Fix sonar issues in drools-applications

Fixed various sonar issues, including moving some
code to policy-common.
Fixed some eclipse warnings, including deprecated junit APIs.

Issue-ID: POLICY-2426
Signed-off-by: Jim Hahn <jrh3@att.com>
Change-Id: I10b40c1e5af62308f2e4c315e4d399aafff2998f

8 files changed, 21 insertions, 434 deletions

diff --git a/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/drl/legacy/ControlLoopParams.java b/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/drl/legacy/ControlLoopParams.java
index 769a6d971..3eac66112 100644
--- a/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/drl/legacy/ControlLoopParams.java
+++ b/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/drl/legacy/ControlLoopParams.java
@@ -35,5 +35,7 @@ public class ControlLoopParams implements Serializable {
     private String policyName;
     private String policyScope;
     private String policyVersion;
-    private ToscaPolicy toscaPolicy;
+
+    // not serializable, thus must be transient
+    private transient ToscaPolicy toscaPolicy;
 }
diff --git a/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/eventmanager/ControlLoopEventManager2.java b/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/eventmanager/ControlLoopEventManager2.java
index f2e99a9ad..69cbe7839 100644
--- a/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/eventmanager/ControlLoopEventManager2.java
+++ b/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/eventmanager/ControlLoopEventManager2.java
@@ -100,8 +100,6 @@ public class ControlLoopEventManager2 implements ManagerContext, Serializable {
         FIRST_ONSET, SUBSEQUENT_ONSET, FIRST_ABATEMENT, SUBSEQUENT_ABATEMENT, SYNTAX_ERROR
     }
 
-    // TODO limit the number of policies that may be executed for a single event?
-
     /**
      * {@code True} if this object was created by this JVM instance, {@code false}
      * otherwise. This will be {@code false} if this object is reconstituted from a
diff --git a/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/eventmanager/EventManagerServices.java b/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/eventmanager/EventManagerServices.java
index d8668e47d..3fbedcb1f 100644
--- a/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/eventmanager/EventManagerServices.java
+++ b/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/eventmanager/EventManagerServices.java
@@ -27,6 +27,7 @@ import java.util.Map;
 import java.util.Properties;
 import lombok.Getter;
 import org.onap.policy.common.parameters.ValidationResult;
+import org.onap.policy.common.utils.properties.PropertyObjectUtils;
 import org.onap.policy.common.utils.resources.ResourceUtils;
 import org.onap.policy.controlloop.actor.guard.GuardActorServiceProvider;
 import org.onap.policy.controlloop.actor.guard.GuardConfig;
@@ -38,7 +39,6 @@ import org.onap.policy.controlloop.ophistory.OperationHistoryDataManager;
 import org.onap.policy.controlloop.ophistory.OperationHistoryDataManagerImpl;
 import org.onap.policy.controlloop.ophistory.OperationHistoryDataManagerParams;
 import org.onap.policy.controlloop.ophistory.OperationHistoryDataManagerStub;
-import org.onap.policy.controlloop.utils.ControlLoopUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -86,8 +86,8 @@ public class EventManagerServices {
             Properties props = new Properties();
             props.load(inpstr);
 
-            Map<String, Object> parameters = ControlLoopUtils.toObject(props, ACTOR_SERVICE_PROPERTIES);
-            ControlLoopUtils.compressLists(parameters);
+            Map<String, Object> parameters = PropertyObjectUtils.toObject(props, ACTOR_SERVICE_PROPERTIES);
+            PropertyObjectUtils.compressLists(parameters);
 
             actorService.configure(parameters);
             actorService.start();
@@ -157,7 +157,7 @@ public class EventManagerServices {
      */
     public OperationHistoryDataManagerImpl makeDataManager(Properties props) {
         try {
-            Map<String, Object> parameters = ControlLoopUtils.toObject(props, DATA_MANAGER_PROPERTIES);
+            Map<String, Object> parameters = PropertyObjectUtils.toObject(props, DATA_MANAGER_PROPERTIES);
             OperationHistoryDataManagerParams params = Util.translate(DATA_MANAGER_PROPERTIES, parameters,
                             OperationHistoryDataManagerParams.class);
             ValidationResult result = params.validate(DATA_MANAGER_PROPERTIES);
diff --git a/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/processor/ControlLoopProcessor.java b/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/processor/ControlLoopProcessor.java
index b6c7c8b7a..104e28cd0 100644
--- a/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/processor/ControlLoopProcessor.java
+++ b/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/processor/ControlLoopProcessor.java
@@ -61,8 +61,9 @@ public class ControlLoopProcessor implements Serializable {
     @Getter
     private transient ToscaPolicy toscaOpPolicy;
 
+    // not serializable, thus must be transient
     @Getter
-    private DroolsPolicy domainOpPolicy;
+    private transient DroolsPolicy domainOpPolicy;
 
     /**
      * Construct an instance from yaml.
diff --git a/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/utils/ControlLoopUtils.java b/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/utils/ControlLoopUtils.java
index d311b07fc..3e990efc4 100644
--- a/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/utils/ControlLoopUtils.java
+++ b/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/utils/ControlLoopUtils.java
@@ -18,14 +18,6 @@
 
 package org.onap.policy.controlloop.utils;
 
-import java.util.ArrayList;
-import java.util.Iterator;
-import java.util.LinkedHashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Properties;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
 import org.onap.policy.controlloop.ControlLoopException;
 import org.onap.policy.controlloop.drl.legacy.ControlLoopParams;
 import org.onap.policy.controlloop.processor.ControlLoopProcessor;
@@ -39,7 +31,6 @@ import org.slf4j.LoggerFactory;
 public class ControlLoopUtils {
 
     public static final Logger logger = LoggerFactory.getLogger(ControlLoopUtils.class);
-    private static final Pattern NAME_PAT = Pattern.compile("(.*)\\[(\\d{1,3})\\]");
 
     private ControlLoopUtils() {
         super();
@@ -59,206 +50,4 @@ public class ControlLoopUtils {
             return null;
         }
     }
-
-    // TODO move the following to policy-common/utils
-
-    /**
-     * Converts a set of properties to a Map. Supports json-path style property names with
-     * "." separating components, where components may have an optional subscript.
-     *
-     * @param properties properties to be converted
-     * @param prefix properties whose names begin with this prefix are included. The
-     *        prefix is stripped from the name before adding the value to the map
-     * @return a hierarchical map representing the properties
-     */
-    public static Map<String, Object> toObject(Properties properties, String prefix) {
-        String dottedPrefix = prefix + (prefix.isEmpty() || prefix.endsWith(".") ? "" : ".");
-        int pfxlen = dottedPrefix.length();
-
-        Map<String, Object> map = new LinkedHashMap<>();
-
-        for (String name : properties.stringPropertyNames()) {
-            if (name.startsWith(dottedPrefix)) {
-                String[] components = name.substring(pfxlen).split("[.]");
-                setProperty(map, components, properties.getProperty(name));
-            }
-        }
-
-        return map;
-    }
-
-    /**
-     * Sets a property within a hierarchical map.
-     *
-     * @param map map into which the value should be placed
-     * @param names property name components
-     * @param value value to be placed into the map
-     */
-    private static void setProperty(Map<String, Object> map, String[] names, String value) {
-        Map<String, Object> node = map;
-
-        final int lastComp = names.length - 1;
-
-        // process all but the final component
-        for (int comp = 0; comp < lastComp; ++comp) {
-            node = getNode(node, names[comp]);
-        }
-
-        // process the final component
-        String name = names[lastComp];
-        Matcher matcher = NAME_PAT.matcher(name);
-
-        if (!matcher.matches()) {
-            // no subscript
-            node.put(name, value);
-            return;
-        }
-
-        // subscripted
-        List<Object> array = getArray(node, matcher.group(1));
-        int index = Integer.parseInt(matcher.group(2));
-        expand(array, index);
-        array.set(index, value);
-    }
-
-    /**
-     * Gets a node.
-     *
-     * @param map map from which to get the object
-     * @param name name of the element to get from the map, with an optional subscript
-     * @return a Map
-     */
-    @SuppressWarnings("unchecked")
-    private static Map<String, Object> getNode(Map<String, Object> map, String name) {
-        Matcher matcher = NAME_PAT.matcher(name);
-
-        if (!matcher.matches()) {
-            // no subscript
-            return getObject(map, name);
-        }
-
-        // subscripted
-        List<Object> array = getArray(map, matcher.group(1));
-        int index = Integer.parseInt(matcher.group(2));
-        expand(array, index);
-
-        Object item = array.get(index);
-        if (item instanceof Map) {
-            return (Map<String, Object>) item;
-
-        } else {
-            LinkedHashMap<String, Object> result = new LinkedHashMap<>();
-            array.set(index, result);
-            return result;
-        }
-    }
-
-    /**
-     * Ensures that an array's size is large enough to hold the specified element.
-     *
-     * @param array array to be expanded
-     * @param index index of the desired element
-     */
-    private static void expand(List<Object> array, int index) {
-        while (array.size() <= index) {
-            array.add(null);
-        }
-    }
-
-    /**
-     * Gets an object (i.e., Map) from a map. If the particular element is not a Map, then
-     * it is replaced with an empty Map.
-     *
-     * @param map map from which to get the object
-     * @param name name of the element to get from the map, without any subscript
-     * @return a Map
-     */
-    private static Map<String, Object> getObject(Map<String, Object> map, String name) {
-        @SuppressWarnings("unchecked")
-        Map<String, Object> result = (Map<String, Object>) map.compute(name, (key, value) -> {
-            if (value instanceof Map) {
-                return value;
-            } else {
-                return new LinkedHashMap<>();
-            }
-        });
-
-        return result;
-    }
-
-    /**
-     * Gets an array from a map. If the particular element is not an array, then it is
-     * replaced with an empty array.
-     *
-     * @param map map from which to get the array
-     * @param name name of the element to get from the map, without any subscript
-     * @return an array
-     */
-    private static List<Object> getArray(Map<String, Object> map, String name) {
-        @SuppressWarnings("unchecked")
-        List<Object> result = (List<Object>) map.compute(name, (key, value) -> {
-            if (value instanceof List) {
-                return value;
-            } else {
-                return new ArrayList<>();
-            }
-        });
-
-        return result;
-    }
-
-    /**
-     * Compresses lists contained within a generic object, removing all {@code null}
-     * items.
-     *
-     * @param object object to be compressed
-     * @return the original object, modified in place
-     */
-    public static Object compressLists(Object object) {
-        if (object instanceof Map) {
-            @SuppressWarnings("unchecked")
-            Map<String, Object> asMap = (Map<String, Object>) object;
-            compressMapValues(asMap);
-
-        } else if (object instanceof List) {
-            @SuppressWarnings("unchecked")
-            List<Object> asList = (List<Object>) object;
-            compressListItems(asList);
-        }
-
-        // else: ignore anything else
-
-        return object;
-    }
-
-    /**
-     * Walks a hierarchical map and removes {@code null} items found in any Lists.
-     *
-     * @param map map whose lists are to be compressed
-     */
-    private static void compressMapValues(Map<String, Object> map) {
-        for (Object value : map.values()) {
-            compressLists(value);
-        }
-    }
-
-    /**
-     * Removes {@code null} items from the list. In addition, it walks the items within
-     * the list, compressing them, as well.
-     *
-     * @param list the list to be compressed
-     */
-    private static void compressListItems(List<Object> list) {
-        Iterator<Object> iter = list.iterator();
-        while (iter.hasNext()) {
-            Object item = iter.next();
-            if (item == null) {
-                // null item - remove it
-                iter.remove();
-
-            } else {
-                compressLists(item);
-            }
-        }
-    }
 }
diff --git a/controlloop/common/eventmanager/src/test/java/org/onap/policy/controlloop/eventmanager/ControlLoopEventManagerTest.java b/controlloop/common/eventmanager/src/test/java/org/onap/policy/controlloop/eventmanager/ControlLoopEventManagerTest.java
index 266ad1ac9..db16c4528 100644
--- a/controlloop/common/eventmanager/src/test/java/org/onap/policy/controlloop/eventmanager/ControlLoopEventManagerTest.java
+++ b/controlloop/common/eventmanager/src/test/java/org/onap/policy/controlloop/eventmanager/ControlLoopEventManagerTest.java
@@ -27,7 +27,7 @@ import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertSame;
 import static org.junit.Assert.assertTrue;
-import static org.mockito.Matchers.any;
+import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.verify;
@@ -50,9 +50,7 @@ import org.jetbrains.annotations.NotNull;
 import org.junit.AfterClass;
 import org.junit.Before;
 import org.junit.BeforeClass;
-import org.junit.Rule;
 import org.junit.Test;
-import org.junit.rules.ExpectedException;
 import org.onap.policy.common.endpoints.http.server.HttpServletServerFactoryInstance;
 import org.onap.policy.common.utils.coder.CoderException;
 import org.onap.policy.common.utils.coder.StandardCoder;
@@ -85,10 +83,6 @@ public class ControlLoopEventManagerTest {
     private static final String TWO_ONSET_TEST = "TwoOnsetTest";
     private static final String VNF_UUID = "83f674e8-7555-44d7-9a39-bdc3770b0491";
 
-
-    @Rule
-    public ExpectedException thrown = ExpectedException.none();
-
     private VirtualControlLoopEvent onset;
     private LockCallback callback;
 
@@ -405,7 +399,7 @@ public class ControlLoopEventManagerTest {
         VirtualControlLoopNotification notification = manager.activate(yamlString, event);
         assertNotNull(notification);
         assertEquals(ControlLoopNotificationType.ACTIVE, notification.getNotification());
-        
+
         event.getAai().put(VSERVER_NAME, "testVserverName");
 
         // serialize and de-serialize manager
@@ -452,7 +446,7 @@ public class ControlLoopEventManagerTest {
                         .hasMessage("Do not have a current operation.");
 
         assertNull(manager.unlockCurrentOperation());
-        
+
         event.getAai().put(VSERVER_NAME, "testVserverName");
 
         ControlLoopOperationManager clom = manager.processControlLoop();
diff --git a/controlloop/common/eventmanager/src/test/java/org/onap/policy/controlloop/processor/ControlLoopProcessorTest.java b/controlloop/common/eventmanager/src/test/java/org/onap/policy/controlloop/processor/ControlLoopProcessorTest.java
index ae6af6c07..47e7d5344 100644
--- a/controlloop/common/eventmanager/src/test/java/org/onap/policy/controlloop/processor/ControlLoopProcessorTest.java
+++ b/controlloop/common/eventmanager/src/test/java/org/onap/policy/controlloop/processor/ControlLoopProcessorTest.java
@@ -159,29 +159,15 @@ public class ControlLoopProcessorTest {
         InputStream is = new FileInputStream(new File("src/test/resources/test.yaml"));
         String yamlString = IOUtils.toString(is, StandardCharsets.UTF_8);
 
-        ControlLoopProcessor clProcessor = new ControlLoopProcessor(yamlString);
-        clProcessor.getCurrentPolicy();
-        clProcessor.nextPolicyForResult(PolicyResult.SUCCESS);
-
-        clProcessor = new ControlLoopProcessor(yamlString);
-        clProcessor.getCurrentPolicy();
-        clProcessor.nextPolicyForResult(PolicyResult.FAILURE);
-
-        clProcessor = new ControlLoopProcessor(yamlString);
-        clProcessor.getCurrentPolicy();
-        clProcessor.nextPolicyForResult(PolicyResult.FAILURE_EXCEPTION);
-
-        clProcessor = new ControlLoopProcessor(yamlString);
-        clProcessor.getCurrentPolicy();
-        clProcessor.nextPolicyForResult(PolicyResult.FAILURE_GUARD);
-
-        clProcessor = new ControlLoopProcessor(yamlString);
-        clProcessor.getCurrentPolicy();
-        clProcessor.nextPolicyForResult(PolicyResult.FAILURE_RETRIES);
+        for (PolicyResult result : PolicyResult.values()) {
+            checkResult(yamlString, result);
+        }
+    }
 
-        clProcessor = new ControlLoopProcessor(yamlString);
+    private void checkResult(String yamlString, PolicyResult result) throws ControlLoopException {
+        ControlLoopProcessor clProcessor = new ControlLoopProcessor(yamlString);
         clProcessor.getCurrentPolicy();
-        clProcessor.nextPolicyForResult(PolicyResult.FAILURE_TIMEOUT);
+        clProcessor.nextPolicyForResult(result);
     }
 
     /**
diff --git a/controlloop/common/eventmanager/src/test/java/org/onap/policy/controlloop/utils/ControlLoopUtilsTest.java b/controlloop/common/eventmanager/src/test/java/org/onap/policy/controlloop/utils/ControlLoopUtilsTest.java
index 2f14954ca..7238ba05b 100644
--- a/controlloop/common/eventmanager/src/test/java/org/onap/policy/controlloop/utils/ControlLoopUtilsTest.java
+++ b/controlloop/common/eventmanager/src/test/java/org/onap/policy/controlloop/utils/ControlLoopUtilsTest.java
@@ -1,5 +1,7 @@
 /*-
  * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
  * Copyright (C) 2019-2020 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -22,19 +24,9 @@ import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertSame;
 
-import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Paths;
-import java.util.AbstractSet;
-import java.util.Arrays;
-import java.util.Iterator;
-import java.util.LinkedHashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Properties;
-import java.util.Set;
 import org.junit.Test;
-import org.onap.policy.common.utils.coder.CoderException;
 import org.onap.policy.common.utils.coder.StandardCoder;
 import org.onap.policy.controlloop.drl.legacy.ControlLoopParams;
 import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicy;
@@ -55,179 +47,4 @@ public class ControlLoopUtilsTest {
 
         assertNull(ControlLoopUtils.toControlLoopParams(null));
     }
-
-    @Test
-    public void testToObject() {
-        Map<String, String> map = Map.of("abc", "def", "ghi", "jkl");
-        Properties props = new Properties();
-        props.putAll(map);
-
-        // with empty prefix
-        Map<String, Object> result = ControlLoopUtils.toObject(props, "");
-        assertEquals(map, result);
-
-        // with dotted prefix - other items skipped
-        map = Map.of("pfx.abc", "def", "ghi", "jkl", "pfx.mno", "pqr", "differentpfx.stu", "vwx");
-        props.clear();
-        props.putAll(Map.of("pfx.abc", "def", "ghi", "jkl", "pfx.mno", "pqr", "differentpfx.stu", "vwx"));
-        result = ControlLoopUtils.toObject(props, "pfx.");
-        map = Map.of("abc", "def", "mno", "pqr");
-        assertEquals(map, result);
-
-        // undotted prefix - still skips other items
-        result = ControlLoopUtils.toObject(props, "pfx");
-        assertEquals(map, result);
-    }
-
-    @Test
-    public void testSetProperty() {
-        // one, two, and three components in the name, the last two with subscripts
-        Map<String, Object> map = Map.of("one", "one.abc", "two.def", "two.ghi", "three.jkl.mno[0]", "three.pqr",
-                        "three.jkl.mno[1]", "three.stu");
-        Properties props = new Properties();
-        props.putAll(map);
-
-        Map<String, Object> result = ControlLoopUtils.toObject(props, "");
-        // @formatter:off
-        map = Map.of(
-                "one", "one.abc",
-                "two", Map.of("def", "two.ghi"),
-                "three", Map.of("jkl",
-                            Map.of("mno",
-                                List.of("three.pqr", "three.stu"))));
-        // @formatter:on
-        assertEquals(map, result);
-    }
-
-    @Test
-    public void testGetNode() {
-        Map<String, Object> map = Map.of("abc[0].def", "node.ghi", "abc[0].jkl", "node.mno", "abc[1].def", "node.pqr");
-        Properties props = new Properties();
-        props.putAll(map);
-
-        Map<String, Object> result = ControlLoopUtils.toObject(props, "");
-        // @formatter:off
-        map = Map.of(
-                "abc",
-                    List.of(
-                        Map.of("def", "node.ghi", "jkl", "node.mno"),
-                        Map.of("def", "node.pqr")
-                    ));
-        // @formatter:on
-        assertEquals(map, result);
-
-    }
-
-    @Test
-    public void testExpand() {
-        // add subscripts out of order
-        Properties props = makeProperties("abc[2]", "expand.def", "abc[1]", "expand.ghi");
-
-        Map<String, Object> result = ControlLoopUtils.toObject(props, "");
-        // @formatter:off
-        Map<String,Object> map =
-            Map.of("abc",
-                Arrays.asList(null, "expand.ghi", "expand.def"));
-        // @formatter:on
-        assertEquals(map, result);
-
-    }
-
-    @Test
-    public void testGetObject() {
-        // first value is primitive, while second is a map
-        Properties props = makeProperties("object.abc", "object.def", "object.abc.ghi", "object.jkl");
-
-        Map<String, Object> result = ControlLoopUtils.toObject(props, "");
-        // @formatter:off
-        Map<String,Object> map =
-            Map.of("object",
-                Map.of("abc",
-                    Map.of("ghi", "object.jkl")));
-        // @formatter:on
-        assertEquals(map, result);
-    }
-
-    @Test
-    public void testGetArray() {
-        // first value is primitive, while second is an array
-        Properties props = makeProperties("array.abc", "array.def", "array.abc[0].ghi", "array.jkl");
-
-        Map<String, Object> result = ControlLoopUtils.toObject(props, "");
-        // @formatter:off
-        Map<String,Object> map =
-            Map.of("array",
-                Map.of("abc",
-                    List.of(
-                        Map.of("ghi", "array.jkl"))));
-        // @formatter:on
-        assertEquals(map, result);
-    }
-
-    @Test
-    @SuppressWarnings("unchecked")
-    public void testCompressLists() throws IOException, CoderException {
-        assertEquals("plain-string", ControlLoopUtils.compressLists("plain-string").toString());
-
-        // @formatter:off
-        Map<String, Object> map =
-            Map.of(
-                "cmp.abc", "cmp.def",
-                "cmp.ghi",
-                    Arrays.asList(null, "cmp.list1", null, "cmp.list2",
-                        Map.of("cmp.map", Arrays.asList("cmp.map.list1", "cmp.map1.list2", null))));
-        // @formatter:on
-
-        // the data structure needs to be modifiable, so we'll encode/decode it
-        StandardCoder coder = new StandardCoder();
-        map = coder.decode(coder.encode(map), LinkedHashMap.class);
-
-        ControlLoopUtils.compressLists(map);
-
-        // @formatter:off
-        Map<String, Object> expected =
-            Map.of(
-                "cmp.abc", "cmp.def",
-                "cmp.ghi",
-                    Arrays.asList("cmp.list1", "cmp.list2",
-                        Map.of("cmp.map", Arrays.asList("cmp.map.list1", "cmp.map1.list2"))));
-        // @formatter:on
-        assertEquals(expected, map);
-    }
-
-    /**
-     * Makes properties containing the specified key/value pairs. The property set returns
-     * names in the order listed.
-     *
-     * @return a new properties containing the specified key/value pairs
-     */
-    private Properties makeProperties(String key1, String value1, String key2, String value2) {
-        // control the order in which the names are returned
-        List<String> keyList = List.of(key1, key2);
-
-        Set<String> keySet = new AbstractSet<>() {
-            @Override
-            public Iterator<String> iterator() {
-                return keyList.iterator();
-            }
-
-            @Override
-            public int size() {
-                return 2;
-            }
-        };
-
-        Properties props = new Properties() {
-            private static final long serialVersionUID = 1L;
-
-            @Override
-            public Set<String> stringPropertyNames() {
-                return keySet;
-            }
-        };
-
-        props.putAll(Map.of(key1, value1, key2, value2));
-
-        return props;
-    }
 }