Update appc-common to Karaf 4

update appc-common to karaf 4 feature

Change-Id: Ib0ce37032e63ffc61bef94345701f3ab58785153
Signed-off-by: Ryan Young <ry303t@att.com>
Issue-ID: APPC-1022

40 files changed, 4467 insertions, 0 deletions

diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/CmdLineTest.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/CmdLineTest.java
new file mode 100644
index 000000000..1162d7649
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/CmdLineTest.java
@@ -0,0 +1,41 @@
+/*-

+ * ============LICENSE_START=======================================================

+ * ONAP : APPC

+ * ================================================================================

+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.

+ * =============================================================================

+ * Licensed under the Apache License, Version 2.0 (the "License");

+ * you may not use this file except in compliance with the License.

+ * You may obtain a copy of the License at

+ *

+ *      http://www.apache.org/licenses/LICENSE-2.0

+ *

+ * Unless required by applicable law or agreed to in writing, software

+ * distributed under the License is distributed on an "AS IS" BASIS,

+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

+ * See the License for the specific language governing permissions and

+ * limitations under the License.

+ *

+ * ============LICENSE_END=========================================================

+ */

+

+package org.onap.appc;

+

+import static org.junit.Assert.assertNotNull;

+import org.junit.Test;

+

+public class CmdLineTest {

+    @Test

+    public void testMain() {

+        String argv[];

+        argv = new String[] {"encrypt","abc","ghi"};

+        CmdLine.main(argv);

+        argv = new String[0];

+        CmdLine.main(argv);

+        argv = new String[] {"encrypt","abc"};

+        CmdLine.main(argv);

+        

+        CmdLine cmdLine = new CmdLine();

+        assertNotNull(cmdLine);

+    }

+}

diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/ConstantsTest.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/ConstantsTest.java
new file mode 100644
index 000000000..47f3e6a0d
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/ConstantsTest.java
@@ -0,0 +1,33 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2017 Amdocs
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.appc;
+
+import org.junit.Test;
+
+public class ConstantsTest {
+    @Test (expected = IllegalAccessError.class)
+    public void testConstructor() throws Exception {
+        Constants constants = new Constants();
+    }
+}
diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/cache/CacheStrategiesTest.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/cache/CacheStrategiesTest.java
new file mode 100644
index 000000000..901130e79
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/cache/CacheStrategiesTest.java
@@ -0,0 +1,47 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2017 Amdocs
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.appc.cache;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class CacheStrategiesTest {
+    private CacheStrategies cacheStrategies = CacheStrategies.LRU;
+
+    @Test
+    public void testName() throws Exception {
+        Assert.assertEquals("Should have name LRU", "LRU", cacheStrategies.name());
+    }
+
+    @Test
+    public void testToString() throws Exception {
+        Assert.assertEquals("Should return String LRU", "LRU", cacheStrategies.toString());
+    }
+
+    @Test
+    public void testEquals() throws Exception {
+        Assert.assertTrue(cacheStrategies.equals(CacheStrategies.LRU));
+        Assert.assertFalse(cacheStrategies.equals(null));
+    }
+}
diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/cache/impl/LRUCacheTest.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/cache/impl/LRUCacheTest.java
new file mode 100644
index 000000000..2eca72a07
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/cache/impl/LRUCacheTest.java
@@ -0,0 +1,59 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2017 Amdocs
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.appc.cache.impl;
+
+import org.junit.Assert;
+import org.junit.Test;
+import org.powermock.reflect.Whitebox;
+
+import java.util.Map;
+
+public class LRUCacheTest {
+
+    @Test
+    public void testConstructor() throws Exception {
+        LRUCache cache = new LRUCache(20);
+        Map internalMap = Whitebox.getInternalState(cache, "map");
+        Assert.assertTrue(internalMap != null);
+        Assert.assertTrue(internalMap.size() == 0);
+    }
+
+    @Test
+    public void testGetAndPutObject() throws Exception {
+        LRUCache cache = new LRUCache(20);
+
+        String key = "testing key";
+        Assert.assertTrue(cache.getObject(key) == null);
+
+        String value = "testing value";
+        cache.putObject(key, value);
+        Map internalMap = Whitebox.getInternalState(cache, "map");
+        Assert.assertTrue(internalMap.containsKey(key));
+        Assert.assertTrue(internalMap.containsValue(value));
+        Assert.assertTrue(internalMap.size() == 1);
+
+        Assert.assertEquals(value, cache.getObject(key));
+    }
+
+}
diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/cache/impl/MetadataCacheFactoryTest.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/cache/impl/MetadataCacheFactoryTest.java
new file mode 100644
index 000000000..9f2d1a05c
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/cache/impl/MetadataCacheFactoryTest.java
@@ -0,0 +1,68 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2017 Amdocs
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.appc.cache.impl;
+
+import static org.mockito.Mockito.mock;
+import org.junit.Assert;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.onap.appc.cache.CacheStrategies;
+import org.powermock.api.mockito.PowerMockito;
+import org.powermock.core.classloader.annotations.PrepareForTest;
+import org.powermock.modules.junit4.PowerMockRunner;
+import org.powermock.reflect.Whitebox;
+
+@RunWith(PowerMockRunner.class)
+@PrepareForTest({MetadataCacheFactory.class, MetadataCacheImpl.class})
+public class MetadataCacheFactoryTest {
+    @Test
+    public void testConstructor() throws Exception {
+        Whitebox.invokeConstructor(MetadataCacheFactory.class);
+    }
+
+    @Test
+    public void testGetInstance() throws Exception {
+        Assert.assertTrue("Should not return null", MetadataCacheFactory.getInstance() != null);
+        Assert.assertEquals("Should always return the same object",
+                MetadataCacheFactory.getInstance(), MetadataCacheFactory.getInstance());
+    }
+
+    @Test
+    public void testGetMetadataCacheWithNoArgument() throws Exception {
+        MetadataCacheImpl mockImpl = mock(MetadataCacheImpl.class);
+        PowerMockito.whenNew(MetadataCacheImpl.class).withNoArguments().thenReturn(mockImpl);
+        Assert.assertEquals(mockImpl, MetadataCacheFactory.getInstance().getMetadataCache());
+    }
+
+    @Test
+    public void testGetMetadataCacheWithArgument() throws Exception {
+        CacheStrategies cacheStrategies = CacheStrategies.LRU;
+        MetadataCacheImpl mockImpl = mock(MetadataCacheImpl.class);
+        PowerMockito.whenNew(MetadataCacheImpl.class).withArguments(cacheStrategies)
+                .thenReturn(mockImpl);
+        Assert.assertEquals(mockImpl,
+                MetadataCacheFactory.getInstance().getMetadataCache(cacheStrategies));
+    }
+
+}
diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/cache/impl/MetadataCacheImplTest.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/cache/impl/MetadataCacheImplTest.java
new file mode 100644
index 000000000..f3c678441
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/cache/impl/MetadataCacheImplTest.java
@@ -0,0 +1,61 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2017 Amdocs
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.appc.cache.impl;
+
+import static org.mockito.Mockito.spy;
+import org.junit.Assert;
+import org.junit.Test;
+import org.onap.appc.cache.CacheStrategies;
+import org.powermock.reflect.Whitebox;
+
+public class MetadataCacheImplTest {
+    @Test
+    public void testConstructor() throws Exception {
+        // test without parameter
+        MetadataCacheImpl impl = new MetadataCacheImpl<>();
+        Assert.assertTrue("Should have initialized strategy",
+                Whitebox.getInternalState(impl, "strategy") != null);
+
+        // test with parameter
+        impl = new MetadataCacheImpl<>(CacheStrategies.LRU);
+        Assert.assertTrue("Should have initialized strategy",
+                Whitebox.getInternalState(impl, "strategy") != null);
+
+        impl = new MetadataCacheImpl<>(null);
+        Assert.assertTrue("Should not initialized strategy",
+                Whitebox.getInternalState(impl, "strategy") == null);
+    }
+
+    @Test
+    public void testGetAndPutObject() throws Exception {
+        MetadataCacheImpl impl = spy(new MetadataCacheImpl<>());
+
+        String key = "testing key";
+        Assert.assertTrue(impl.getObject(key) == null);
+
+        String value = "testing value";
+        impl.putObject(key, value);
+        Assert.assertEquals(value, impl.getObject(key));
+    }
+}
diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/concurrent/TestSignal.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/concurrent/TestSignal.java
new file mode 100644
index 000000000..4b5eadd7a
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/concurrent/TestSignal.java
@@ -0,0 +1,155 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2017 Amdocs
+ * =============================================================================
+ * Modification Copyright (C) 2018 IBM
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.appc.concurrent;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.assertEquals;
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.concurrent.TimeoutException;
+
+import org.junit.Test;
+import org.onap.appc.concurrent.Signal;
+
+
+
+public class TestSignal {
+
+    private static final DateFormat formatter = new SimpleDateFormat("HH:mm:ss.SSS");
+    public static final String SIGNAL_READY = "READY";
+    public static final String SIGNAL_SHUTDOWN = "SHUTDOWN";
+
+    @Test
+    public void TestSimpleSignal() throws TimeoutException {
+
+        Signal mySignal = new Signal(Thread.currentThread());
+        mySignal.setTimeout(5000L);
+        Fred fred = new Fred(mySignal);
+        Thread t1 = new Thread(fred);
+
+        /*
+         * Verify that fred is dead, then start him and wait for him to signal us he is ready to proceed
+         */
+        assertFalse(t1.isAlive());
+        t1.start();
+        System.out.println(formatter.format(new Date()) + " MAIN: Waiting for Ready...");
+        mySignal.waitFor(SIGNAL_READY);
+        System.out.println(formatter.format(new Date()) + " MAIN: Signal Ready received");
+
+        /*
+         * Verify that fred is still alive and we will sleep for a while (simulate doing things)
+         */
+        assertTrue(t1.isAlive());
+        try {
+            Thread.sleep(250L);
+        } catch (InterruptedException e) {
+            // ignored
+        }
+
+        /*
+         * Verify that fred is still alive and signal him to shutdown
+         */
+        assertTrue(t1.isAlive());
+        System.out.println(formatter.format(new Date()) + " MAIN: Signaling shutdown");
+        fred.getSignal().signal(SIGNAL_SHUTDOWN);
+
+        /*
+         * Wait a little bit
+         */
+        try {
+            Thread.sleep(250L);
+        } catch (InterruptedException e) {
+            // ignored
+        }
+
+        /*
+         * Verify that fred is dead now and that he completed normally
+         */
+        System.out.println(formatter.format(new Date()) + " MAIN: Shutting down...");
+        assertFalse(t1.isAlive());
+        assertTrue(fred.isCompleted());
+    }
+
+    public class Fred implements Runnable {
+        private Signal signal;
+        private Signal parentSignal;
+        private boolean completed = false;
+
+        public Fred(Signal parentSignal) {
+            this.parentSignal = parentSignal;
+        }
+
+        @Override
+        public void run() {
+            signal = new Signal(Thread.currentThread());
+            signal.setTimeout(5000L);
+            try {
+                Thread.sleep(250L);
+            } catch (InterruptedException e) {
+                // Ignore
+            }
+
+            System.out.println(formatter.format(new Date()) + " FRED: Signaling ready...");
+            parentSignal.signal(SIGNAL_READY);
+
+            try {
+                System.out.println(formatter.format(new Date()) + " FRED: Waiting for shutdown...");
+                signal.waitFor(SIGNAL_SHUTDOWN);
+                System.out.println(formatter.format(new Date()) + " FRED: Received shutdown");
+                completed = true;
+            } catch (TimeoutException e) {
+                
+            }
+        }
+
+        public boolean isCompleted() {
+            return completed;
+        }
+
+        public Signal getSignal() {
+            return signal;
+        }
+    }
+    
+    @Test
+    public void testWaitForAny() throws Exception
+    {
+        Signal mySignal = new Signal(Thread.currentThread());
+        mySignal.setTimeout(50L);
+        String receivedSignal= mySignal.waitForAny(SIGNAL_READY);
+        assertEquals("READY", receivedSignal);
+    }
+    
+    @Test(expected=TimeoutException.class)
+    public void testWaitForAnyForEmptySignal() throws TimeoutException
+    {
+        Signal mySignal = new Signal(Thread.currentThread());
+        mySignal.setTimeout(50L);
+        mySignal.waitForAny();
+    }
+}
diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/configuration/ConfigurationFactoryTest.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/configuration/ConfigurationFactoryTest.java
new file mode 100644
index 000000000..7d0206467
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/configuration/ConfigurationFactoryTest.java
@@ -0,0 +1,15 @@
+package org.onap.appc.configuration;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import static org.onap.appc.configuration.ConfigurationFactory.getConfiguration;
+
+public class ConfigurationFactoryTest {
+    @Test
+    public void should_returnDefaultConfiguration(){
+        Configuration conf = null;
+
+        Assert.assertTrue(getConfiguration() instanceof DefaultConfiguration);
+    }
+}
\ No newline at end of file
diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/configuration/DefaultConfigurationTest.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/configuration/DefaultConfigurationTest.java
new file mode 100644
index 000000000..aed414192
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/configuration/DefaultConfigurationTest.java
@@ -0,0 +1,347 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2017 Amdocs
+ * =============================================================================
+ * Modification Copyright (C) 2018 IBM.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.appc.configuration;
+
+import static org.mockito.Mockito.mock;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Properties;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.Mockito;
+import org.powermock.reflect.Whitebox;
+
+public class DefaultConfigurationTest {
+    private static final String propKey1 = "testKey1";
+    private static final String propKey2 = "testKey2";
+    private static final String propValue1 = "testValue1";
+    private static final String propValue2 = "testValue2";
+
+    private Properties prop = new Properties();
+    private DefaultConfiguration defaultConfiguration;
+
+    @Before
+    public void setUp() throws Exception {
+        prop.setProperty(propKey1, propValue1);
+        prop.setProperty(propKey2, propValue2);
+
+        defaultConfiguration = new DefaultConfiguration();
+    }
+
+    @Test
+    public void testClear() throws Exception {
+        Whitebox.setInternalState(defaultConfiguration, "properties", prop);
+        defaultConfiguration.clear();
+        Properties internalProp = Whitebox.getInternalState(defaultConfiguration, "properties");
+        Assert.assertTrue("internal properties should be cleared", internalProp.isEmpty());
+    }
+
+    @Test
+    public void testClone() throws Exception {
+        Object clonedObject = defaultConfiguration.clone();
+        Assert.assertTrue("Should be DefaultConfiguration",
+                clonedObject instanceof DefaultConfiguration);
+        Properties internalProp = Whitebox.getInternalState(defaultConfiguration, "properties");
+        Properties clonedInternalProp = Whitebox.getInternalState(clonedObject, "properties");
+        Assert.assertEquals(internalProp, clonedInternalProp);
+    }
+
+    @Test
+    public void testEquals() throws Exception {
+        // test compare with null
+        Assert.assertFalse(defaultConfiguration.equals(null));
+        // test with non-DefaultConfiguration object
+        Assert.assertFalse(defaultConfiguration.equals("abc"));
+
+        // test with not match DefaultConfiguration object
+        defaultConfiguration.setProperties(prop);
+        DefaultConfiguration newConfig = new DefaultConfiguration();
+        Assert.assertFalse(defaultConfiguration.equals(newConfig));
+
+        // test with matching DefaultConfiguration object
+        newConfig.setProperties(prop);
+        Assert.assertTrue(defaultConfiguration.equals(newConfig));
+    }
+
+    @Test
+    public void testSetPropAndGetBooleanProperty() throws Exception {
+        String booleanKey = "booleanKey";
+        // test default value
+        Assert.assertFalse(defaultConfiguration.getBooleanProperty(booleanKey));
+        // test match value true
+        defaultConfiguration.setProperty(booleanKey, "true");
+        Assert.assertTrue(defaultConfiguration.getBooleanProperty(booleanKey));
+        defaultConfiguration.setProperty(booleanKey, "True");
+        Assert.assertTrue(defaultConfiguration.getBooleanProperty(booleanKey));
+        defaultConfiguration.setProperty(booleanKey, "TrUe");
+        Assert.assertTrue(defaultConfiguration.getBooleanProperty(booleanKey));
+        // test not matching true values
+        defaultConfiguration.setProperty(booleanKey, "false");
+        Assert.assertFalse(defaultConfiguration.getBooleanProperty(booleanKey));
+        defaultConfiguration.setProperty(booleanKey, "abc");
+        Assert.assertFalse(defaultConfiguration.getBooleanProperty(booleanKey));
+    }
+    
+    @Test
+    public void testSetPropAndGetBooleanPropertyForEncryptedValue()
+    {
+        String booleanKey = "booleanKey";
+        defaultConfiguration.setProperty(booleanKey, "enc:true");
+        Assert.assertFalse(defaultConfiguration.getBooleanProperty(booleanKey));
+    }
+    
+   
+    @Test
+    public void testSetPropAndGetBooleanPropertyWithDefaultValue() throws Exception {
+        String booleanKey = "booleanKey";
+        // test default value
+        Assert.assertFalse(defaultConfiguration.getBooleanProperty(booleanKey, false));
+        Assert.assertTrue(defaultConfiguration.getBooleanProperty(booleanKey, true));
+        // test match value true
+        defaultConfiguration.setProperty(booleanKey, "true");
+        Assert.assertTrue(defaultConfiguration.getBooleanProperty(booleanKey, false));
+        defaultConfiguration.setProperty(booleanKey, "True");
+        Assert.assertTrue(defaultConfiguration.getBooleanProperty(booleanKey, false));
+        defaultConfiguration.setProperty(booleanKey, "TrUe");
+        Assert.assertTrue(defaultConfiguration.getBooleanProperty(booleanKey, false));
+        // test not matching true values
+        defaultConfiguration.setProperty(booleanKey, "false");
+        Assert.assertFalse(defaultConfiguration.getBooleanProperty(booleanKey, true));
+        defaultConfiguration.setProperty(booleanKey, "abc");
+        Assert.assertFalse(defaultConfiguration.getBooleanProperty(booleanKey, true));
+    }
+
+    @Test
+    public void testSetPropAndGetDoubleProperty() throws Exception {
+        String doubleKey = "doubleKey";
+        // test default value
+        Assert.assertTrue(0.0 == defaultConfiguration.getDoubleProperty(doubleKey));
+        // test NumberFormatException
+        defaultConfiguration.setProperty(doubleKey, "abc");
+        Assert.assertTrue(0.0 == defaultConfiguration.getDoubleProperty(doubleKey));
+        // test normal
+        defaultConfiguration.setProperty(doubleKey, "1.1");
+        Assert.assertTrue(1.1 == defaultConfiguration.getDoubleProperty(doubleKey));
+    }
+
+    @Test
+    public void testSetPropAndGetDoublePropertyWithDefaultValue() throws Exception {
+        String doubleKey = "doubleKey";
+        // test default value
+        Assert.assertTrue(2.2 == defaultConfiguration.getDoubleProperty(doubleKey, 2.2));
+        // test NumberFormatException
+        defaultConfiguration.setProperty(doubleKey, "abc");
+        Assert.assertTrue(0.0 == defaultConfiguration.getDoubleProperty(doubleKey, 2.2));
+        // test normal
+        defaultConfiguration.setProperty(doubleKey, "1.1");
+        Assert.assertTrue(1.1 == defaultConfiguration.getDoubleProperty(doubleKey, 2.2));
+    }
+
+    @Test
+    public void testSetPropAndGetIntegerProperty() throws Exception {
+        String integerKey = "integerKey";
+        // test default value
+        Assert.assertTrue(0 == defaultConfiguration.getIntegerProperty(integerKey));
+        // test NumberFormatException
+        defaultConfiguration.setProperty(integerKey, "abc");
+        Assert.assertTrue(0 == defaultConfiguration.getIntegerProperty(integerKey));
+        // test normal
+        defaultConfiguration.setProperty(integerKey, "100");
+        Assert.assertTrue(100 == defaultConfiguration.getIntegerProperty(integerKey));
+    }
+
+    @Test
+    public void testSetPropAndGetIntegerPropertyWithDefaultValue() throws Exception {
+        String integerKey = "integerKey";
+        // test default value
+        Assert.assertTrue(100 == defaultConfiguration.getIntegerProperty(integerKey, 100));
+        // test NumberFormatException
+        defaultConfiguration.setProperty(integerKey, "abc");
+        Assert.assertTrue(0 == defaultConfiguration.getIntegerProperty(integerKey, 100));
+        // test normal
+        defaultConfiguration.setProperty(integerKey, "100");
+        Assert.assertTrue(100 == defaultConfiguration.getIntegerProperty(integerKey, 10));
+    }
+
+    @Test
+    public void testSetPropAndGetLongProperty() throws Exception {
+        String longKey = "longKey";
+        // test default value
+        Assert.assertTrue(0 == defaultConfiguration.getLongProperty(longKey));
+        // test NumberFormatException
+        defaultConfiguration.setProperty(longKey, "abc");
+        Assert.assertTrue(0 == defaultConfiguration.getLongProperty(longKey));
+        // test normal
+        defaultConfiguration.setProperty(longKey, "100");
+        Assert.assertTrue(100 == defaultConfiguration.getLongProperty(longKey));
+    }
+
+    @Test
+    public void testSetPropAndGetLongPropertyWithDefaultVaue() throws Exception {
+        String longKey = "longKey";
+        // test default value
+        Assert.assertTrue(10 == defaultConfiguration.getLongProperty(longKey, 10));
+        // test NumberFormatException
+        defaultConfiguration.setProperty(longKey, "abc");
+        Assert.assertTrue(0 == defaultConfiguration.getLongProperty(longKey, 10));
+        // test normal
+        defaultConfiguration.setProperty(longKey, "100");
+        Assert.assertTrue(100 == defaultConfiguration.getLongProperty(longKey, 10));
+    }
+
+    @Test
+    public void testSetAndGetProperties() throws Exception {
+        Properties internalProp = Whitebox.getInternalState(defaultConfiguration, "properties");
+        Assert.assertEquals(internalProp, defaultConfiguration.getProperties());
+
+        defaultConfiguration.setProperties(prop);
+        internalProp = Whitebox.getInternalState(defaultConfiguration, "properties");
+        Assert.assertEquals(internalProp, defaultConfiguration.getProperties());
+    }
+
+    @Test
+    public void testSetAndGetProperty() throws Exception {
+        String key = "key";
+        // test default value
+        Assert.assertTrue(null == defaultConfiguration.getProperty(key));
+        // test normal
+        defaultConfiguration.setProperty(key, "abc");
+        Assert.assertEquals("abc", defaultConfiguration.getProperty(key));
+    }
+
+    @Test
+    public void testSetPropAndGetPropertyWithDefaultValue() throws Exception {
+        String key = "key";
+        // test default value
+        Assert.assertTrue(null == defaultConfiguration.getProperty(key, null));
+        Assert.assertEquals("abc", defaultConfiguration.getProperty(key, "abc"));
+        // test normal
+        defaultConfiguration.setProperty(key, "abc");
+        Assert.assertEquals("abc", defaultConfiguration.getProperty(key, "abcd"));
+    }
+
+    @Test
+    public void testHashCode() throws Exception {
+        Properties properties = null;
+        Whitebox.setInternalState(defaultConfiguration, "properties", properties);
+        Assert.assertEquals(0, defaultConfiguration.hashCode());
+
+
+        Whitebox.setInternalState(defaultConfiguration, "properties", prop);
+        Assert.assertEquals(prop.hashCode(), defaultConfiguration.hashCode());
+    }
+
+    @Test
+    public void testIsPropertyDefined() throws Exception {
+        String key = "key";
+        // test not exist
+        Assert.assertFalse(defaultConfiguration.isPropertyDefined(key));
+        // test exist
+        defaultConfiguration.setProperty(key, "abc");
+        Assert.assertTrue(defaultConfiguration.isPropertyDefined(key));
+    }
+
+    @Test
+    public void testIsValidBoolean() throws Exception {
+        String key = "key";
+        // test not exist
+        Assert.assertFalse(defaultConfiguration.isValidBoolean(key));
+        // test exist with invalid
+        defaultConfiguration.setProperty(key, "abc");
+        Assert.assertFalse(defaultConfiguration.isValidBoolean(key));
+        // test exist with valid
+        defaultConfiguration.setProperty(key, "True");
+        Assert.assertTrue(defaultConfiguration.isPropertyDefined(key));
+        defaultConfiguration.setProperty(key, "FaLse");
+        Assert.assertTrue(defaultConfiguration.isPropertyDefined(key));
+    }
+
+    @Test
+    public void testIsValidDouble() throws Exception {
+        String key = "key";
+        // test not exist
+        Assert.assertFalse(defaultConfiguration.isValidDouble(key));
+        // test exist with invalid
+        defaultConfiguration.setProperty(key, "abc");
+        Assert.assertFalse(defaultConfiguration.isValidDouble(key));
+        // test exist with valid
+        defaultConfiguration.setProperty(key, "2");
+        Assert.assertTrue(defaultConfiguration.isValidDouble(key));
+        defaultConfiguration.setProperty(key, "3.45");
+        Assert.assertTrue(defaultConfiguration.isValidDouble(key));
+    }
+
+    @Test
+    public void testIsValidInteger() throws Exception {
+        String key = "key";
+        // test not exist
+        Assert.assertFalse(defaultConfiguration.isValidInteger(key));
+        // test exist with invalid
+        defaultConfiguration.setProperty(key, "abc");
+        Assert.assertFalse(defaultConfiguration.isValidInteger(key));
+        defaultConfiguration.setProperty(key, "3.45");
+        Assert.assertFalse(defaultConfiguration.isValidInteger(key));
+        // test exist with valid
+        defaultConfiguration.setProperty(key, "2");
+        Assert.assertTrue(defaultConfiguration.isValidInteger(key));
+    }
+
+    @Test
+    public void testIsValidLong() throws Exception {
+        String key = "key";
+        // test not exist
+        Assert.assertFalse(defaultConfiguration.isValidLong(key));
+        // test exist with invalid
+        defaultConfiguration.setProperty(key, "abc");
+        Assert.assertFalse(defaultConfiguration.isValidLong(key));
+        defaultConfiguration.setProperty(key, "3.45");
+        Assert.assertFalse(defaultConfiguration.isValidLong(key));
+        // test exist with valid
+        defaultConfiguration.setProperty(key, "2");
+        Assert.assertTrue(defaultConfiguration.isValidLong(key));
+    }
+
+    @Test
+    public void testSetPropertiesWithInputStream() throws Exception {
+        InputStream mockIS = mock(InputStream.class);
+        defaultConfiguration.setProperties(mockIS);
+
+        Properties mockProp = mock(Properties.class);
+        Mockito.doThrow(new IOException("testing exception")).when(mockProp).load(mockIS);
+        Whitebox.setInternalState(defaultConfiguration, "properties", mockProp);
+        defaultConfiguration.setProperties(mockIS);
+        // Should come here without exception
+    }
+
+    @Test
+    public void testToString() throws Exception {
+        Properties internalProp = Whitebox.getInternalState(defaultConfiguration, "properties");
+        Assert.assertEquals(String.format("Configuration: %d properties, keys:[%s]",
+                internalProp.size(), internalProp.keySet().toString()),
+                defaultConfiguration.toString());
+    }
+}
diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/encryption/EncryptionToolTest.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/encryption/EncryptionToolTest.java
new file mode 100644
index 000000000..ae6de6dcc
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/encryption/EncryptionToolTest.java
@@ -0,0 +1,72 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2017 Amdocs
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.appc.encryption;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotEquals;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+
+public class EncryptionToolTest {
+
+    private static final String PLAIN_TEXT = "text to encrypt";
+    private static final String EMPTY_STR = "";
+
+    private EncryptionTool encryptionTool = EncryptionTool.getInstance();
+
+    @Test
+    public void should_return_prefix_given_empty_string() {
+        assertEquals("enc:", encryptionTool.encrypt(EMPTY_STR));
+    }
+
+    @Test
+    public void should_return_null_given_null() {
+        assertNull(encryptionTool.encrypt(null));
+    }
+
+    @Test
+    public void should_encrypt_given_string() {
+        String encrypted = encryptionTool.encrypt(PLAIN_TEXT);
+
+        assertNotEquals(encrypted, PLAIN_TEXT);
+        assertTrue(encrypted.startsWith(EncryptionTool.ENCRYPTED_VALUE_PREFIX));
+    }
+
+    @Test
+    public void should_not_decrypt_string_when_not_starting_with_prefix() {
+
+        assertNull(encryptionTool.decrypt(null));
+        assertEquals("mdi/12!dsao91", encryptionTool.decrypt("mdi/12!dsao91"));
+    }
+
+    @Test
+    public void should_decrypt_given_encrypted_string() {
+        String encrypted = encryptionTool.encrypt(PLAIN_TEXT);
+
+        assertEquals(PLAIN_TEXT, encryptionTool.decrypt(encrypted));
+    }
+}
diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/encryption/HexHelperTest.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/encryption/HexHelperTest.java
new file mode 100644
index 000000000..3af421a0f
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/encryption/HexHelperTest.java
@@ -0,0 +1,78 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2018 Nokia Solutions and Networks
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.appc.encryption;
+
+import static com.google.common.collect.Lists.newArrayList;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotEquals;
+import static org.junit.Assert.assertTrue;
+
+import java.util.List;
+import org.junit.Test;
+
+public class HexHelperTest {
+
+    private final List<Character> hexChars =
+        newArrayList('0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B','C', 'D', 'E', 'F');
+
+    @Test(expected = EncryptionException.class)
+    public void convertHexToBytes_should_throw_given_null() throws EncryptionException {
+
+        HexHelper.convertHexToBytes(null);
+    }
+
+    @Test(expected = EncryptionException.class)
+    public void convertHexToBytes_should_throw_given_non_hexadecimal_string() throws EncryptionException {
+
+        HexHelper.convertHexToBytes("125FET4A");
+    }
+
+    @Test
+    public void convertHexToBytes_should_convert_hexadecimal_string_to_byte_array() throws EncryptionException {
+
+        byte[] result = HexHelper.convertHexToBytes("125FE4A");
+
+        assertNotEquals(0, result.length);
+    }
+
+
+    @Test(expected = EncryptionException.class)
+    public void convertBytesToHex_should_throw_given_null() throws EncryptionException {
+
+        HexHelper.convertBytesToHex(null);
+    }
+
+
+    @Test
+    public void convertBytesToHex_should_convert_byte_array_to_hexadecimal_string() throws EncryptionException {
+
+        String resultString = HexHelper.convertBytesToHex(new byte[]{24, -1, 85, 99});
+        for (char ch : resultString.toCharArray()) {
+            assertTrue(hexChars.contains(ch));
+        }
+
+        byte[] resultArray = HexHelper.convertHexToBytes("A56C9ED17");
+        assertEquals("0A56C9ED17", HexHelper.convertBytesToHex(resultArray));
+    }
+
+}
diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/exceptions/APPCExceptionTest.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/exceptions/APPCExceptionTest.java
new file mode 100644
index 000000000..f79be0e9d
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/exceptions/APPCExceptionTest.java
@@ -0,0 +1,88 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2017 Amdocs
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.appc.exceptions;
+
+import org.junit.Assert;
+import org.junit.Test;
+import org.powermock.reflect.Whitebox;
+
+
+public class APPCExceptionTest {
+
+    @Test
+    public void testConstructorNoArgument() throws Exception {
+        APPCException appcException = new APPCException();
+        Assert.assertTrue(appcException.getCause() == null);
+        Assert.assertTrue(appcException.getLocalizedMessage() == null);
+        Assert.assertTrue(appcException.getMessage() == null);
+    }
+
+    @Test
+    public void testConstructorWithMessaqge() throws Exception {
+        String message = "testing message";
+        APPCException appcException = new APPCException(message);
+        Assert.assertTrue(appcException.getCause() == null);
+        Assert.assertEquals(message, appcException.getLocalizedMessage());
+        Assert.assertEquals(message, appcException.getMessage());
+    }
+
+    @Test
+    public void testConstructorWithThrowable() throws Exception {
+        String message = "testing message";
+        Throwable throwable = new Throwable(message);
+        APPCException appcException = new APPCException(throwable);
+        Assert.assertEquals(throwable, appcException.getCause());
+        Assert.assertTrue(appcException.getLocalizedMessage().contains(message));
+        Assert.assertTrue(appcException.getMessage().contains(message));
+    }
+
+    @Test
+    public void testConstructorWithMessageAndThrowable() throws Exception {
+        String message = "testing message";
+        String tMessage = "throwable message";
+        Throwable throwable = new Throwable(tMessage);
+        APPCException appcException = new APPCException(message, throwable);
+        Assert.assertEquals(throwable, appcException.getCause());
+        Assert.assertTrue(appcException.getLocalizedMessage().contains(message));
+        Assert.assertTrue(appcException.getMessage().contains(message));
+    }
+
+    @Test
+    public void testConstructorWithFourArguments() throws Exception {
+        String message = "testing message";
+        String tMessage = "throwable message";
+        Throwable throwable = new Throwable(tMessage);
+        APPCException appcException = new APPCException(message, throwable, true, true);
+        Assert.assertEquals(throwable, appcException.getCause());
+        Assert.assertTrue(appcException.getLocalizedMessage().contains(message));
+        Assert.assertTrue(appcException.getMessage().contains(message));
+
+        Assert.assertTrue(Whitebox.getInternalState(appcException, "stackTrace") != null);
+        Assert.assertTrue(Whitebox.getInternalState(appcException, "suppressedExceptions") != null);
+
+        appcException = new APPCException(message, throwable, false, false);
+        Assert.assertTrue(Whitebox.getInternalState(appcException, "stackTrace") == null);
+        Assert.assertTrue(Whitebox.getInternalState(appcException, "suppressedExceptions") == null);
+    }
+}
diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/exceptions/InvalidInputExceptionTest.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/exceptions/InvalidInputExceptionTest.java
new file mode 100644
index 000000000..4e30ed5f6
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/exceptions/InvalidInputExceptionTest.java
@@ -0,0 +1,38 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2017 Amdocs
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.appc.exceptions;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class InvalidInputExceptionTest {
+    @Test
+    public void testConstructor() throws Exception {
+        String message = "testing message";
+        InvalidInputException invalidInputException = new InvalidInputException(message);
+        Assert.assertTrue(invalidInputException.getCause() == null);
+        Assert.assertEquals(message, invalidInputException.getLocalizedMessage());
+        Assert.assertEquals(message, invalidInputException.getMessage());
+    }
+}
diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/exceptions/InvalidStateExceptionTest.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/exceptions/InvalidStateExceptionTest.java
new file mode 100644
index 000000000..21374dae6
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/exceptions/InvalidStateExceptionTest.java
@@ -0,0 +1,38 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2017 Amdocs
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.appc.exceptions;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class InvalidStateExceptionTest {
+    @Test
+    public void testConstructor() throws Exception {
+        String message = "testing message";
+        InvalidStateException invalidStateException = new InvalidStateException(message);
+        Assert.assertTrue(invalidStateException.getCause() == null);
+        Assert.assertEquals(message, invalidStateException.getLocalizedMessage());
+        Assert.assertEquals(message, invalidStateException.getMessage());
+    }
+}
diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/exceptions/UnknownProviderExceptionTest.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/exceptions/UnknownProviderExceptionTest.java
new file mode 100644
index 000000000..c969c0cff
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/exceptions/UnknownProviderExceptionTest.java
@@ -0,0 +1,94 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2017 Amdocs
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.appc.exceptions;
+
+import org.junit.Assert;
+import org.junit.Test;
+import org.powermock.reflect.Whitebox;
+
+public class UnknownProviderExceptionTest {
+
+    @Test
+    public void testConstructorNoArgument() throws Exception {
+        UnknownProviderException unknownProviderException = new UnknownProviderException();
+        Assert.assertTrue(unknownProviderException.getCause() == null);
+        Assert.assertTrue(unknownProviderException.getLocalizedMessage() == null);
+        Assert.assertTrue(unknownProviderException.getMessage() == null);
+    }
+
+    @Test
+    public void testConstructorWithMessaqge() throws Exception {
+        String message = "testing message";
+        UnknownProviderException unknownProviderException = new UnknownProviderException(message);
+        Assert.assertTrue(unknownProviderException.getCause() == null);
+        Assert.assertEquals(message, unknownProviderException.getLocalizedMessage());
+        Assert.assertEquals(message, unknownProviderException.getMessage());
+    }
+
+    @Test
+    public void testConstructorWithThrowable() throws Exception {
+        String message = "testing message";
+        Throwable throwable = new Throwable(message);
+        UnknownProviderException unknownProviderException = new UnknownProviderException(throwable);
+        Assert.assertEquals(throwable, unknownProviderException.getCause());
+        Assert.assertTrue(unknownProviderException.getLocalizedMessage().contains(message));
+        Assert.assertTrue(unknownProviderException.getMessage().contains(message));
+    }
+
+    @Test
+    public void testConstructorWithMessageAndThrowable() throws Exception {
+        String message = "testing message";
+        String tMessage = "throwable message";
+        Throwable throwable = new Throwable(tMessage);
+        UnknownProviderException unknownProviderException =
+                new UnknownProviderException(message, throwable);
+        Assert.assertEquals(throwable, unknownProviderException.getCause());
+        Assert.assertTrue(unknownProviderException.getLocalizedMessage().contains(message));
+        Assert.assertTrue(unknownProviderException.getMessage().contains(message));
+    }
+
+    @Test
+    public void testConstructorWithFourArguements() throws Exception {
+        String message = "testing message";
+        String tMessage = "throwable message";
+        Throwable throwable = new Throwable(tMessage);
+        UnknownProviderException unknownProviderException =
+                new UnknownProviderException(message, throwable, true, true);
+        Assert.assertEquals(throwable, unknownProviderException.getCause());
+        Assert.assertTrue(unknownProviderException.getLocalizedMessage().contains(message));
+        Assert.assertTrue(unknownProviderException.getMessage().contains(message));
+
+        Assert.assertTrue(
+                Whitebox.getInternalState(unknownProviderException, "stackTrace") != null);
+        Assert.assertTrue(Whitebox.getInternalState(unknownProviderException,
+                "suppressedExceptions") != null);
+
+        unknownProviderException = new UnknownProviderException(message, throwable, false, false);
+        Assert.assertTrue(
+                Whitebox.getInternalState(unknownProviderException, "stackTrace") == null);
+        Assert.assertTrue(Whitebox.getInternalState(unknownProviderException,
+                "suppressedExceptions") == null);
+    }
+
+}
diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/i18n/MsgTest.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/i18n/MsgTest.java
new file mode 100644
index 000000000..5fbcac13d
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/i18n/MsgTest.java
@@ -0,0 +1,37 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2017 Amdocs
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.appc.i18n;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class MsgTest {
+    @Test
+    public void testNameAndToString() throws Exception {
+        for (Msg msg : Msg.values()) {
+            Assert.assertEquals(msg.name(), msg.toString());
+        }
+    }
+
+}
diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/logging/LoggingConstantsTest.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/logging/LoggingConstantsTest.java
new file mode 100644
index 000000000..b2519fe00
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/logging/LoggingConstantsTest.java
@@ -0,0 +1,59 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2017 Amdocs
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.appc.logging;
+
+import org.junit.Test;
+import org.powermock.reflect.Whitebox;
+
+public class LoggingConstantsTest {
+    @Test (expected = IllegalAccessError.class)
+    public void testConstructor() throws Exception {
+        Whitebox.invokeConstructor(LoggingConstants.class);
+    }
+
+    @Test (expected = IllegalAccessError.class)
+    public void testMdcKeysConstructor() throws Exception {
+        Whitebox.invokeConstructor(LoggingConstants.MDCKeys.class);
+    }
+
+    @Test (expected = IllegalAccessError.class)
+    public void testStatusCodesConstructor() throws Exception {
+        Whitebox.invokeConstructor(LoggingConstants.StatusCodes.class);
+    }
+
+    @Test (expected = IllegalAccessError.class)
+    public void testTargetNamesConstructor() throws Exception {
+        Whitebox.invokeConstructor(LoggingConstants.TargetNames.class);
+    }
+
+    @Test (expected = IllegalAccessError.class)
+    public void testTargetServiceNamesConstructor() throws Exception {
+        Whitebox.invokeConstructor(LoggingConstants.TargetServiceNames.class);
+    }
+
+    @Test (expected = IllegalAccessError.class)
+    public void testAAIServiceNamesConstructor() throws Exception {
+        Whitebox.invokeConstructor(LoggingConstants.TargetServiceNames.AAIServiceNames.class);
+    }
+}
diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/logging/LoggingUtilsTest.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/logging/LoggingUtilsTest.java
new file mode 100644
index 000000000..cc7216018
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/logging/LoggingUtilsTest.java
@@ -0,0 +1,357 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.appc.logging;
+
+import org.junit.Test;
+import org.powermock.reflect.Whitebox;
+import org.slf4j.MDC;
+import com.att.eelf.configuration.EELFLogger;
+import com.att.eelf.configuration.EELFManager;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.fail;
+import java.lang.Class;
+import java.lang.reflect.Method;
+import java.time.Instant;
+
+public class LoggingUtilsTest {
+    @Test(expected = IllegalAccessError.class)
+    public void testConstructor() throws Exception {
+        Whitebox.invokeConstructor(LoggingUtils.class);
+    }
+
+    @Test
+    public void testLogErrorMessageStringStringStringStringStringString() {
+        try {
+            LoggingUtils.logErrorMessage("ERROR_CODE", "ERROR_DESCRIPTION", "TARGET_ENTITY", "TARGET_SERVICE_NAME", "ADDITIONAL_MESSAGE", "CLASS_NAME");
+            assertNull(MDC.get(LoggingConstants.MDCKeys.CLASS_NAME));
+        } catch (Exception e) {
+            fail("Exception invoking logErrorMessage: " + e.toString());
+        }
+    }
+
+    @Test
+    public void testLogErrorMessageStringStringStringString() {
+        try {
+            LoggingUtils.logErrorMessage("TARGET_ENTITY", "TARGET_SERVICE_NAME", "ADDITIONAL_MESSAGE", "CLASS_NAME");
+            assertNull(MDC.get(LoggingConstants.MDCKeys.CLASS_NAME));
+        } catch (Exception e) {
+            fail("Exception invoking logErrorMessage: " + e.toString());
+        }
+        }
+
+    @Test
+    public void testLogErrorMessageStringStringString() {
+        try {
+            LoggingUtils.logErrorMessage("TARGET_SERVICE_NAME", "ADDITIONAL_MESSAGE", "CLASS_NAME");
+            assertNull(MDC.get(LoggingConstants.MDCKeys.CLASS_NAME));
+        } catch (Exception e) {
+            fail("Exception invoking logErrorMessage: " + e.toString());
+        }
+    }
+
+    @Test
+    public void testLogError() {
+        try {
+            Class<?>[] paramString = { String.class, String.class, String.class, String.class, String.class, String.class };
+            Method m = LoggingUtils.class.getDeclaredMethod("logError", paramString);
+            m.setAccessible(true);
+            m.invoke(null, "ERROR_CODE", "ERROR_DESCRIPTION", "TARGET_ENTITY", "TARGET_SERVICE_NAME", "ADDITIONAL_MESSAGE", "CLASS_NAME");
+            assertNull(MDC.get(LoggingConstants.MDCKeys.CLASS_NAME));
+        } catch (Exception e) {
+            fail("Exception invoking logError: " + e.toString());
+        }
+    }
+
+    @Test
+    public void testLogAuditMessage() {
+        try {
+            Class<?>[] paramString = { Instant.class, Instant.class, String.class, String.class, String.class };
+            Method m = LoggingUtils.class.getDeclaredMethod("logAuditMessage", paramString);
+            m.setAccessible(true);
+            java.util.Date timestamp = new java.util.Date();
+            m.invoke(null, timestamp.toInstant(), timestamp.toInstant(), "CODE", "RESPONSE_DESCRIPTION", "CLASS_NAME");
+            assertNull(MDC.get(LoggingConstants.MDCKeys.CLASS_NAME));
+        } catch (Exception e) {
+            fail("Exception invoking logAuditMessage: " + e.toString());
+        }
+    }
+
+    @Test
+    public void testAuditInfo() {
+        try {
+            EELFLogger auditLogger = EELFManager.getInstance().getAuditLogger();
+            auditLogger.info("Audit logging test info");
+        } catch (Exception e) {
+            fail("Exception invoking testAuditInfo: " + e.toString());
+        }
+    }
+
+    @Test
+    public void testAuditWarn() {
+        try {
+            EELFLogger auditLogger = EELFManager.getInstance().getAuditLogger();
+            auditLogger.warn("Audit logging test warning");
+        } catch (Exception e) {
+            fail("Exception invoking testAuditWarn: " + e.toString());
+        }
+    }
+
+    @Test
+    public void testLogMetricsMessage() {
+        try {
+            java.util.Date timestamp = new java.util.Date();
+            LoggingUtils.logMetricsMessage(timestamp.toInstant(), timestamp.toInstant(), "TARGET_ENTITY", "TARGET_SERVICE_NAME", "STATUS_CODE", "RESPONSE_CODE", "RESPONSE_DESCRIPTION", "CLASS_NAME");
+            assertNull(MDC.get(LoggingConstants.MDCKeys.STATUS_CODE));
+
+        } catch (Exception e) {
+            fail("Exception invoking logMetricsMessage: " + e.toString());
+        }
+    }
+
+    @Test
+    public void testPopulateAuditLogContext() {
+        try {
+            Class<?>[] paramString = { Instant.class, Instant.class, String.class, String.class, String.class };
+            Method m = LoggingUtils.class.getDeclaredMethod("populateAuditLogContext", paramString);
+            m.setAccessible(true);
+            java.util.Date timestamp = new java.util.Date();
+            m.invoke(null, timestamp.toInstant(), timestamp.toInstant(), "100", "RESPONSE_DESCRIPTION", "CLASS_NAME");
+            assertEquals("COMPLETE", MDC.get(LoggingConstants.MDCKeys.STATUS_CODE));
+            assertEquals("100", MDC.get(LoggingConstants.MDCKeys.RESPONSE_CODE));
+            assertEquals("RESPONSE_DESCRIPTION", MDC.get(LoggingConstants.MDCKeys.RESPONSE_DESCRIPTION));
+        } catch (Exception e) {
+            fail("Exception invoking populateAuditLogContext: " + e.toString());
+        }
+    }
+
+    @Test
+    public void testCleanAuditErrorContext() {
+        try {
+            Method m = LoggingUtils.class.getDeclaredMethod("cleanAuditErrorContext");
+            m.setAccessible(true);
+            MDC.put(LoggingConstants.MDCKeys.STATUS_CODE, "STATUS_CODE");
+            MDC.put(LoggingConstants.MDCKeys.RESPONSE_CODE, "RESPONSE_CODE");
+            MDC.put(LoggingConstants.MDCKeys.RESPONSE_DESCRIPTION, "RESPONSE_DESCRIPTION");
+            MDC.put(LoggingConstants.MDCKeys.CLASS_NAME, "CLASS_NAME");
+            m.invoke(null);
+            assertNull(MDC.get(LoggingConstants.MDCKeys.STATUS_CODE));
+            assertNull(MDC.get(LoggingConstants.MDCKeys.RESPONSE_CODE));
+            assertNull(MDC.get(LoggingConstants.MDCKeys.RESPONSE_DESCRIPTION));
+            assertNull(MDC.get(LoggingConstants.MDCKeys.CLASS_NAME));
+        } catch (Exception e) {
+            fail("Exception invoking cleanAuditErrorLogContext: " + e.toString());
+        }
+    }
+
+    @Test
+    public void testPopulateErrorLogContext() {
+        try {
+            Class<?>[] paramString = { String.class, String.class, String.class, String.class, String.class };
+            Method m = LoggingUtils.class.getDeclaredMethod("populateErrorLogContext", paramString);
+            m.setAccessible(true);
+            m.invoke(null, "ERROR_CODE", "ERROR_DESCRIPTION", "TARGET_ENTITY", "TARGET_SERVICENAME", "CLASS_NAME");
+            assertEquals("CLASS_NAME", MDC.get(LoggingConstants.MDCKeys.CLASS_NAME));
+        } catch (Exception e) {
+            fail("Exception invoking populateErrorLogContext: " + e.toString());
+        }
+    }
+
+    @Test
+    public void testCleanErrorLogContext() {
+        try {
+            Method m = LoggingUtils.class.getDeclaredMethod("cleanErrorLogContext");
+            m.setAccessible(true);
+            MDC.put(LoggingConstants.MDCKeys.CLASS_NAME, "CLASS_NAME");
+            m.invoke(null);
+            assertNull(MDC.get(LoggingConstants.MDCKeys.CLASS_NAME));
+        } catch (Exception e) {
+            fail("Exception invoking cleanErrorLogContext: " + e.toString());
+        }
+    }
+
+    @Test
+    public void testPopulateMetricLogContext() {
+        try {
+            Class<?>[] paramString = { Instant.class, Instant.class, String.class, String.class, String.class,
+                    String.class, String.class, String.class };
+            Method m = LoggingUtils.class.getDeclaredMethod("populateMetricLogContext", paramString);
+            m.setAccessible(true);
+            java.util.Date timestamp = new java.util.Date();
+            m.invoke(null, timestamp.toInstant(), timestamp.toInstant(), "TARGET_ENTITY", "TARGET_SERVICE_NAME", "STATUS_CODE", "RESPONSE_CODE", "RESPONSE_DESCRIPTION", "CLASS_NAME");
+            assertEquals("STATUS_CODE", MDC.get(LoggingConstants.MDCKeys.STATUS_CODE));
+            assertEquals("RESPONSE_CODE", MDC.get(LoggingConstants.MDCKeys.RESPONSE_CODE));
+            assertEquals("RESPONSE_DESCRIPTION", MDC.get(LoggingConstants.MDCKeys.RESPONSE_DESCRIPTION));
+        } catch (Exception e) {
+            fail("Exception invoking populateMetricLogContext: " + e.toString());
+        }
+    }
+
+    @Test
+    public void testCleanMetricContext() {
+        try {
+            Method m = LoggingUtils.class.getDeclaredMethod("cleanMetricContext");
+            m.setAccessible(true);
+            MDC.put(LoggingConstants.MDCKeys.CLASS_NAME, "CLASS_NAME");
+            m.invoke(null);
+            assertNull(MDC.get(LoggingConstants.MDCKeys.CLASS_NAME));
+        } catch (Exception e) {
+            fail("Exception invoking cleanMetricContext: " + e.toString());
+        }
+    }
+
+    @Test
+    public void testPopulateTargetContext() {
+        try {
+            Class<?>[] paramString = { String.class, String.class };
+            Method m = LoggingUtils.class.getDeclaredMethod("populateTargetContext", paramString);
+            m.setAccessible(true);
+            m.invoke(null, "TARGET_ENTITY", "TARGET_SERVICE_NAME");
+            assertEquals("TARGET_ENTITY", MDC.get(LoggingConstants.MDCKeys.TARGET_ENTITY));
+            assertEquals("TARGET_SERVICE_NAME", MDC.get(LoggingConstants.MDCKeys.TARGET_SERVICE_NAME));
+        } catch (Exception e) {
+            fail("Exception invoking populateTargetContext: " + e.toString());
+        }
+    }
+
+    @Test
+    public void testCleanTargetContext() {
+        try {
+            Method m = LoggingUtils.class.getDeclaredMethod("cleanTargetContext");
+            m.setAccessible(true);
+            MDC.put(LoggingConstants.MDCKeys.TARGET_ENTITY, "TARGET_ENTITY");
+            MDC.put(LoggingConstants.MDCKeys.TARGET_SERVICE_NAME, "TARGET_SERVICE_NAME");
+            m.invoke(null);
+            assertNull(MDC.get(LoggingConstants.MDCKeys.TARGET_ENTITY));
+            assertNull(MDC.get(LoggingConstants.MDCKeys.TARGET_SERVICE_NAME));
+        } catch (Exception e) {
+            fail("Exception invoking cleanTargetContext: " + e.toString());
+        }
+    }
+
+    @Test
+    public void testPopulateTimeContext() {
+        try {
+            Class<?>[] paramString = { Instant.class, Instant.class };
+            Method m = LoggingUtils.class.getDeclaredMethod("populateTimeContext", paramString);
+            m.setAccessible(true);
+            java.util.Date timestamp = new java.util.Date();
+            m.invoke(null, timestamp.toInstant(), timestamp.toInstant());
+        } catch (Exception e) {
+            fail("Exception invoking populateTimeContext: " + e.toString());
+        }
+    }
+
+    @Test
+    public void testGenerateTimestampStr() {
+        try {
+            Class<?>[] paramString = { Instant.class };
+            Method m = LoggingUtils.class.getDeclaredMethod("generateTimestampStr", paramString);
+            m.setAccessible(true);
+            java.util.Date timestamp = new java.util.Date();
+            assertNotNull((String) m.invoke(null, timestamp.toInstant()));
+        } catch (Exception e) {
+            fail("Exception invoking testGenerateTimestampStr: " + e.toString());
+        }
+
+    }
+
+    @Test
+    public void testCleanTimeContext() {
+        try {
+            Method m = LoggingUtils.class.getDeclaredMethod("cleanTimeContext");
+            m.setAccessible(true);
+            MDC.put(LoggingConstants.MDCKeys.BEGIN_TIMESTAMP, "BEGIN_TIMESTAMP");
+            MDC.put(LoggingConstants.MDCKeys.END_TIMESTAMP, "END_TIMESTAMP");
+            MDC.put(LoggingConstants.MDCKeys.ELAPSED_TIME, "ELAPSED_TIME");
+            m.invoke(null);
+            assertNull(MDC.get(LoggingConstants.MDCKeys.BEGIN_TIMESTAMP));
+            assertNull(MDC.get(LoggingConstants.MDCKeys.END_TIMESTAMP));
+            assertNull(MDC.get(LoggingConstants.MDCKeys.ELAPSED_TIME));
+        } catch (Exception e) {
+            fail("Exception invoking cleanErrorContext: " + e.toString());
+        }
+    }
+
+    @Test
+    public void testPopulateResponseContext() {
+        try {
+            Class<?>[] paramString = { String.class, String.class, String.class };
+            Method m = LoggingUtils.class.getDeclaredMethod("populateResponseContext", paramString);
+            m.setAccessible(true);
+            m.invoke(null, "STATUS_CODE", "RESPONSE_CODE", "RESPONSE_DESCRIPTION");
+            assertEquals("STATUS_CODE", MDC.get(LoggingConstants.MDCKeys.STATUS_CODE));
+            assertEquals("RESPONSE_CODE", MDC.get(LoggingConstants.MDCKeys.RESPONSE_CODE));
+            assertEquals("RESPONSE_DESCRIPTION", MDC.get(LoggingConstants.MDCKeys.RESPONSE_DESCRIPTION));
+        } catch (Exception e) {
+            fail("Exception invoking populateResponseContext: " + e.toString());
+        }
+    }
+
+    @Test
+    public void testCleanResponseContext() {
+        try {
+            Method m = LoggingUtils.class.getDeclaredMethod("cleanResponseContext");
+            m.setAccessible(true);
+            MDC.put(LoggingConstants.MDCKeys.STATUS_CODE, "STATUS_CODE");
+            MDC.put(LoggingConstants.MDCKeys.RESPONSE_CODE, "RESPONSE_CODE");
+            MDC.put(LoggingConstants.MDCKeys.RESPONSE_DESCRIPTION, "RESPONSE_DESCRIPTION");
+            m.invoke(null);
+            assertNull(MDC.get(LoggingConstants.MDCKeys.STATUS_CODE));
+            assertNull(MDC.get(LoggingConstants.MDCKeys.RESPONSE_CODE));
+            assertNull(MDC.get(LoggingConstants.MDCKeys.RESPONSE_DESCRIPTION));
+        } catch (Exception e) {
+            fail("Exception invoking cleanErrorContext: " + e.toString());
+        }
+    }
+
+    @Test
+    public void testPopulateErrorContext() {
+        try {
+            Class<?>[] paramString = { String.class, String.class };
+            Method m = LoggingUtils.class.getDeclaredMethod("populateErrorContext", paramString);
+            m.setAccessible(true);
+            m.invoke(null, "ERROR_CODE", "ERROR_DESCRIPTION");
+            assertEquals("ERROR_CODE", MDC.get(LoggingConstants.MDCKeys.ERROR_CODE));
+            assertEquals("ERROR_DESCRIPTION", MDC.get(LoggingConstants.MDCKeys.ERROR_DESCRIPTION));
+        } catch (Exception e) {
+            fail("Exception invoking populateErrorContext: " + e.toString());
+        }
+    }
+
+    @Test
+    public void testCleanErrorContext() {
+        try {
+            Method m = LoggingUtils.class.getDeclaredMethod("cleanErrorContext");
+            m.setAccessible(true);
+            MDC.put(LoggingConstants.MDCKeys.ERROR_CODE, "ERROR_CODE");
+            MDC.put(LoggingConstants.MDCKeys.ERROR_DESCRIPTION, "ERROR_DESCRIPTION");
+            m.invoke(null);
+            assertNull(MDC.get(LoggingConstants.MDCKeys.ERROR_CODE));
+            assertNull(MDC.get(LoggingConstants.MDCKeys.ERROR_DESCRIPTION));
+        } catch (Exception e) {
+            fail("Exception invoking cleanErrorContext: " + e.toString());
+        }
+    }
+
+}
diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/metadata/impl/MetadataServiceImplTest.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/metadata/impl/MetadataServiceImplTest.java
new file mode 100644
index 000000000..90ad524b2
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/metadata/impl/MetadataServiceImplTest.java
@@ -0,0 +1,137 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2018 Nokia Solutions and Networks
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.appc.metadata.impl;
+
+import static org.junit.Assert.assertEquals;
+import static org.mockito.Matchers.any;
+import static org.mockito.Matchers.anyString;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import java.sql.SQLException;
+import java.util.ArrayList;
+import javax.sql.rowset.CachedRowSet;
+import org.junit.Before;
+import org.junit.Test;
+import org.onap.appc.cache.MetadataCache;
+import org.onap.appc.metadata.objects.DependencyModelIdentifier;
+import org.onap.ccsdk.sli.core.dblib.DbLibService;
+
+public class MetadataServiceImplTest {
+
+
+    private MetadataServiceImpl metadataService = new MetadataServiceImpl();
+    private DbLibService mockDbLibService = mock(DbLibService.class);
+    private CachedRowSet mockCachedRowSet = mock(CachedRowSet.class);
+    private MetadataCache<DependencyModelIdentifier, String> mockCache = mock(MetadataCache.class);
+    private DependencyModelIdentifier mockModelIdentifier = mock(DependencyModelIdentifier.class);
+
+    @Before
+    public void setup() throws SQLException {
+        metadataService.setDbLibService(mockDbLibService);
+        metadataService.setCache(mockCache);
+    }
+
+    @Test
+    public void getVnfModel_should_return_vnfModel_when_present_in_cache() throws SQLException {
+        when(mockCache.getObject(mockModelIdentifier)).thenReturn("test-vnf-model");
+
+        assertEquals("test-vnf-model", metadataService.getVnfModel(mockModelIdentifier));
+
+        verify(mockCache).getObject(mockModelIdentifier);
+        verify(mockDbLibService, never()).getData(anyString(), any(ArrayList.class), anyString());
+        verify(mockCache, never()).putObject(any(DependencyModelIdentifier.class), anyString());
+    }
+
+    @Test
+    public void getVnfModel_should_read_from_database_when_null_vnfName_and_return_when_found()
+        throws SQLException {
+
+        when(mockCache.getObject(any(DependencyModelIdentifier.class))).thenReturn(null);
+        when(mockModelIdentifier.getCatalogVersion()).thenReturn("test-vnf-catalog-version");
+        when(mockDbLibService.getData(anyString(), any(ArrayList.class), anyString())).thenReturn(mockCachedRowSet);
+        when(mockCachedRowSet.first()).thenReturn(true);
+        when(mockCachedRowSet.getString("ARTIFACT_CONTENT")).thenReturn("test-vnf-model");
+
+        assertEquals("test-vnf-model", metadataService.getVnfModel(mockModelIdentifier));
+
+        verify(mockDbLibService).getData(anyString(), any(ArrayList.class), anyString());
+        verify(mockCachedRowSet).getString("ARTIFACT_CONTENT");
+        verify(mockCache).putObject(mockModelIdentifier, "test-vnf-model");
+    }
+
+    @Test(expected = RuntimeException.class)
+    public void getVnfModel_should_read_from_database_when_null_vnfName_and_throw_when_invalid_dependency_model()
+        throws SQLException {
+
+        when(mockCache.getObject(any(DependencyModelIdentifier.class))).thenReturn(null);
+        when(mockModelIdentifier.getCatalogVersion()).thenReturn(null);
+
+        when(mockDbLibService.getData(anyString(), any(ArrayList.class), anyString())).thenReturn(mockCachedRowSet);
+        when(mockCachedRowSet.first()).thenReturn(true);
+        when(mockCachedRowSet.getString("ARTIFACT_CONTENT")).thenReturn(null);
+
+        assertEquals(null, metadataService.getVnfModel(mockModelIdentifier));
+
+        verify(mockDbLibService).getData(anyString(), any(ArrayList.class), anyString());
+        verify(mockCachedRowSet).getString("ARTIFACT_CONTENT");
+        verify(mockCache, never()).putObject(mockModelIdentifier, "test-vnf-model");
+
+    }
+
+    @Test(expected = RuntimeException.class)
+    public void getVnfModel_should_read_from_database_when_null_vnfName_and_throw_when_database_error()
+        throws SQLException {
+
+        when(mockCache.getObject(any(DependencyModelIdentifier.class))).thenReturn(null);
+        when(mockModelIdentifier.getCatalogVersion()).thenReturn(null);
+        when(mockDbLibService.getData(anyString(), any(ArrayList.class), anyString())).thenThrow(new SQLException());
+
+        assertEquals(null, metadataService.getVnfModel(mockModelIdentifier));
+
+        verify(mockDbLibService).getData(anyString(), any(ArrayList.class), anyString());
+        verify(mockCachedRowSet, times(0)).getString("ARTIFACT_CONTENT");
+        verify(mockCache, never()).putObject(any(DependencyModelIdentifier.class), anyString());
+    }
+
+
+    @Test
+    public void getVnfModel_should_read_from_database_when_null_vnfName_and_return_null_when_not_found()
+        throws SQLException {
+
+        when(mockCache.getObject(any(DependencyModelIdentifier.class))).thenReturn(null);
+        when(mockModelIdentifier.getCatalogVersion()).thenReturn(null);
+        when(mockDbLibService.getData(anyString(), any(ArrayList.class), anyString())).thenReturn(mockCachedRowSet);
+        when(mockCachedRowSet.first()).thenReturn(false);
+
+        assertEquals(null, metadataService.getVnfModel(mockModelIdentifier));
+
+        verify(mockDbLibService).getData(anyString(), any(ArrayList.class), anyString());
+        verify(mockCachedRowSet, times(0)).getString("ARTIFACT_CONTENT");
+        verify(mockCache, never()).putObject(any(DependencyModelIdentifier.class), anyString());
+    }
+
+}
diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/metadata/objects/DependencyModelIdentifierTest.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/metadata/objects/DependencyModelIdentifierTest.java
new file mode 100644
index 000000000..f9aae99f5
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/metadata/objects/DependencyModelIdentifierTest.java
@@ -0,0 +1,105 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2017 Amdocs
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.appc.metadata.objects;
+
+import static org.onap.appc.metadata.objects.DependencyModelIdentifier.prime;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.powermock.reflect.Whitebox;
+
+public class DependencyModelIdentifierTest {
+    private static final String vnfType = "vnfType";
+    private static final String vnfType2 = "vnfType2";
+    private static final String cVersion = "catalogVersion";
+    private DependencyModelIdentifier identifier;
+    private DependencyModelIdentifier identifier1;
+    private DependencyModelIdentifier identifier2;
+    private DependencyModelIdentifier identifier3;
+
+    @Before
+    public void setUp() throws Exception {
+        identifier = new DependencyModelIdentifier(vnfType, cVersion);
+        identifier1 = new DependencyModelIdentifier(null, null);
+        identifier2 = new DependencyModelIdentifier(vnfType, null);
+        identifier3 = new DependencyModelIdentifier(null, cVersion);
+    }
+
+    @Test
+    public void testConstructorAndGetterAndToString() throws Exception {
+        Assert.assertEquals(vnfType, Whitebox.getInternalState(identifier, "vnfType"));
+        Assert.assertEquals(cVersion, Whitebox.getInternalState(identifier, "catalogVersion"));
+
+        Assert.assertEquals(vnfType, identifier.getVnfType());
+        Assert.assertEquals(cVersion, identifier.getCatalogVersion());
+
+        Assert.assertEquals(
+                String.format(DependencyModelIdentifier.TO_STRING_FORMAT, vnfType, cVersion),
+                identifier.toString());
+    }
+
+    @Test
+    public void testHashCode() throws Exception {
+        Assert.assertEquals((prime + vnfType.hashCode()) * prime + cVersion.hashCode(),
+                identifier.hashCode());
+        Assert.assertEquals(prime * prime, identifier1.hashCode());
+        Assert.assertEquals((prime + vnfType.hashCode()) * prime, identifier2.hashCode());
+        Assert.assertEquals(prime * prime + cVersion.hashCode(), identifier3.hashCode());
+    }
+
+    @Test
+    public void testEquals() throws Exception {
+        // other object is null
+        Assert.assertFalse(identifier.equals(null));
+        // other object is wrong data type
+        Assert.assertFalse(identifier.equals("abc"));
+
+        // my vnfType is null
+        Assert.assertFalse(identifier1.equals(identifier));
+        // different vnfType
+        DependencyModelIdentifier identifier4 = new DependencyModelIdentifier(vnfType2, cVersion);
+        Assert.assertFalse(identifier.equals(identifier4));
+        // same vnfType, my catalogVerson is null
+        Assert.assertFalse(identifier2.equals(identifier));
+        // same vnfType and both catalogVersion are null
+        identifier4 = new DependencyModelIdentifier(vnfType, null);
+        Assert.assertTrue(identifier2.equals(identifier4));
+
+        Assert.assertFalse(identifier.equals(identifier1));
+        Assert.assertFalse(identifier.equals(identifier2));
+        Assert.assertFalse(identifier.equals(identifier3));
+
+        Assert.assertFalse(identifier2.equals(identifier1));
+        Assert.assertFalse(identifier2.equals(identifier3));
+
+
+        Assert.assertFalse(identifier3.equals(identifier));
+        Assert.assertFalse(identifier3.equals(identifier1));
+        Assert.assertFalse(identifier3.equals(identifier2));
+
+        identifier4 = new DependencyModelIdentifier(vnfType, cVersion);
+        Assert.assertTrue(identifier.equals(identifier4));
+    }
+
+}
diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/pool/CachedElementTest.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/pool/CachedElementTest.java
new file mode 100644
index 000000000..02bdd3be3
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/pool/CachedElementTest.java
@@ -0,0 +1,275 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2017 Amdocs
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * ============LICENSE_END=========================================================
+ */
+
+
+
+package org.onap.appc.pool;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
+
+import java.io.IOException;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.onap.appc.pool.Allocator;
+import org.onap.appc.pool.CachedElement;
+import org.onap.appc.pool.Destructor;
+import org.onap.appc.pool.Pool;
+import org.onap.appc.pool.PoolDrainedException;
+import org.onap.appc.pool.PoolExtensionException;
+import org.onap.appc.pool.PoolSpecificationException;
+import org.onap.appc.pool.*;
+
+
+public class CachedElementTest implements Allocator<Testable>, Destructor<Testable> {
+    private static final int MIN = 10;
+    private static final int MAX = 100;
+    private Pool<Testable> pool;
+    private int index = 0;
+    private int destroyCount = 0;
+
+    /**
+     * setup
+     *
+     * @throws PoolSpecificationException
+     *             If the minimum size is less than 0, or if the max size is non-zero and less than the min size.
+     */
+    @Before
+    public void setup() throws PoolSpecificationException {
+        pool = new Pool<>(MIN, MAX);
+    }
+
+    /**
+     * Test state
+     */
+    @Test
+    public void testAllocator() {
+        assertNull(pool.getAllocator());
+        pool.setAllocator(this);
+        assertNotNull(pool.getAllocator());
+    }
+
+    /**
+     * Test state
+     */
+    @Test
+    public void testDestructor() {
+        assertNull(pool.getDestructor());
+        pool.setDestructor(this);
+        assertNotNull(pool.getDestructor());
+    }
+
+    /**
+     * Test that we can allocate and release elements and that the pool maintains them in MRU order
+     *
+     * @throws PoolExtensionException
+     *             If the pool cannot be extended
+     * @throws PoolDrainedException
+     *             If the caller is trying to reserve an element from a drained pool
+     */
+    @Test
+    public void testAllocateAndRelease() throws PoolExtensionException, PoolDrainedException {
+        pool.setAllocator(this);
+
+        assertFalse(pool.isDrained());
+
+        /*
+         * Allocate three elements
+         */
+        Testable value1 = pool.reserve();
+        assertNotNull(value1);
+        assertEquals(Integer.valueOf(MIN - 1), Integer.valueOf(value1.getId()));
+        assertEquals(1, pool.getAllocatedSize());
+        assertEquals(MIN - 1, pool.getFreeSize());
+        assertEquals(1, pool.getAllocatedSize());
+
+        Testable value2 = pool.reserve();
+        assertNotNull(value2);
+        assertEquals(Integer.valueOf(MIN - 2), Integer.valueOf(value2.getId()));
+        assertEquals(2, pool.getAllocatedSize());
+        assertEquals(MIN - 2, pool.getFreeSize());
+        assertEquals(2, pool.getAllocatedSize());
+
+        Testable value3 = pool.reserve();
+        assertNotNull(value3);
+        assertEquals(Integer.valueOf(MIN - 3), Integer.valueOf(value3.getId()));
+        assertEquals(3, pool.getAllocatedSize());
+        assertEquals(MIN - 3, pool.getFreeSize());
+        assertEquals(3, pool.getAllocatedSize());
+
+        /*
+         * Now, release them in the order obtained
+         */
+        pool.release(value1);
+        pool.release(value2);
+        pool.release(value3);
+
+        assertEquals(0, pool.getAllocatedSize());
+        assertEquals(MIN, pool.getFreeSize());
+
+        /*
+         * Now, allocate them again, but their values should be reversed (3, 2, 1) representing the most recently used
+         * to the least recently used.
+         */
+        value1 = pool.reserve();
+        assertNotNull(value1);
+        assertEquals(Integer.valueOf(MIN - 3), Integer.valueOf(value1.getId()));
+
+        value2 = pool.reserve();
+        assertNotNull(value2);
+        assertEquals(Integer.valueOf(MIN - 2), Integer.valueOf(value2.getId()));
+
+        value3 = pool.reserve();
+        assertNotNull(value3);
+        assertEquals(Integer.valueOf(MIN - 1), Integer.valueOf(value3.getId()));
+    }
+
+    /**
+     * Test that we can trim the pool to a desired size
+     *
+     * @throws PoolDrainedException
+     *             If the caller is trying to release or reserve an element from a drained pool
+     * @throws PoolExtensionException
+     *             If the pool cannot be extended
+     * @throws IllegalAccessException
+     *             if this Method object is enforcing Java language access control and the underlying method is
+     *             inaccessible.
+     * @throws IllegalArgumentException
+     *             if the method is an instance method and the specified object argument is not an instance of the class
+     *             or interface declaring the underlying method (or of a subclass or implementor thereof); if the number
+     *             of actual and formal parameters differ; if an unwrapping conversion for primitive arguments fails; or
+     *             if, after possible unwrapping, a parameter value cannot be converted to the corresponding formal
+     *             parameter type by a method invocation conversion.
+     * @throws InvocationTargetException
+     *             if the underlying method throws an exception.
+     * @throws SecurityException
+     *             If a security manager, s, is present and any of the following conditions is met:
+     *             <ul>
+     *             <li>invocation of s.checkMemberAccess(this, Member.DECLARED) denies access to the declared method</li>
+     *             <li>the caller's class loader is not the same as or an ancestor of the class loader for the current
+     *             class and invocation of s.checkPackageAccess() denies access to the package of this class</li>
+     *             </ul>
+     * @throws NoSuchMethodException
+     *             if a matching method is not found.
+     */
+    @SuppressWarnings("nls")
+    @Test
+    public void testTrim() throws IllegalAccessException, IllegalArgumentException, InvocationTargetException,
+        PoolDrainedException, PoolExtensionException, NoSuchMethodException, SecurityException {
+
+        pool.setAllocator(this);
+        int SIZE = 50;
+        Testable[] array = new Testable[SIZE];
+
+        assertEquals(0, pool.getAllocatedSize());
+        for (int i = 0; i < SIZE; i++) {
+            array[i] = pool.reserve();
+        }
+        assertEquals(SIZE, pool.getAllocatedSize());
+
+        for (int i = 0; i < SIZE; i++) {
+            pool.release(array[i]);
+        }
+        assertEquals(0, pool.getAllocatedSize());
+
+        assertEquals(SIZE, pool.getFreeSize());
+
+        Method trimMethod = Pool.class.getDeclaredMethod("trim", new Class[] {
+            Integer.TYPE
+        });
+        trimMethod.setAccessible(true);
+        trimMethod.invoke(pool, new Object[] {
+            SIZE - MIN
+        });
+
+        assertEquals(MIN, pool.getFreeSize());
+    }
+
+    /**
+     * Test that we can drain a pool containing a mix of free and allocated elements
+     *
+     * @throws PoolDrainedException
+     *             If the caller is trying to release or reserve an element from a drained pool
+     * @throws PoolExtensionException
+     *             If the pool cannot be extended
+     * @throws IOException
+     *             if an I/O error occurs
+     */
+    @Test
+    public void testDrain() throws PoolExtensionException, PoolDrainedException, IOException {
+        int SIZE = 50;
+        int FREE = 20;
+        int ALLOC = SIZE - FREE;
+
+        Testable[] array = new Testable[SIZE];
+        pool.setAllocator(this);
+        pool.setDestructor(this);
+
+        assertFalse(pool.isDrained());
+
+        assertEquals(0, pool.getAllocatedSize());
+        for (int i = 0; i < SIZE; i++) {
+            array[i] = pool.reserve();
+        }
+        assertEquals(SIZE, pool.getAllocatedSize());
+
+        for (int i = 0; i < FREE; i++) {
+            array[i].close();
+        }
+        assertEquals(ALLOC, pool.getAllocatedSize());
+        assertEquals(FREE, pool.getFreeSize());
+
+        pool.drain();
+        assertEquals(0, pool.getFreeSize());
+        assertEquals(0, pool.getAllocatedSize());
+        assertTrue(pool.isDrained());
+
+        assertEquals(SIZE, destroyCount);
+    }
+
+    /**
+     * @see org.onap.appc.pool.Allocator#allocate(org.onap.appc.pool.Pool)
+     */
+    @Override
+    public Testable allocate(Pool<Testable> pool) {
+        Testable element = new Element(index++);
+        Testable ce = CachedElement.newInstance(pool, element, new Class[] {
+            Testable.class
+        });
+        return ce;
+    }
+
+    /**
+     * @see org.onap.appc.pool.Destructor#destroy(java.io.Closeable, org.onap.appc.pool.Pool)
+     */
+    @Override
+    public void destroy(Testable obj, Pool<Testable> pool) {
+        destroyCount++;
+    }
+}
diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/pool/Element.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/pool/Element.java
new file mode 100644
index 000000000..14f3e0e15
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/pool/Element.java
@@ -0,0 +1,77 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2017 Amdocs
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * ============LICENSE_END=========================================================
+ */
+
+
+
+package org.onap.appc.pool;
+
+import java.io.IOException;
+
+public class Element implements Testable {
+    private boolean closed;
+    private Integer id;
+
+    public Element(int id) {
+        this.id = Integer.valueOf(id);
+        closed = false;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        boolean result = false;
+        if (obj instanceof Element) {
+            Element other = (Element) obj;
+            result = this.id.equals(other.id);
+        }
+
+        return result;
+    }
+
+    @Override
+    public int hashCode() {
+        return id.hashCode();
+    }
+
+    /**
+     * @see java.io.Closeable#close()
+     */
+    @Override
+    public void close() throws IOException {
+        closed = true;
+    }
+
+    @Override
+    public Boolean isClosed() {
+        return Boolean.valueOf(closed);
+    }
+
+    @Override
+    public String toString() {
+        return Integer.toString(id);
+    }
+
+    @Override
+    public Integer getId() {
+        return id;
+    }
+}
diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/pool/PoolDrainedExceptionTest.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/pool/PoolDrainedExceptionTest.java
new file mode 100644
index 000000000..c7b03f33c
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/pool/PoolDrainedExceptionTest.java
@@ -0,0 +1,36 @@
+/*-

+* ============LICENSE_START=======================================================

+* ONAP : APPC

+* ================================================================================

+* Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.

+* =============================================================================

+* Licensed under the Apache License, Version 2.0 (the "License");

+* you may not use this file except in compliance with the License.

+* You may obtain a copy of the License at

+*

+*      http://www.apache.org/licenses/LICENSE-2.0

+*

+* Unless required by applicable law or agreed to in writing, software

+* distributed under the License is distributed on an "AS IS" BASIS,

+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

+* See the License for the specific language governing permissions and

+* limitations under the License.

+* ============LICENSE_END=========================================================

+*/

+package org.onap.appc.pool;

+

+import org.junit.Assert;

+

+import org.junit.Test;

+

+public class PoolDrainedExceptionTest {

+

+    @Test

+    public void testPoolDrainedException() {

+        String message = "test message";

+        PoolDrainedException poolDrainedExp = new PoolDrainedException(message);

+        Assert.assertEquals(message, poolDrainedExp.getMessage());

+        Assert.assertEquals(message, poolDrainedExp.getLocalizedMessage());

+    }

+

+}

diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/pool/PoolExceptionTest.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/pool/PoolExceptionTest.java
new file mode 100644
index 000000000..34ecd85e0
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/pool/PoolExceptionTest.java
@@ -0,0 +1,73 @@
+/*-

+* ============LICENSE_START=======================================================

+* ONAP : APPC

+* ================================================================================

+* Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.

+* =============================================================================

+* Licensed under the Apache License, Version 2.0 (the "License");

+* you may not use this file except in compliance with the License.

+* You may obtain a copy of the License at

+*

+*      http://www.apache.org/licenses/LICENSE-2.0

+*

+* Unless required by applicable law or agreed to in writing, software

+* distributed under the License is distributed on an "AS IS" BASIS,

+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

+* See the License for the specific language governing permissions and

+* limitations under the License.

+* ============LICENSE_END=========================================================

+*/

+package org.onap.appc.pool;

+

+import org.junit.Assert;

+

+import org.junit.Test;

+

+public class PoolExceptionTest {

+

+    @Test

+    public void testPoolException() {

+        PoolException poolException = new PoolException();

+        Assert.assertTrue(poolException.getCause() == null);

+        Assert.assertTrue(poolException.getMessage() == null);

+    }

+

+    @Test

+    public void testPoolExceptionString() {

+        String message = "test message";

+        PoolException poolException = new PoolException(message);

+        Assert.assertEquals(message, poolException.getMessage());

+        Assert.assertEquals(message, poolException.getLocalizedMessage());

+    }

+

+    @Test

+    public void testPoolExceptionThrowable() {

+        String tMessage = "throwable message";

+        Throwable throwable = new Throwable(tMessage);

+        PoolException poolException = new PoolException(throwable);

+        Assert.assertEquals(throwable, poolException.getCause());

+    }

+

+    @Test

+    public void testPoolExceptionStringThrowable() {

+        String message = "my test message";

+        String tMessage = "throwable message";

+        Throwable throwable = new Throwable(tMessage);

+        PoolException poolException = new PoolException(message, throwable);

+        Assert.assertEquals(throwable, poolException.getCause());

+        Assert.assertTrue(poolException.getMessage().contains(message));

+        Assert.assertEquals(message, poolException.getLocalizedMessage());

+    }

+

+    @Test

+    public void testPoolExceptionStringThrowableBooleanBoolean() {

+        String message = "my test message";

+        String tMessage = "throwable message";

+        Throwable throwable = new Throwable(tMessage);

+        PoolException poolException = new PoolException(message, throwable, true, true);

+        Assert.assertEquals(throwable, poolException.getCause());

+        Assert.assertTrue(poolException.getMessage().contains(message));

+        Assert.assertEquals(message, poolException.getLocalizedMessage());

+    }

+

+}

diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/pool/PoolExtensionExceptionTest.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/pool/PoolExtensionExceptionTest.java
new file mode 100644
index 000000000..615233d74
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/pool/PoolExtensionExceptionTest.java
@@ -0,0 +1,36 @@
+/*-

+* ============LICENSE_START=======================================================

+* ONAP : APPC

+* ================================================================================

+* Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.

+* =============================================================================

+* Licensed under the Apache License, Version 2.0 (the "License");

+* you may not use this file except in compliance with the License.

+* You may obtain a copy of the License at

+*

+*      http://www.apache.org/licenses/LICENSE-2.0

+*

+* Unless required by applicable law or agreed to in writing, software

+* distributed under the License is distributed on an "AS IS" BASIS,

+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

+* See the License for the specific language governing permissions and

+* limitations under the License.

+* ============LICENSE_END=========================================================

+*/

+package org.onap.appc.pool;

+

+import org.junit.Assert;

+

+import org.junit.Test;

+

+public class PoolExtensionExceptionTest {

+

+    @Test

+    public void testPoolExtensionException() {

+        String message = "test message";

+        PoolExtensionException poolExtExcpt = new PoolExtensionException(message);

+        Assert.assertEquals(message, poolExtExcpt.getMessage());

+        Assert.assertEquals(message, poolExtExcpt.getLocalizedMessage());

+    }

+

+}

diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/pool/PoolTest.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/pool/PoolTest.java
new file mode 100644
index 000000000..d61296ac6
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/pool/PoolTest.java
@@ -0,0 +1,332 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2017 Amdocs
+ * =============================================================================
+ * Modifications Copyright (C) 2018 IBM.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * ============LICENSE_END=========================================================
+ */
+
+
+
+package org.onap.appc.pool;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
+
+import java.io.IOException;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.lang.reflect.Proxy;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.onap.appc.pool.Allocator;
+import org.onap.appc.pool.Destructor;
+import org.onap.appc.pool.Pool;
+import org.onap.appc.pool.PoolDrainedException;
+import org.onap.appc.pool.PoolExtensionException;
+import org.onap.appc.pool.PoolSpecificationException;
+import org.onap.appc.pool.*;
+
+
+public class PoolTest implements Allocator<Testable>, Destructor<Testable> {
+
+    private Pool<Testable> pool;
+    private static final int MIN = 10;
+    private static final int MAX = 100;
+    private int index = 0;
+    private int destroyCount = 0;
+
+    /**
+     * Set up the test by allocating a pool with MIN-MAX size (bounded pool)
+     *
+     * @throws PoolSpecificationException
+     *             If the minimum size is less than 0, or if the max size is non-zero and less than the min size.
+     */
+    @Before
+    public void setup() throws PoolSpecificationException {
+        pool = new Pool<>(MIN, MAX);
+        index = 0;
+        destroyCount = 0;
+    }
+
+    /**
+     * Test that trying to construct a pool with a bad minimum throws an exception
+     *
+     * @throws PoolSpecificationException
+     *             If the minimum size is less than 0, or if the max size is non-zero and less than the min size.
+     */
+    @Test(expected = PoolSpecificationException.class)
+    public void testInvalidMinSize() throws PoolSpecificationException {
+        pool = new Pool<>(-1, MAX);
+    }
+
+    /**
+     * Test that trying to construct a pool with a bad maximum throws an exception
+     *
+     * @throws PoolSpecificationException
+     *             If the minimum size is less than 0, or if the max size is non-zero and less than the min size.
+     */
+    @Test(expected = PoolSpecificationException.class)
+    public void testInvalidMaxSize() throws PoolSpecificationException {
+        pool = new Pool<>(MIN, -1);
+    }
+
+    /**
+     * Test creation of a pool where max is less than min fails
+     *
+     * @throws PoolSpecificationException
+     *             If the minimum size is less than 0, or if the max size is non-zero and less than the min size.
+     */
+    @Test(expected = PoolSpecificationException.class)
+    public void testInvalidSizeRange() throws PoolSpecificationException {
+        pool = new Pool<>(MAX, MIN);
+    }
+
+    /**
+     * Test state
+     */
+    @Test
+    public void testMinPool() {
+        assertEquals(MIN, pool.getMinPool());
+    }
+
+    /**
+     * Test state
+     */
+    @Test
+    public void testMaxPool() {
+        assertEquals(MAX, pool.getMaxPool());
+    }
+
+    /**
+     * Test state
+     */
+    @Test
+    public void testAllocator() {
+        assertNull(pool.getAllocator());
+        pool.setAllocator(this);
+        assertNotNull(pool.getAllocator());
+    }
+
+    /**
+     * Test state
+     */
+    @Test
+    public void testDestructor() {
+        assertNull(pool.getDestructor());
+        pool.setDestructor(this);
+        assertNotNull(pool.getDestructor());
+    }
+
+    /**
+     * Test that we can allocate and release elements and that the pool maintains them in MRU order
+     *
+     * @throws PoolExtensionException
+     *             If the pool cannot be extended
+     * @throws PoolDrainedException
+     *             If the caller is trying to reserve an element from a drained pool
+     */
+    @Test
+    public void testAllocateAndRelease() throws PoolExtensionException, PoolDrainedException {
+        pool.setAllocator(this);
+
+        assertFalse(pool.isDrained());
+
+        /*
+         * Allocate three elements
+         */
+        Testable value1 = pool.reserve();
+        assertNotNull(value1);
+        assertEquals(Integer.valueOf(MIN - 1), value1.getId());
+        assertEquals(1, pool.getAllocatedSize());
+        assertEquals(MIN - 1, pool.getFreeSize());
+        assertEquals(1, pool.getAllocatedSize());
+
+        Testable value2 = pool.reserve();
+        assertNotNull(value2);
+        assertEquals(Integer.valueOf(MIN - 2), value2.getId());
+        assertEquals(2, pool.getAllocatedSize());
+        assertEquals(MIN - 2, pool.getFreeSize());
+        assertEquals(2, pool.getAllocatedSize());
+
+        Testable value3 = pool.reserve();
+        assertNotNull(value3);
+        assertEquals(Integer.valueOf(MIN - 3), value3.getId());
+        assertEquals(3, pool.getAllocatedSize());
+        assertEquals(MIN - 3, pool.getFreeSize());
+        assertEquals(3, pool.getAllocatedSize());
+
+        /*
+         * Now, release them in the order obtained
+         */
+        pool.release(value1);
+        pool.release(value2);
+        pool.release(value3);
+
+        assertEquals(0, pool.getAllocatedSize());
+        assertEquals(MIN, pool.getFreeSize());
+
+        /*
+         * Now, allocate them again, but their values should be reversed (3, 2, 1) representing the most recently used
+         * to the least recently used.
+         */
+        value1 = pool.reserve();
+        assertNotNull(value1);
+        assertEquals(Integer.valueOf(MIN - 3), value1.getId());
+
+        value2 = pool.reserve();
+        assertNotNull(value2);
+        assertEquals(Integer.valueOf(MIN - 2), value2.getId());
+
+        value3 = pool.reserve();
+        assertNotNull(value3);
+        assertEquals(Integer.valueOf(MIN - 1), value3.getId());
+    }
+
+    /**
+     * Test that we can trim the pool to a desired size
+     *
+     * @throws PoolExtensionException
+     *             If the pool cannot be extended
+     * @throws NoSuchMethodException
+     *             if a matching method is not found.
+     * @throws SecurityException
+     *             if the request is denied.
+     * @throws IllegalAccessException
+     *             if this Method object is enforcing Java language access control and the underlying method is
+     *             inaccessible.
+     * @throws IllegalArgumentException
+     *             if the method is an instance method and the specified object argument is not an instance of the class
+     *             or interface declaring the underlying method (or of a subclass or implementor thereof); if the number
+     *             of actual and formal parameters differ; if an unwrapping conversion for primitive arguments fails; or
+     *             if, after possible unwrapping, a parameter value cannot be converted to the corresponding formal
+     *             parameter type by a method invocation conversion.
+     * @throws InvocationTargetException
+     *             if the underlying method throws an exception.
+     * @throws PoolDrainedException
+     *             If the caller is trying to reserve an element from a drained pool
+     */
+    @SuppressWarnings("nls")
+    @Test
+    public void testTrim() throws PoolExtensionException, NoSuchMethodException, SecurityException,
+        IllegalAccessException, IllegalArgumentException, InvocationTargetException, PoolDrainedException {
+        pool.setAllocator(this);
+        int SIZE = 50;
+        Proxy[] array = new Proxy[SIZE];
+
+        assertEquals(0, pool.getAllocatedSize());
+        for (int i = 0; i < SIZE; i++) {
+            array[i] = (Proxy) pool.reserve();
+        }
+        assertEquals(SIZE, pool.getAllocatedSize());
+
+        for (int i = 0; i < SIZE; i++) {
+            pool.release((Testable) array[i]);
+        }
+        assertEquals(0, pool.getAllocatedSize());
+
+        assertEquals(SIZE, pool.getFreeSize());
+
+        Method trimMethod = Pool.class.getDeclaredMethod("trim", new Class[] {
+            Integer.TYPE
+        });
+        trimMethod.setAccessible(true);
+        trimMethod.invoke(pool, new Object[] {
+            SIZE - MIN
+        });
+
+        assertEquals(MIN, pool.getFreeSize());
+    }
+
+    /**
+     * Test that we can drain a pool containing a mix of free and allocated elements
+     *
+     * @throws PoolExtensionException
+     *             If the pool cannot be extended
+     * @throws PoolDrainedException
+     *             If the caller is trying to reserve an element from a drained pool
+     */
+    @Test
+    public void testDrain() throws PoolExtensionException, PoolDrainedException {
+        int SIZE = 50;
+        int FREE = 20;
+        int ALLOC = SIZE - FREE;
+
+        Proxy[] array = new Proxy[SIZE];
+        pool.setAllocator(this);
+        pool.setDestructor(this);
+
+        assertFalse(pool.isDrained());
+
+        assertEquals(0, pool.getAllocatedSize());
+        for (int i = 0; i < SIZE; i++) {
+            array[i] = (Proxy) pool.reserve();
+        }
+        assertEquals(SIZE, pool.getAllocatedSize());
+
+        for (int i = 0; i < FREE; i++) {
+            pool.release((Testable) array[i]);
+        }
+        assertEquals(ALLOC, pool.getAllocatedSize());
+        assertEquals(FREE, pool.getFreeSize());
+
+        pool.drain();
+        assertEquals(0, pool.getFreeSize());
+        assertEquals(0, pool.getAllocatedSize());
+        assertTrue(pool.isDrained());
+
+        assertEquals(SIZE, destroyCount);
+    }
+
+    /**
+     * @see org.onap.appc.pool.Destructor#destroy(java.io.Closeable, org.onap.appc.pool.Pool)
+     */
+    @Override
+    public void destroy(Testable obj, Pool<Testable> pool) {
+        destroyCount++;
+        try {
+            obj.close();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    /**
+     * @see org.onap.appc.pool.Allocator#allocate(org.onap.appc.pool.Pool)
+     */
+    @Override
+    public Testable allocate(Pool<Testable> pool) {
+        Testable e = new Element(index++);
+
+        return e;
+    }
+    
+    @Test
+    public void testGetAndSetProperties() throws PoolSpecificationException
+    {
+        pool= new Pool<Testable>(3, 5);
+        pool.setProperty("key1", "value1");
+        assertEquals("value1", pool.getProperty("key1"));
+    }
+}
diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/pool/Testable.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/pool/Testable.java
new file mode 100644
index 000000000..22c940895
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/pool/Testable.java
@@ -0,0 +1,34 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2017 Amdocs
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.appc.pool;
+
+import java.io.Closeable;
+
+public interface Testable extends Closeable {
+
+    Integer getId();
+
+    Boolean isClosed();
+}
+
diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/util/JsonUtilTest.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/util/JsonUtilTest.java
new file mode 100644
index 000000000..9de45545c
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/util/JsonUtilTest.java
@@ -0,0 +1,122 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2017 Amdocs
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.appc.util;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.core.JsonParseException;
+import java.io.FileNotFoundException;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.Map;
+
+import static org.junit.Assert.*;
+
+
+public class JsonUtilTest {
+
+    @Test(expected = NullPointerException.class)
+    public void should_throw_exception_when_json_string_is_null() throws IOException {
+
+        JsonUtil.convertJsonStringToFlatMap(null);
+    }
+
+    @Test(expected = JsonParseException.class)
+    public void should_throw_exception_when_invalid_json_string() throws IOException {
+
+        JsonUtil.convertJsonStringToFlatMap("{key: value}");
+    }
+
+    @Test
+    public void should_convert_json_string_to_flat_map() throws IOException {
+
+        String jsonString = "{\"A\":\"A-value\",\"B\":{\"C\":\"B.C-value\",\"D\":\"B.D-value\"}}";
+        Map<String, String> flatMap = JsonUtil.convertJsonStringToFlatMap(jsonString);
+
+        Map<String, String> expectedMap = new HashMap<>();
+        expectedMap.put("A", "A-value");
+        expectedMap.put("B.C", "B.C-value");
+        expectedMap.put("B.D", "B.D-value");
+
+        assertEquals(expectedMap, flatMap);
+        assertNotNull(flatMap);
+    }
+
+    @Test
+    public void should_convert_json_string_to_flat_map_with_nested_json() throws IOException {
+
+        String jsonString = "{\"A\":\"A-value\",\"B\":\"{\\\"C\\\":\\\"C-value\\\",\\\"D\\\":\\\"D-value\\\"}\"}";
+        Map<String, String> flatMap = JsonUtil.convertJsonStringToFlatMap(jsonString);
+
+        Map<String, String> expectedMap = new HashMap<>();
+        expectedMap.put("A", "A-value");
+        expectedMap.put("B", "{\"C\":\"C-value\",\"D\":\"D-value\"}");
+
+        assertEquals(expectedMap, flatMap);
+        assertNotNull(flatMap);
+    }
+
+    @Test(expected = FileNotFoundException.class)
+    public void should_throw_exception_when_not_found_json_file() throws IOException {
+        JsonUtil.readInputJson("not-existing.json", DummyClass.class);
+    }
+
+
+    @Test(expected = JsonParseException.class)
+    public void should_throw_exception_when_invalid_json_file() throws IOException {
+        JsonUtil.readInputJson("/invalid.json", DummyClass.class);
+    }
+
+    @Test
+    public void should_parse_valid_json_file () throws IOException {
+        DummyClass dummyClass = JsonUtil.readInputJson("/valid.json", DummyClass.class);
+
+        assertEquals("dummy name", dummyClass.getName());
+        assertEquals(99, dummyClass.getValue());
+    }
+
+    private static class DummyClass {
+
+        private String name;
+        private int value;
+
+        public DummyClass(@JsonProperty("name") String name, @JsonProperty("value") int someValue) {
+            this.name = name;
+            this.value = someValue;
+        }
+
+        public String getName() {
+            return name;
+        }
+
+        public int getValue() {
+            return value;
+        }
+    }
+}
+
+
diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/util/MessageFormatterTest.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/util/MessageFormatterTest.java
new file mode 100644
index 000000000..fe7d1a532
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/util/MessageFormatterTest.java
@@ -0,0 +1,78 @@
+package org.onap.appc.util;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+import com.google.common.collect.Maps;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import org.apache.commons.lang3.StringUtils;
+import org.junit.Test;
+
+public class MessageFormatterTest {
+
+    @Test
+    public void format_should_return_empty_string_when_given_null_or_empty_message_template() {
+        assertEquals(StringUtils.EMPTY, MessageFormatter.format(null, Maps.newHashMap()));
+        assertEquals(StringUtils.EMPTY, MessageFormatter.format(StringUtils.EMPTY, Maps.newHashMap()));
+    }
+
+    @Test
+    public void should_return_same_string_when_given_null_or_empty_params() {
+        String message = "message";
+
+        assertEquals(message, MessageFormatter.format(message, null));
+        assertEquals(message, MessageFormatter.format(message, Maps.newHashMap()));
+    }
+
+    @Test
+    public void should_return_same_string_when_given_non_dollar_string() {
+        String msg = "vnfid";
+
+        Map<String, Object> respMsg = new HashMap<>();
+        respMsg.put("vnfid", "SYNC_NEW201");
+
+        assertEquals(msg, MessageFormatter.format(msg, respMsg));
+    }
+
+
+    @Test
+    public void should_replace_dollar_sign_statement_with_map_value() {
+        String message = "${vnfid} some sample text ${pnfid} additional sample text";
+
+        Map<String, Object> respMsg = new HashMap<>();
+        respMsg.put("vnfid", "SYNC_NEW201");
+        respMsg.put("pnfid", "TEST-ID");
+
+        assertEquals("SYNC_NEW201 some sample text TEST-ID additional sample text",
+            MessageFormatter.format(message, respMsg));
+    }
+
+    @Test
+    public void getParamsNamesList_should_return_null_when_given_null_or_empty_message_template() {
+        assertEquals(null, MessageFormatter.getParamsNamesList(null));
+        assertEquals(null, MessageFormatter.getParamsNamesList(StringUtils.EMPTY));
+
+        assertEquals(null, MessageFormatter.getParamsNamesSet(null));
+        assertEquals(null, MessageFormatter.getParamsNamesSet(StringUtils.EMPTY));
+    }
+
+    @Test
+    public void should_recognize_params_inside_message_string() {
+        String message = "${vnfid} some sample text ${pnfid} additional sample text";
+
+        List<String> resultList = MessageFormatter.getParamsNamesList(message);
+
+        assertEquals(2, resultList.size());
+        assertTrue(resultList.contains("vnfid"));
+        assertTrue(resultList.contains("pnfid"));
+
+        Set<String> resultSet = MessageFormatter.getParamsNamesSet(message);
+
+        assertEquals(2, resultList.size());
+        assertTrue(resultSet.contains("vnfid"));
+        assertTrue(resultSet.contains("pnfid"));
+    }
+}
diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/util/PathContextTest.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/util/PathContextTest.java
new file mode 100644
index 000000000..ef538d2e1
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/util/PathContextTest.java
@@ -0,0 +1,122 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2018 Nokia Solutions and Networks
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.appc.util;
+
+import static org.junit.Assert.*;
+
+import java.util.Map;
+import org.junit.Before;
+import org.junit.Test;
+
+public class PathContextTest {
+
+    private PathContext pathContext;
+
+    @Before
+    public void setup() {
+        pathContext = new PathContext();
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void should_throw_exception_when_pushed_null_token() {
+        pathContext.pushToken(null);
+    }
+
+    @Test(expected = IllegalStateException.class)
+    public void should_throw_exception_when_popped_token_from_empty_path() {
+        pathContext.popToken();
+    }
+
+    @Test
+    public void should_delimit_tokens_with_dot() {
+        pathContext.pushToken("test");
+        pathContext.pushToken("token");
+
+        assertEquals("test.token", pathContext.getPath());
+    }
+
+    @Test
+    public void should_pop_tokens() {
+        pathContext.pushToken("test");
+        pathContext.pushToken("token");
+        pathContext.pushToken("token2");
+
+        pathContext.popToken();
+
+        assertEquals("test.token", pathContext.getPath());
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void should_throw_exception_when_pushed_null_modifier() {
+        pathContext.pushModifier(null);
+    }
+
+    @Test(expected = IllegalStateException.class)
+    public void should_throw_exception_when_popped_modifier_from_empty_path() {
+        pathContext.popModifier();
+    }
+
+    @Test
+    public void should_not_delimit_modifiers() {
+        pathContext.pushModifier("test");
+        pathContext.pushModifier("modifier");
+
+        assertEquals("testmodifier", pathContext.getPath());
+    }
+
+    @Test
+    public void should_pop_modifiers() {
+        pathContext.pushModifier("test");
+        pathContext.pushModifier("modifier");
+        pathContext.pushModifier("modifier2");
+
+        pathContext.popModifier();
+
+        assertEquals("testmodifier", pathContext.getPath());
+    }
+
+    @Test
+    public void should_pop_modifiers_and_tokens() {
+        pathContext.pushModifier("test");
+        pathContext.pushModifier("modifier");
+        pathContext.pushToken("token");
+
+        //TODO popToken() and popModifier() actually work the same.
+        //TODO Is there sense to keep same method under different names then?
+
+        pathContext.popToken();
+        assertEquals("testmodifier", pathContext.getPath());
+
+        pathContext.popModifier();
+        assertEquals("test", pathContext.getPath());
+    }
+
+    @Test
+    public void should_add_entries(){
+        pathContext.entry("name", "value");
+
+        Map<String, String> entries = pathContext.entries();
+        assertEquals("value", entries.get("name"));
+    }
+
+}
diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/util/StreamHelperTest.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/util/StreamHelperTest.java
new file mode 100644
index 000000000..73c32d644
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/util/StreamHelperTest.java
@@ -0,0 +1,86 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2017 Amdocs
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.appc.util;
+
+import static org.junit.Assert.*;
+
+import java.io.ByteArrayInputStream;
+
+import org.junit.Test;
+import org.onap.appc.util.StreamHelper;
+
+public class StreamHelperTest {
+
+    private static final String text = "Filler text (also placeholder text or dummy text) is text that shares "
+        + "some characteristics of a real written text, but is random or otherwise generated. It may be used "
+        + "to display a sample of fonts, generate text for testing, or to spoof an e-mail spam filter. The "
+        + "process of using filler text is sometimes called greeking, although the text itself may be nonsense, "
+        + "or largely Latin, as in Lorem ipsum.\nASDF is the sequence of letters that appear on the first four "
+        + "keys on the home row of a QWERTY or QWERTZ keyboard. They are often used as a sample or test case "
+        + "or as random, meaningless nonsense. It is also a common learning tool for keyboard classes, since "
+        + "all four keys are located on Home row.\nETAOIN SHRDLU is the approximate order of frequency of the "
+        + "twelve most commonly used letters in the English language, best known as a nonsense phrase that "
+        + "sometimes appeared in print in the days of \"hot type\" publishing due to a custom of Linotype "
+        + "machine operators.\nLorem ipsum... is one of the most common filler texts, popular with "
+        + "typesetters and graphic designers. \"Li Europan lingues...\" is another similar example.\n"
+        + "Now is the time for all good men to come to the aid of the party\" is a phrase first proposed "
+        + "as a typing drill by instructor Charles E. Weller; its use is recounted in his book The Early "
+        + "History of the Typewriter, p. 21 (1918).[1] Frank E. McGurrin, an expert on the early Remington "
+        + "typewriter, used it in demonstrating his touch typing abilities in January 1889.[2] It has "
+        + "appeared in a number of typing books, often in the form \"Now is the time for all good men to "
+        + "come to the aid of their country.\"\nThe quick brown fox jumps over the lazy dog - A coherent, "
+        + "short phrase that uses every letter of the alphabet. See pangram for more examples.\nNew Petitions"
+        + " and Building Code - Many B movies of the 1940s, 50s, and 60s utilized the \"spinning newspaper\" "
+        + "effect to narrate important plot points that occurred offscreen. The effect necessitated the "
+        + "appearance of a realistic front page, which consisted of a main headline relevant to the plot, "
+        + "and several smaller headlines used as filler. A large number of these spinning newspapers "
+        + "included stories titled \"New Petitions Against Tax\" and \"Building Code Under Fire.\" These "
+        + "phrases have become running jokes among B movie fans, and particularly fans of Mystery "
+        + "Science Theater 3000. \nCharacter Generator Protocol - The Character Generator Protocol "
+        + "(CHARGEN) service is an Internet protocol intended for testing, debugging, and measurement "
+        + "purposes.\n!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefgh\n\""
+        + "#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghi\n"
+        + "#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghij\n"
+        + "$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijk\n";
+
+    @Test
+    public void should_return_empty_string_when_given_null_input_stream() {
+        assertNotNull(StreamHelper.getStringFromInputStream(null));
+        assertEquals("", StreamHelper.getStringFromInputStream(null));
+    }
+
+    @Test
+    public void should_return_empty_string_when_given_empty_byte_array() {
+        ByteArrayInputStream emptyInputStream = new ByteArrayInputStream(new byte[0]);
+
+        assertEquals("", StreamHelper.getStringFromInputStream(emptyInputStream));
+    }
+
+    @Test
+    public void should_return_string_when_given_byte_array() {
+        ByteArrayInputStream inputStream = new ByteArrayInputStream(text.getBytes());
+
+        assertEquals(text, StreamHelper.getStringFromInputStream(inputStream));
+    }
+}
diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/util/StringHelperTest.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/util/StringHelperTest.java
new file mode 100644
index 000000000..1022440b0
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/util/StringHelperTest.java
@@ -0,0 +1,403 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2018 Nokia Solutions and Networks
+ * =============================================================================
+ * Modifications Copyright (C) 2018 IBM
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * ============LICENSE_END=========================================================
+ */
+
+
+package org.onap.appc.util;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
+
+import com.google.common.collect.Lists;
+import com.google.common.collect.Maps;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Properties;
+import java.util.Date;
+
+import org.apache.commons.lang3.StringUtils;
+import org.junit.Test;
+import org.onap.appc.util.StringHelper;
+
+
+public class StringHelperTest {
+
+    //TODO write more tests for convertToRegex method
+
+    @Test
+    public void convertToRegex_should_return_regex_matching_all_string_when_given_null_or_empty_string(){
+        assertEquals(".*", StringHelper.convertToRegex(null));
+        assertEquals(".*", StringHelper.convertToRegex(""));
+        assertEquals(".*", StringHelper.convertToRegex("  "));
+    }
+    
+    @Test
+    public void convertToRegex_should_return_proper_regex_when_we_provide_a_proper_string_expression(){
+        String expected=".*test\\.jpg.test123\\.jpeg$";
+        assertEquals(expected,StringHelper.convertToRegex("*test.jpg+test123.jpeg"));
+    }
+    
+    @Test
+    public void test_ResolveToType_with_null_as_input(){
+        assertNull(StringHelper.resolveToType(null));
+    }
+    
+    @Test
+    public void test_ResolveToType_with_integer_as_input(){
+    	Integer expected=-112;
+    	assertEquals(expected,StringHelper.resolveToType("-112"));
+    }
+    
+    @Test
+    public void test_ResolveToType_with_double_as_input(){
+    	Double expected=-112.12;
+    	assertEquals(expected,StringHelper.resolveToType("-112.12"));
+    }
+    
+    @Test
+    public void test_ResolveToType_with_boolean_as_input(){
+    	Boolean expected=true;
+    	assertEquals(expected,StringHelper.resolveToType("true"));
+    }
+  
+    @Test
+    public void test_ResolveToType_with_date_as_input(){
+       assertTrue(StringHelper.resolveToType("1994-11-05T08:15:30-05:00") instanceof Date);
+    }
+    
+
+    @Test
+    public void getShortenedString_should_return_null_when_given_null(){
+        assertNull(StringHelper.getShortenedString(null, 2));
+    }
+
+    @Test
+    public void getShortenedString_should_return_given_string_when_length_is_lower_than_4(){
+        assertEquals("str", StringHelper.getShortenedString("str", 3));
+        assertEquals("str", StringHelper.getShortenedString("str", 2));
+        assertEquals("test", StringHelper.getShortenedString("test", 3));
+    }
+
+    @Test
+    public void getShortenedString_should_shorten_string_and_append_ellipsis(){
+
+        assertEquals("s...", StringHelper.getShortenedString("sample", 4));
+        assertEquals("test...", StringHelper.getShortenedString("test string", 7));
+    }
+
+    @Test
+    public void isNotNullNotEmpty_should_return_true_if_string_is_not_null_or_not_empty(){
+        assertFalse(StringHelper.isNotNullNotEmpty(null));
+        assertFalse(StringHelper.isNotNullNotEmpty(""));
+        assertFalse(StringHelper.isNotNullNotEmpty(" "));
+        assertTrue(StringHelper.isNotNullNotEmpty("test"));
+    }
+
+    @Test
+    public void isNullOrEmpty_should_return_true_if_string_is_null_or_empty(){
+        assertTrue(StringHelper.isNullOrEmpty(null));
+        assertTrue(StringHelper.isNullOrEmpty(""));
+        assertTrue(StringHelper.isNullOrEmpty(" "));
+        assertFalse(StringHelper.isNullOrEmpty("test"));
+    }
+
+    @Test
+    public void areEqual_should_return_true_when_both_null(){
+        assertTrue(StringHelper.areEqual(null, null));
+    }
+
+    @Test
+    public void areEqual_should_return_false_when_one_string_is_null(){
+        assertFalse(StringHelper.areEqual(null, "test"));
+    }
+
+    @Test
+    public void areEqual_should_compare_two_string(){
+        assertFalse(StringHelper.areEqual("test2", "test"));
+        assertFalse(StringHelper.areEqual("test", "Test"));
+    }
+
+    @Test
+    public void equalsIgnoreCase_should_compare_two_string_case_insensitive(){
+        assertFalse(StringHelper.equalsIgnoreCase("test2", "test"));
+        assertTrue(StringHelper.equalsIgnoreCase("test", "Test"));
+    }
+
+    @Test
+    public void mangleName_should_pad_string_when_given_null_or_empty(){
+        assertEquals("aaaa", StringHelper.mangleName(null, 3, 6));
+        assertEquals("aaaa", StringHelper.mangleName(StringUtils.EMPTY, 3, 6));
+
+        assertEquals("aa", StringHelper.mangleName(null, 1, 6));
+        assertEquals("aa", StringHelper.mangleName(StringUtils.EMPTY, 1, 6));
+
+        assertEquals("aaaaaaaaa", StringHelper.mangleName(null, 8, 12));
+        assertEquals("aaaaaaaaa", StringHelper.mangleName(StringUtils.EMPTY, 8, 12));
+
+    }
+
+    @Test
+    public void mangleName_should_remove_all_illegal_characters(){
+        assertEquals("ab45", StringHelper.mangleName("ab45 ", 3, 6));
+        assertEquals("ab45", StringHelper.mangleName("ab!45", 3, 6));
+        assertEquals("ab45", StringHelper.mangleName("a b!45", 3, 6));
+    }
+
+    @Test
+    public void mangleName_should_convert_all_character_to_lowercase(){
+        assertEquals("test", StringHelper.mangleName("TeSt", 3, 6));
+        assertEquals("abb45fgr", StringHelper.mangleName("abB!4 5FGR", 6, 8));
+    }
+
+    @Test
+    public void mangleName_should_pad_string_when_result_is_too_short(){
+        assertEquals("testaaa", StringHelper.mangleName("TeSt", 6, 10));
+        assertEquals("abb45fgraaaaa", StringHelper.mangleName("abB!4 5FGR", 12, 15));
+    }
+
+    @Test
+    public void mangleName_should_truncate_string_when_too_long(){
+        assertEquals("tst", StringHelper.mangleName("TeSt", 0, 3));
+        assertEquals("tt", StringHelper.mangleName("TeSt", 0, 2));
+        assertEquals("agr", StringHelper.mangleName("abb45fgr", 0, 3));
+        assertEquals("abgr", StringHelper.mangleName("abb45fgr", 0, 4));
+    }
+
+    @Test
+    public void normalizeString_should_return_null_when_given_null_or_empty_string(){
+        assertNull(StringHelper.normalizeString(null));
+        assertNull(StringHelper.normalizeString(StringUtils.EMPTY));
+    }
+
+    @Test
+    public void normalizeString_should_trim_string(){
+        assertEquals("this is test sequence",
+            StringHelper.normalizeString("  this is test sequence "));
+        assertEquals("this  is test   sequence",
+            StringHelper.normalizeString("  this  is test   sequence   "));
+    }
+
+    @Test
+    public void stripCRLFs_should_return_null_when_given_null() {
+        assertNull(StringHelper.stripCRLF(null));
+    }
+
+    @Test
+    public void stripCRLF_should_strip_all_CRLF_and_LF() {
+        assertEquals(StringUtils.EMPTY, StringHelper.toUnixLines(StringUtils.EMPTY));
+        assertEquals("this is test sequence", StringHelper.stripCRLF("this is test sequence"));
+        assertEquals("this is testsequence", StringHelper.stripCRLF("this is test\nsequence"));
+        assertEquals("this istestsequence", StringHelper.stripCRLF("this is\ntest\r\nsequence"));
+        assertEquals("this istestsequence", StringHelper.stripCRLF("this is\r\ntest\n\rsequence"));
+    }
+
+    @Test
+    public void toDOSLines_should_return_null_when_given_null() {
+        assertNull(StringHelper.toDOSLines(null));
+    }
+
+    @Test
+    public void toUnixLines_should_replace_LF_with_CRLF() {
+        assertEquals(StringUtils.EMPTY, StringHelper.toUnixLines(StringUtils.EMPTY));
+        assertEquals("this is test sequence", StringHelper.toDOSLines("this is test sequence"));
+        assertEquals("this is test\r\nsequence", StringHelper.toDOSLines("this is test\nsequence"));
+        assertEquals("this is test\rsequence", StringHelper.toDOSLines("this is test\rsequence"));
+        assertEquals("this is\r\ntest\n\rsequence", StringHelper.toDOSLines("this is\r\ntest\n\rsequence"));
+    }
+
+    @Test
+    public void toUnixLines_should_return_null_when_given_null() {
+        assertNull(StringHelper.toUnixLines(null));
+    }
+
+    @Test
+    public void toUnixLines_should_replace_CRLF_with_LF() {
+        assertEquals(StringUtils.EMPTY, StringHelper.toUnixLines(StringUtils.EMPTY));
+        assertEquals("this is test sequence", StringHelper.toUnixLines("this is test sequence"));
+        assertEquals("this is test\nsequence", StringHelper.toUnixLines("this is test\nsequence"));
+        assertEquals("this is\ntest\nsequence", StringHelper.toUnixLines("this is\r\ntest\n\rsequence"));
+    }
+
+    @Test
+    public void translate_should_return_null_when_given_null_sequence() {
+        assertNull(StringHelper.translate(null, "abc", "def"));
+    }
+
+    @Test
+    public void translate_should_translate_sequence() {
+
+        assertEquals(StringUtils.EMPTY, StringHelper.translate(StringUtils.EMPTY, "abc", "def"));
+        assertEquals("ahis is absa sbqubccb",
+            StringHelper.translate("this is test sequence", "ten", "abc"));
+    }
+
+
+    @Test
+    public void translate_should_translate_sequence_given_replacement_longer_then_match() {
+        assertEquals("ahis is absa sbqubccb",
+            StringHelper.translate("this is test sequence", "ten", "abcde"));
+    }
+
+    @Test
+    public void translate_should_translate_sequence_given_replacement_shorter_then_match() {
+        assertEquals("ahas as absa sbqubccb",
+            StringHelper.translate("this is test sequence", "teni", "abc"));
+    }
+
+    @Test
+    public void validIdentifier_should_return_null_when_given_null() {
+        assertNull(StringHelper.validIdentifier(null));
+    }
+
+
+    @Test
+    public void validIdentifier_should_return_valid_identifier() {
+        assertEquals(StringUtils.EMPTY, StringHelper.validIdentifier(StringUtils.EMPTY));
+        assertEquals("abcd", StringHelper.validIdentifier("abcd"));
+        assertEquals("abc_", StringHelper.validIdentifier("abc!"));
+        assertEquals("ab_cd", StringHelper.validIdentifier("ab cd"));
+        assertEquals("ab_cd_", StringHelper.validIdentifier("ab cd!"));
+    }
+
+    @Test
+    public void verify_should_return_null_when_given_null_sequence() {
+        assertNull(StringHelper.verify(null, "abc", 'r'));
+    }
+
+    @Test
+    public void verify_should_return_empty_string_when_given_empty_sequence() {
+        assertEquals(StringUtils.EMPTY, StringHelper.verify("", "abc", 'r'));
+    }
+
+    @Test
+    public void verify_should_replace_illegal_characters() {
+        assertEquals("trir ir tert rerterre",
+            StringHelper.verify("this is test sentence", "iet ", 'r'));
+    }
+
+    @Test
+    public void toList_should_return_empty_string_when_given_null_or_empty_list() {
+        assertEquals(StringUtils.EMPTY, StringHelper.asList((List<String>) null));
+        assertEquals(StringUtils.EMPTY, StringHelper.asList((Lists.newArrayList())));
+    }
+
+    @Test
+    public void toList_should_return_element_when_given_one_element_list() {
+        assertEquals("test", StringHelper.asList(Lists.newArrayList("test")));
+    }
+
+    @Test
+    public void toList_should_convert_to_string_given_list() {
+        assertEquals("test, test2, test3",
+            StringHelper.asList(Lists.newArrayList("test", "test2", "test3")));
+    }
+
+    @Test
+    public void toList_should_return_empty_string_when_given_null_or_empty_map() {
+        assertEquals(StringUtils.EMPTY, StringHelper.asList((Map<String, String>) null));
+        assertEquals(StringUtils.EMPTY, StringHelper.asList((Maps.newHashMap())));
+    }
+
+    @Test
+    public void toList_should_return_entry_when_given_one_entry_map() {
+        Map<String, String> testMap = new HashMap<>();
+        testMap.put("key1", "value1");
+
+        assertEquals("key1=value1", StringHelper.asList(testMap));
+    }
+
+    @Test
+    public void toList_should_convert_to_string_given_map() {
+        Map<String, String> testMap = new HashMap<>();
+        testMap.put("key1", "value1");
+        testMap.put("key2", "value2");
+
+        assertEquals("key1=value1, key2=value2", StringHelper.asList(testMap));
+    }
+
+    @Test
+    public void toList_should_return_string_representation_of_empty_array_when_given_null() {
+        String value = StringHelper.asList((String[]) null);
+        assertNotNull(value);
+        assertEquals("[]", value);
+    }
+
+    @Test
+    public void toList_should_return_string_representation_of_empty_array_when_given_empty_array() {
+        String value = StringHelper.asList(new String[]{});
+        assertNotNull(value);
+        assertEquals("[]", value);
+    }
+
+    @Test
+    public void toList_should_return_string_representation_of_one_element_array() {
+        String value = StringHelper.asList("one");
+        assertNotNull(value);
+        assertEquals("[one]", value);
+    }
+
+    @Test
+    public void toList_should_return_string_representation_of_array() {
+        String value = StringHelper.asList("one", "two", "three", "four", "five");
+        assertNotNull(value);
+        assertEquals("[one,two,three,four,five]", value);
+    }
+
+    @Test
+    public void propertiesToString_should_return_null_when_given_null_properties() {
+
+        assertEquals(null, StringHelper.propertiesToString(null));
+    }
+
+    @Test
+    public void propertiesToString_should_return_string_representation_of_empty_array_when_given_empty_properties() {
+
+        Properties props = new Properties();
+
+        String result = StringHelper.propertiesToString(props);
+        assertNotNull(result);
+        assertEquals("[ ]", result);
+    }
+
+    @Test
+    public void propertiesToString_should_return_convert_properties_to_string() {
+        Properties props = new Properties();
+        props.setProperty("key1", "value1");
+        props.setProperty("key2", "value2");
+
+        String result = StringHelper.propertiesToString(props);
+
+        assertTrue(result.startsWith("[ "));
+        assertTrue(result.contains("key1"));
+        assertTrue(result.contains("value1"));
+        assertTrue(result.contains("key2"));
+        assertTrue(result.contains("value2"));
+        assertTrue(result.endsWith(" ]"));
+        assertTrue(result.lastIndexOf(",") < result.length() - 3);
+    }
+}
diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/util/TestStructuredPropertyHelper.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/util/TestStructuredPropertyHelper.java
new file mode 100644
index 000000000..e61531a8b
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/util/TestStructuredPropertyHelper.java
@@ -0,0 +1,284 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2017 Amdocs
+ * =============================================================================
+ * Modifications Copyright (C) 2018 IBM.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.appc.util;
+
+import static org.junit.Assert.*;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Properties;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.onap.appc.util.StructuredPropertyHelper;
+import org.onap.appc.util.StructuredPropertyHelper.Node;
+
+/**
+ * This class is used to test the structured property helper class.
+ * <p>
+ * A structured property is one where the name is constructed from a compound set of elements, concatenated by a period,
+ * and optionally being enumerated using a sequence number suffix. A java package name is an example of a structured
+ * name, where each element of the name represents a directory or name in the namespace hierarchy. Property names may
+ * also be structured. This class constructs a graph of the structured properties and this test case is used to verify
+ * its operation.
+ * </p>
+ *
+ */
+public class TestStructuredPropertyHelper {
+
+    /**
+     * The properties to be parsed
+     */
+    private Properties properties;
+
+    /**
+     * The result of parsing the properties
+     */
+    private List<Node> nodes = new ArrayList<>();
+
+    /**
+     * Initialize the test environment
+     */
+    @SuppressWarnings("nls")
+    @Before
+    public void setup() {
+        nodes.clear();
+
+        properties = new Properties();
+
+        properties.setProperty("provider1.name", "provider1Name");
+        properties.setProperty("provider1.type", "provider1type");
+        properties.setProperty("provider1.URL", "provider1URL");
+        properties.setProperty("provider2.name", "provider2Name");
+        properties.setProperty("provider2.type", "provider2type");
+        properties.setProperty("provider2.URL", "provider2URL");
+        properties.setProperty("provider003.name", "provider3Name");
+        properties.setProperty("provider003.type", "provider3type");
+        properties.setProperty("provider003.URL", "provider3URL");
+
+        properties.setProperty("node1.level1.value1.key", "1.1.1");
+        properties.setProperty("node1.level1.value2.key", "1.1.2");
+        properties.setProperty("node1.level1.value3.key", "1.1.3");
+        properties.setProperty("node1.level2.value1.key", "1.2.1");
+        properties.setProperty("node1.level2.value2.key", "1.2.2");
+        properties.setProperty("node1.level2.value3.key", "1.2.3");
+        properties.setProperty("node1.level3.value1.key", "1.3.1");
+        properties.setProperty("node1.level3.value2.key", "1.3.2");
+        properties.setProperty("node1.level3.value3.key", "1.3.3");
+        properties.setProperty("node2.level1.value1.key", "2.1.1");
+        properties.setProperty("node2.level1.value2.key", "2.1.2");
+        properties.setProperty("node2.level1.value3.key", "2.1.3");
+        properties.setProperty("node2.level2.value1.key", "2.2.1");
+        properties.setProperty("node2.level2.value2.key", "2.2.2");
+        properties.setProperty("node2.level2.value3.key", "2.2.3");
+        properties.setProperty("node2.level3.value1.key", "2.3.1");
+        properties.setProperty("node2.level3.value2.key", "2.3.2");
+        properties.setProperty("node2.level3.value3.key", "2.3.3");
+        properties.setProperty("node3.level1.value1.key", "3.1.1");
+        properties.setProperty("node3.level1.value2.key", "3.1.2");
+        properties.setProperty("node3.level1.value3.key", "3.1.3");
+        properties.setProperty("node3.level2.value1.key", "3.2.1");
+        properties.setProperty("node3.level2.value2.key", "3.2.2");
+        properties.setProperty("node3.level2.value3.key", "3.2.3");
+        properties.setProperty("node3.level3.value1.key", "3.3.1");
+        properties.setProperty("node3.level3.value2.key", "3.3.2");
+        properties.setProperty("node3.level3.value3.key", "3.3.3");
+
+        properties.setProperty("other.property", "bogus");
+        properties.setProperty("yet.another.property", "bogus");
+        properties.setProperty("simpleProperty", "bogus");
+
+    }
+
+    /**
+     * Test that a simple namespace works
+     */
+    @SuppressWarnings("nls")
+    @Test
+    public void testSimpleNamespace() {
+        nodes = StructuredPropertyHelper.getStructuredProperties(properties, "provider");
+
+        assertNotNull(nodes);
+        assertFalse(nodes.isEmpty());
+
+        assertEquals(3, nodes.size());
+
+        List<Node> children;
+        for (Node node : nodes) {
+            switch (node.getName()) {
+                case "provider1":
+                    assertNull(node.getValue());
+                    children = node.getChildren();
+                    assertNotNull(children);
+                    assertEquals(3, children.size());
+                    for (Node child : children) {
+                        switch (child.getName()) {
+                            case "URL":
+                                assertEquals("provider1URL", child.getValue());
+                                break;
+                            case "type":
+                                assertEquals("provider1type", child.getValue());
+                                break;
+                            case "name":
+                                assertEquals("provider1Name", child.getValue());
+                                break;
+                            default:
+                                fail("Unknown child of " + node.getName() + " with value " + child.toString());
+                        }
+                    }
+                    break;
+                case "provider2":
+                    assertNull(node.getValue());
+                    children = node.getChildren();
+                    assertNotNull(children);
+                    assertEquals(3, children.size());
+                    for (Node child : children) {
+                        switch (child.getName()) {
+                            case "URL":
+                                assertEquals("provider2URL", child.getValue());
+                                break;
+                            case "type":
+                                assertEquals("provider2type", child.getValue());
+                                break;
+                            case "name":
+                                assertEquals("provider2Name", child.getValue());
+                                break;
+                            default:
+                                fail("Unknown child of " + node.getName() + " with value " + child.toString());
+                        }
+                    }
+                    break;
+                case "provider3":
+                    /*
+                     * Note that the helper normalizes any ordinal suffixes (003 became 3)
+                     */
+                    assertNull(node.getValue());
+                    children = node.getChildren();
+                    assertNotNull(children);
+                    assertEquals(3, children.size());
+                    for (Node child : children) {
+                        switch (child.getName()) {
+                            case "URL":
+                                assertEquals("provider3URL", child.getValue());
+                                break;
+                            case "type":
+                                assertEquals("provider3type", child.getValue());
+                                break;
+                            case "name":
+                                assertEquals("provider3Name", child.getValue());
+                                break;
+                            default:
+                                fail("Unknown child of " + node.getName() + " with value " + child.toString());
+                        }
+                    }
+                    break;
+                default:
+                    fail("Unknown provider " + node.toString());
+            }
+        }
+        // System.out.println(nodes);
+    }
+
+    /**
+     * Test a multi-dimensional namespace (3X3X3)
+     */
+    @SuppressWarnings("nls")
+    @Test
+    public void testMultiLevelNamespace() {
+        nodes = StructuredPropertyHelper.getStructuredProperties(properties, "node");
+
+        assertNotNull(nodes);
+        assertFalse(nodes.isEmpty());
+
+        assertEquals(3, nodes.size());
+        for (Node node : nodes) {
+            assertNull(node.getValue());
+            List<Node> children = node.getChildren();
+            assertNotNull(children);
+            assertEquals(3, children.size());
+            for (Node child : children) {
+                assertNull(child.getValue());
+                List<Node> grandChildren = child.getChildren();
+                assertNotNull(grandChildren);
+                assertEquals(3, grandChildren.size());
+                for (Node greatGrandChild : grandChildren) {
+                    assertNull(greatGrandChild.getValue());
+                    List<Node> greatGrandChildren = greatGrandChild.getChildren();
+                    assertNotNull(greatGrandChildren);
+                    assertEquals(1, greatGrandChildren.size());
+                }
+            }
+        }
+        // System.out.println(nodes);
+    }
+    
+    @Test
+    public void testToStringWithValue()
+    {
+        nodes = StructuredPropertyHelper.getStructuredProperties(properties, "node");
+        Node node = nodes.get(0);
+        node.setName("testName");
+        node.setValue("testValue");
+        String str= node.toString();
+        assertEquals("testName = testValue",str);
+    }
+    
+    @Test
+    public void testEquals()
+    {
+        Node node0 = new Node();
+        node0.setName("testName");
+        node0.setValue("testValue");
+        Node node1 = new Node();
+        node1.setName("testName");
+        node1.setValue("testValue");
+        assertTrue(node0.equals(node1));    
+    }
+    
+   @Test
+    public void testEqualsWithSameNameAndDifferentValue()
+    {
+        Node node0 = new Node();
+        node0.setName("testName");
+        node0.setValue("testValue1");
+        Node node1 = new Node();
+        node1.setName("testName");
+        node1.setValue("testValue2");
+        assertFalse(node0.equals(node1));    
+    }
+    
+    @Test
+    public void testEqualsWithSameValueAndDifferentName()
+    {
+        Node node0 = new Node();
+        node0.setName("testName1");
+        node0.setValue("testValue");
+        Node node1 = new Node();
+        node1.setName("testName2");
+        node1.setValue("testValue");
+        assertFalse(node0.equals(node1));    
+    }
+}
diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/util/TimeTest.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/util/TimeTest.java
new file mode 100644
index 000000000..961a62c0a
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/util/TimeTest.java
@@ -0,0 +1,150 @@
+/*
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Modifications Copyright (C) 2018 IBM
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * ============LICENSE_END=========================================================
+ */
+
+
+package org.onap.appc.util;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
+import java.text.ParseException;
+import java.time.ZoneOffset;
+import java.time.ZonedDateTime;
+import java.util.Calendar;
+import java.util.Date;
+import java.util.Locale;
+import java.util.TimeZone;
+
+import javax.xml.datatype.XMLGregorianCalendar;
+
+import org.junit.Test;
+
+
+public class TimeTest {
+
+    @Test
+    public void testAddTime() {
+
+        final Date dateNow = new Date();
+        long dateNowMSec = dateNow.getTime();
+        Date dateSecLater = Time.addTime(dateNow, 0, 0, 0, 0, 1);
+        long dateSecLaterMSec = dateSecLater.getTime();
+        assertEquals(dateNowMSec + 1000, dateSecLaterMSec);
+
+    }
+
+    @Test
+    public void testDateOnly() {
+
+        final Date dateNow = new Date();
+        Calendar cal = Calendar.getInstance();
+        cal.setTime(dateNow);
+
+        Time.dateOnly(cal);
+
+        long msecFromBegin = cal.get(Calendar.HOUR_OF_DAY)*60*60*1000 +
+            cal.get(Calendar.MINUTE)*60*1000 +
+            cal.get(Calendar.SECOND)*1000 +
+            cal.get(Calendar.MILLISECOND);
+
+        assertEquals( msecFromBegin, 0);
+
+    }
+
+    @Test
+    public void testGetCurrentUTCDate() {
+
+        Date utcDate  = Time.getCurrentUTCDate();
+
+        ZonedDateTime utc = ZonedDateTime.now(ZoneOffset.UTC);
+
+        long epochSecs = utc.toEpochSecond();
+
+        long utcSecs = utcDate.getTime() / 1000;
+
+        assertEquals(epochSecs, utcSecs);
+    }
+
+    @Test
+    public void testEndOfDayLocal() {
+        final Date dateNow = new Date();
+        assertTrue(Time.endOfDayLocal(dateNow) instanceof Date);
+    }
+    
+    @Test
+    public void testGetDateByLocaleAndTimeZone() {
+       final Date dateNow = new Date("19-Jul-2018");
+       Locale locale = new Locale("fr"); 
+       TimeZone timeZone = TimeZone.getTimeZone("Europe/France");
+       assertNotNull(Time.getDateByLocaleAndTimeZone(dateNow,locale,timeZone));
+       assertTrue(Time.getDateByLocaleAndTimeZone(dateNow,locale,timeZone) instanceof String);
+    }
+    
+    @Test
+    public void testUtcFormat() {
+       final Date date = new Date("19-Jul-2018");
+       assertNotNull(Time.utcFormat(date));
+       assertTrue(Time.utcFormat(date) instanceof String);
+    }
+    
+    //this test succeeds if localTime() does not throw an exception  
+    @Test
+    public void testLocalTime() {
+       Time.localTime(1532083631);
+    }
+    
+    @Test
+    public void testSetDate() {
+        Calendar cal = Calendar.getInstance();
+        cal.set(Calendar.YEAR, 2018);
+        cal.set(Calendar.MONTH, 07);
+        cal.set(Calendar.DAY_OF_MONTH, 03);
+        Calendar cal1= Time.setDate(cal, 2018, 07, 03);
+        assertEquals(cal, cal1);
+    }
+    
+    @Test
+    public void testStartOfDayLocal() {
+        assertTrue(Time.startOfDayLocal() instanceof Date);
+    }
+    
+    @Test
+    public void testTimeStamp() {
+        assertTrue(Time.timestamp() instanceof XMLGregorianCalendar);
+    }
+    
+    @Test
+    public void testDateToStringConverterMillis() {
+        String dateString=Time.dateToStringConverterMillis(new Date("02/09/2004"));
+        String expected="2004-02-09 00:00:00:000";
+        assertEquals(expected, dateString);
+    }
+    
+    @Test
+    public void testStringToDateConverterMillis() throws ParseException{
+        Date date=Time.stringToDateConverterMillis("2004-02-09 00:00:00:000");
+        Date expected=new Date("02/09/2004");
+        assertEquals(expected, date);
+    }
+}
diff --git a/appc-core/appc-common-bundle/src/test/java/org/onap/appc/util/UnmodifiablePropertiesTest.java b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/util/UnmodifiablePropertiesTest.java
new file mode 100644
index 000000000..87646d9c7
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/java/org/onap/appc/util/UnmodifiablePropertiesTest.java
@@ -0,0 +1,342 @@
+/*-

+ * ============LICENSE_START=======================================================

+ * ONAP : APPC

+ * ================================================================================

+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.

+ * =============================================================================

+ * Licensed under the Apache License, Version 2.0 (the "License");

+ * you may not use this file except in compliance with the License.

+ * You may obtain a copy of the License at

+ *

+ *      http://www.apache.org/licenses/LICENSE-2.0

+ *

+ * Unless required by applicable law or agreed to in writing, software

+ * distributed under the License is distributed on an "AS IS" BASIS,

+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

+ * See the License for the specific language governing permissions and

+ * limitations under the License.

+ * ============LICENSE_END=========================================================

+ */

+

+package org.onap.appc.util;

+

+import org.junit.Assert;

+import org.junit.Before;

+import org.junit.Test;

+import org.mockito.Mockito;

+import org.hamcrest.CoreMatchers;

+import java.io.ByteArrayOutputStream;

+import java.io.IOException;

+import java.io.PrintWriter;

+import java.io.StringWriter;

+import java.io.InputStream;

+import java.io.OutputStream;

+import java.io.PrintStream;

+import java.io.StringReader;

+import java.util.Enumeration;

+import java.util.Properties;

+

+public class UnmodifiablePropertiesTest {

+

+    private static final String propKey1 = "testKey1";

+    private static final String propKey2 = "testKey2";

+    private static final String propValue1 = "testValue1";

+    private static final String propValue2 = "testValue2";

+    private static final String noKey = "unusedKey";

+    private static final String noValue = "unusedValue";

+    private static final String propHeader = "test header";

+    private Properties properties = new Properties();

+

+    private UnmodifiableProperties unmodifiableProperties = new UnmodifiableProperties(properties);

+    private String desiredMessage = "Property cannot be modified!";

+

+    @Before

+    public void setUp() throws Exception {

+        properties.setProperty(propKey1, propValue1);

+        properties.setProperty(propKey2, propValue2);

+    }

+

+    @Test(expected = UnsupportedOperationException.class)

+    public void testClear() {

+        try {

+            unmodifiableProperties.clear();

+        } catch (UnsupportedOperationException exceptionMessage) {

+            Assert.assertEquals(desiredMessage, exceptionMessage.getMessage());

+            throw exceptionMessage;

+        }

+    }

+

+    @Test(expected = UnsupportedOperationException.class)

+    public void testClone() {

+        try {

+            unmodifiableProperties.clone();

+        } catch (UnsupportedOperationException exceptionMessage) {

+            Assert.assertEquals(desiredMessage, exceptionMessage.getMessage());

+            throw exceptionMessage;

+        }

+    }

+

+    @Test

+    public final void testContainsObject() {

+        Assert.assertTrue(unmodifiableProperties.contains(propValue2));

+        Assert.assertFalse(unmodifiableProperties.contains(noValue));

+    }

+

+    @Test

+    public final void testContainsKeyObject() {

+        Assert.assertTrue(unmodifiableProperties.containsKey(propKey1));

+        Assert.assertFalse(unmodifiableProperties.containsKey(noKey));

+    }

+

+    @Test

+    public final void testContainsValueObject() {

+        Assert.assertTrue(unmodifiableProperties.containsValue(propValue1));

+        Assert.assertFalse(unmodifiableProperties.containsValue(noValue));

+    }

+

+    @Test

+    public final void testElements() {

+        Enumeration<Object> propValues = unmodifiableProperties.elements();

+        Assert.assertEquals(propValue2, propValues.nextElement());

+        Assert.assertEquals(propValue1, propValues.nextElement());

+    }

+

+    @Test

+    public final void testEntrySet() {

+        // Expect entrySet=[testKey2=testValue2, testKey1=testValue1].

+        Assert.assertEquals("Should match my properties K/V entries in setUp", properties.entrySet(),

+                unmodifiableProperties.entrySet());

+    }

+

+    @Test

+    public final void testEqualsObject() {

+        Assert.assertTrue(unmodifiableProperties.equals(properties));

+    }

+

+    @Test

+    public final void testGetObject() {

+        Assert.assertEquals(propValue2, unmodifiableProperties.get(propKey2));

+    }

+

+    @Test

+    public final void testGetPropertyString() {

+        Assert.assertEquals(propValue1, unmodifiableProperties.getProperty("testKey1"));

+    }

+

+    @Test

+    public final void testGetPropertyStringString() {

+        Assert.assertEquals(propValue2, unmodifiableProperties.getProperty(propKey2, noValue));

+        Assert.assertEquals(propValue2, unmodifiableProperties.getProperty(noKey, propValue2));

+    }

+

+    @Test

+    public final void testHashCode() {

+        Assert.assertEquals("Should match my properties.hashcode() int.", properties.hashCode(),

+                unmodifiableProperties.hashCode());

+    }

+

+    @Test

+    public final void testIsEmpty() {

+        Assert.assertFalse(unmodifiableProperties.isEmpty());

+    }

+

+    @Test

+    public final void testKeys() {

+        Enumeration<Object> propKeys = unmodifiableProperties.keys();

+        Assert.assertEquals(propKey2, propKeys.nextElement());

+        Assert.assertEquals(propKey1, propKeys.nextElement());

+    }

+

+    @Test

+    public final void testKeySet() {

+        // Expect keySet=[testKey2, testKey1].

+        Assert.assertEquals("Should match my properties key entries in SetUp", properties.keySet(),

+                unmodifiableProperties.keySet());

+    }

+

+    @Test

+    public final void testListPrintStream() {

+        ByteArrayOutputStream propByteArray = new ByteArrayOutputStream();

+        PrintStream listOut = new PrintStream(propByteArray);

+        unmodifiableProperties.list(listOut);

+        String propList = new String(propByteArray.toByteArray());

+        Assert.assertThat(propList, CoreMatchers.containsString("testKey2=testValue2"));

+        Assert.assertThat(propList, CoreMatchers.containsString("testKey1=testValue1"));

+    }

+

+    @Test

+    public final void testListPrintWriter() {

+        StringWriter listOut = new StringWriter();

+        PrintWriter writer = new PrintWriter(listOut);

+        unmodifiableProperties.list(writer);

+        String propList = listOut.toString();

+        Assert.assertThat(propList, CoreMatchers.containsString("testKey2=testValue2"));

+        Assert.assertThat(propList, CoreMatchers.containsString("testKey1=testValue1"));

+    }

+

+    @Test

+    public final void testLoadInputStream() throws IOException {

+        InputStream mockInStream = Mockito.mock(InputStream.class);

+        try {

+            unmodifiableProperties.load(mockInStream);

+        } catch (IOException ex) {

+        } catch (UnsupportedOperationException exceptionMessage) {

+            Assert.assertEquals(desiredMessage, exceptionMessage.getMessage());

+        }

+    }

+

+    @Test(expected = UnsupportedOperationException.class)

+    public final void testLoadReader() throws IOException {

+        String dummyPair = "key3=testKey3\nvalue3=testValue3";

+        StringReader reader = new StringReader(dummyPair);

+        try {

+            unmodifiableProperties.load(reader);

+        } catch (UnsupportedOperationException exceptionMessage) {

+            Assert.assertEquals(desiredMessage, exceptionMessage.getMessage());

+            throw exceptionMessage;

+        }

+    }

+

+    @Test

+    public final void testLoadFromXMLInputStream() throws IOException {

+        InputStream mockInStream = Mockito.mock(InputStream.class);

+        try {

+            unmodifiableProperties.loadFromXML(mockInStream);

+        } catch (IOException ex) {

+        } catch (UnsupportedOperationException exceptionMessage) {

+            Assert.assertEquals(desiredMessage, exceptionMessage.getMessage());

+        }

+    }

+

+    @Test

+    public final void testPropertyNames() {

+        Enumeration<?> propNames = unmodifiableProperties.propertyNames();

+        Assert.assertEquals(propKey2, propNames.nextElement());

+        Assert.assertEquals(propKey1, propNames.nextElement());

+    }

+

+    @Test(expected = UnsupportedOperationException.class)

+    public final void testPutObjectObject() {

+        try {

+            unmodifiableProperties.put(propKey2, propValue1);

+        } catch (UnsupportedOperationException exceptionMessage) {

+            Assert.assertEquals(desiredMessage, exceptionMessage.getMessage());

+            throw exceptionMessage;

+        }

+    }

+

+    @Test(expected = UnsupportedOperationException.class)

+    public final void testPutAllMapOfQextendsObjectQextendsObject() {

+        try {

+            unmodifiableProperties.putAll(properties);

+        } catch (UnsupportedOperationException exceptionMessage) {

+            Assert.assertEquals(desiredMessage, exceptionMessage.getMessage());

+            throw exceptionMessage;

+        }

+    }

+

+    @Test(expected = UnsupportedOperationException.class)

+    public final void testRehash() {

+        try {

+            unmodifiableProperties.rehash();

+        } catch (UnsupportedOperationException exceptionMessage) {

+            Assert.assertEquals(desiredMessage, exceptionMessage.getMessage());

+            throw exceptionMessage;

+        }

+    }

+

+    @Test(expected = UnsupportedOperationException.class)

+    public final void testRemoveObject() {

+        try {

+            unmodifiableProperties.remove(propKey1);

+        } catch (UnsupportedOperationException exceptionMessage) {

+            Assert.assertEquals(desiredMessage, exceptionMessage.getMessage());

+            throw exceptionMessage;

+        }

+    }

+

+    @Test

+    public final void testSaveOutputStreamString() {

+        // Appl method is deprecated, but I still added this test since it is reachable.

+        OutputStream propByteArray = new ByteArrayOutputStream();

+        unmodifiableProperties.save(propByteArray, propHeader);

+        Assert.assertThat(propByteArray.toString(), CoreMatchers.startsWith("#test header"));

+        Assert.assertThat(propByteArray.toString(), CoreMatchers.containsString("testKey2=testValue2"));

+        Assert.assertThat(propByteArray.toString(), CoreMatchers.containsString("testKey1=testValue1"));

+    }

+

+    @Test(expected = UnsupportedOperationException.class)

+    public final void testSetPropertyStringString() {

+        try {

+            unmodifiableProperties.setProperty(propKey1, propValue2);

+        } catch (UnsupportedOperationException exceptionMessage) {

+            Assert.assertEquals(desiredMessage, exceptionMessage.getMessage());

+            throw exceptionMessage;

+        }

+    }

+

+    @Test

+    public final void testSize() {

+        Assert.assertEquals(2, unmodifiableProperties.size());

+    }

+

+    @Test

+    public final void testStoreOutputStreamString() throws IOException {

+        OutputStream propByteArray = new ByteArrayOutputStream();

+        unmodifiableProperties.store(propByteArray, propHeader);

+        // adds comment header and streams/appends properties file into propByteArray

+        // expected = "#test header\n#<Date>\ntestKey2=testValue2\ntestKey1=testValue1"

+        Assert.assertThat(propByteArray.toString(), CoreMatchers.startsWith("#test header"));

+        Assert.assertThat(propByteArray.toString(), CoreMatchers.containsString("testKey2=testValue2"));

+        Assert.assertThat(propByteArray.toString(), CoreMatchers.containsString("testKey1=testValue1"));

+    }

+

+    @Test

+    public final void testStoreWriterString() throws IOException {

+        StringWriter writer = new StringWriter();

+        unmodifiableProperties.store(writer, propHeader);

+        Assert.assertThat(writer.toString(), CoreMatchers.startsWith("#test header"));

+        Assert.assertThat(writer.toString(), CoreMatchers.containsString("testKey2=testValue2"));

+        Assert.assertThat(writer.toString(), CoreMatchers.containsString("testKey1=testValue1"));

+    }

+

+    @Test

+    public final void testStoreToXMLOutputStreamString() throws IOException {

+        OutputStream propByteArray = new ByteArrayOutputStream();

+        unmodifiableProperties.storeToXML(propByteArray, propHeader);

+        // adds XML comment header and streams/appends XML properties file into propByteArray

+        Assert.assertThat(propByteArray.toString(), CoreMatchers.containsString("<comment>test header</comment>"));

+        Assert.assertThat(propByteArray.toString(),

+                CoreMatchers.containsString("<entry key=\"testKey2\">testValue2</entry>"));

+        Assert.assertThat(propByteArray.toString(),

+                CoreMatchers.containsString("<entry key=\"testKey1\">testValue1</entry>"));

+    }

+

+    @Test

+    public final void testStoreToXMLOutputStreamStringString() throws IOException {

+        OutputStream propByteArray = new ByteArrayOutputStream();

+        unmodifiableProperties.storeToXML(propByteArray, propHeader, "UTF-8");

+        // adds XML comment header and streams/appends XML properties file into propByteArray

+        Assert.assertThat(propByteArray.toString(), CoreMatchers.containsString("<comment>test header</comment>"));

+        Assert.assertThat(propByteArray.toString(),

+                CoreMatchers.containsString("<entry key=\"testKey2\">testValue2</entry>"));

+        Assert.assertThat(propByteArray.toString(),

+                CoreMatchers.containsString("<entry key=\"testKey1\">testValue1</entry>"));

+    }

+

+    @Test

+    public final void testStringPropertyNames() {

+        Assert.assertEquals(properties.stringPropertyNames(), unmodifiableProperties.stringPropertyNames());

+    }

+

+    @Test

+    public final void testToString() {

+        // toString=[{testKey2=testValue2, testKey1=testValue1}]

+        Assert.assertEquals(properties.toString(), unmodifiableProperties.toString());

+    }

+

+    @Test

+    public final void testValues() {

+        Assert.assertEquals(properties.values().toString(), unmodifiableProperties.values().toString());

+    }

+}

diff --git a/appc-core/appc-common-bundle/src/test/resources/invalid.json b/appc-core/appc-common-bundle/src/test/resources/invalid.json
new file mode 100644
index 000000000..cd152e0fc
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/resources/invalid.json
@@ -0,0 +1,3 @@
+{
+  name: value
+}
\ No newline at end of file
diff --git a/appc-core/appc-common-bundle/src/test/resources/org/onap/appc/i18n/TestAdditionalResources.properties b/appc-core/appc-common-bundle/src/test/resources/org/onap/appc/i18n/TestAdditionalResources.properties
new file mode 100644
index 000000000..f70db8316
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/resources/org/onap/appc/i18n/TestAdditionalResources.properties
@@ -0,0 +1,24 @@
+###
+# ============LICENSE_START=======================================================
+# ONAP : APPC
+# ================================================================================
+# Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+# ================================================================================
+# Copyright (C) 2017 Amdocs
+# =============================================================================
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+# 
+#      http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# 
+# ============LICENSE_END=========================================================
+###
+
+ADDITIONAL_RESOURCE=This is a message loaded from an additional resource bundle
diff --git a/appc-core/appc-common-bundle/src/test/resources/org/onap/appc/i18n/TestResources_de.properties b/appc-core/appc-common-bundle/src/test/resources/org/onap/appc/i18n/TestResources_de.properties
new file mode 100644
index 000000000..3bdecb11a
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/resources/org/onap/appc/i18n/TestResources_de.properties
@@ -0,0 +1,29 @@
+###
+# ============LICENSE_START=======================================================
+# ONAP : APPC
+# ================================================================================
+# Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+# ================================================================================
+# Copyright (C) 2017 Amdocs
+# =============================================================================
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+# 
+#      http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# 
+# ============LICENSE_END=========================================================
+###
+
+#
+# Message bundle for German (language de, no specific country) 
+# 
+#
+MESSAGE_TEST=Eine Nachricht f\u00FCr Unit-Tests den Ressource-Manager, arg0 = {0}, arg1 = {1}, arg2 = {2}
+TEST_001=Dies ist eine Testnachricht ohne Eins\u00FCtze bearbeitet werden!
diff --git a/appc-core/appc-common-bundle/src/test/resources/org/onap/appc/i18n/TestResources_en_US.properties b/appc-core/appc-common-bundle/src/test/resources/org/onap/appc/i18n/TestResources_en_US.properties
new file mode 100644
index 000000000..4bff0129b
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/resources/org/onap/appc/i18n/TestResources_en_US.properties
@@ -0,0 +1,28 @@
+###
+# ============LICENSE_START=======================================================
+# ONAP : APPC
+# ================================================================================
+# Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+# ================================================================================
+# Copyright (C) 2017 Amdocs
+# =============================================================================
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+# 
+#      http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# 
+# ============LICENSE_END=========================================================
+###
+
+#
+# Message bundle for English - United States (en_US).  This is also the default bundle if no other bundles are found. 
+#
+MESSAGE_TEST=A message for unit testing the resource manager, arg0={0}, arg1={1}, arg2={2}
+TEST_001=This is a test message with no inserts to be edited!
diff --git a/appc-core/appc-common-bundle/src/test/resources/valid.json b/appc-core/appc-common-bundle/src/test/resources/valid.json
new file mode 100644
index 000000000..6ce80f36f
--- /dev/null
+++ b/appc-core/appc-common-bundle/src/test/resources/valid.json
@@ -0,0 +1,4 @@
+{
+  "name": "dummy name",
+  "value": 99
+}
\ No newline at end of file