Fix minor sonar issues

Signed-off-by: Francis Toth <francis.toth@yoppworks.com>
Change-Id: Iea540bb663429d55ce90879f9d9a22888c583833
Issue-ID: AAI-2128

12 files changed, 127 insertions, 140 deletions

diff --git a/aai-core/src/main/java/org/onap/aai/rest/RestHandlerService.java b/aai-core/src/main/java/org/onap/aai/rest/RestHandlerService.java
index aeb58c4b..e3ac2b26 100644
--- a/aai-core/src/main/java/org/onap/aai/rest/RestHandlerService.java
+++ b/aai-core/src/main/java/org/onap/aai/rest/RestHandlerService.java
@@ -1,4 +1,4 @@
-/**
+/*
  * ============LICENSE_START=======================================================
  * org.onap.aai
  * ================================================================================
@@ -24,10 +24,9 @@ import java.util.concurrent.Executors;
 import java.util.concurrent.ThreadPoolExecutor;
 
 public class RestHandlerService {
-    private static RestHandlerService single_instance = null;
+    private static RestHandlerService singleInstance = null;
     public ThreadPoolExecutor executor;
 
-    // private constructor restricted to this class itself
     private RestHandlerService() {
         executor = (ThreadPoolExecutor) Executors.newFixedThreadPool(50);
     }
@@ -38,9 +37,9 @@ public class RestHandlerService {
      * @return single instance of RestHandlerService
      */
     public static RestHandlerService getInstance() {
-        if (single_instance == null) {
-            single_instance = new RestHandlerService();
+        if (singleInstance == null) {
+            singleInstance = new RestHandlerService();
         }
-        return single_instance;
+        return singleInstance;
     }
 }
diff --git a/aai-core/src/main/java/org/onap/aai/serialization/engines/query/QueryEngine.java b/aai-core/src/main/java/org/onap/aai/serialization/engines/query/QueryEngine.java
index b250d8f3..41d97077 100644
--- a/aai-core/src/main/java/org/onap/aai/serialization/engines/query/QueryEngine.java
+++ b/aai-core/src/main/java/org/onap/aai/serialization/engines/query/QueryEngine.java
@@ -1,4 +1,4 @@
-/**
+/*
  * ============LICENSE_START=======================================================
  * org.onap.aai
  * ================================================================================
@@ -34,7 +34,7 @@ import org.onap.aai.introspection.Loader;
 
 public abstract class QueryEngine {
 
-    final protected GraphTraversalSource g;
+    protected final GraphTraversalSource g;
     protected double dbTimeMsecs = 0;
 
     /**
@@ -177,5 +177,4 @@ public abstract class QueryEngine {
     public abstract List<Path> findCousinsAsPath(Vertex start);
 
     public abstract double getDBTimeMsecs();
-
 }
diff --git a/aai-core/src/test/java/org/onap/aai/dbmap/AAIGraphTest.java b/aai-core/src/test/java/org/onap/aai/dbmap/AAIGraphTest.java
index f2c7b27c..cc420018 100644
--- a/aai-core/src/test/java/org/onap/aai/dbmap/AAIGraphTest.java
+++ b/aai-core/src/test/java/org/onap/aai/dbmap/AAIGraphTest.java
@@ -1,4 +1,4 @@
-/**
+/*
  * ============LICENSE_START=======================================================
  * org.onap.aai
  * ================================================================================
@@ -55,7 +55,7 @@ public class AAIGraphTest extends AAISetup {
     }
 
     @Test
-    public void getRealtimeInstanceConnectionName() throws Exception {
+    public void getRealtimeInstanceConnectionName() {
 
         JanusGraphManagement graphMgt = AAIGraph.getInstance().getGraph().openManagement();
         String connectionInstanceName =
@@ -96,7 +96,7 @@ public class AAIGraphTest extends AAISetup {
 
     @Ignore("Need to create schema specific to the test")
     @Test
-    public void checkIndexOfAliasedIndexedProps() throws Exception {
+    public void checkIndexOfAliasedIndexedProps() {
         Set<String> aliasedIndexedProps = getAliasedIndexedProps();
         JanusGraphManagement graphMgt = AAIGraph.getInstance().getGraph().openManagement();
         for (String aliasedIndexedProp : aliasedIndexedProps) {
diff --git a/aai-els-onap-logging/src/main/java/org/onap/aai/util/HbaseSaltPrefixer.java b/aai-els-onap-logging/src/main/java/org/onap/aai/util/HbaseSaltPrefixer.java
index fef10a77..95f9c1b7 100644
--- a/aai-els-onap-logging/src/main/java/org/onap/aai/util/HbaseSaltPrefixer.java
+++ b/aai-els-onap-logging/src/main/java/org/onap/aai/util/HbaseSaltPrefixer.java
@@ -1,4 +1,4 @@
-/**
+/*
  * ============LICENSE_START=======================================================
  * org.onap.aai
  * ================================================================================
@@ -27,33 +27,20 @@ package org.onap.aai.util;
  * as these keys are generated in a couple places, I made a class to contain that logic
  */
 public class HbaseSaltPrefixer {
-    private int NUM_REGION_BUCKETS = 3; // the number of hbase region servers per cluster
+     // the number of hbase region servers per cluster
+    private static int NUM_REGION_BUCKETS = 3;
 
     private static class SingletonHolder {
         private static final HbaseSaltPrefixer INSTANCE = new HbaseSaltPrefixer();
     }
 
-    /**
-     * Instantiates a new hbase salt prefixer.
-     */
     private HbaseSaltPrefixer() {
     }
 
-    /**
-     * Gets the single instance of HbaseSaltPrefixer.
-     *
-     * @return single instance of HbaseSaltPrefixer
-     */
     public static HbaseSaltPrefixer getInstance() {
         return SingletonHolder.INSTANCE;
     }
 
-    /**
-     * Prepend salt.
-     *
-     * @param key the key
-     * @return the string
-     */
     public String prependSalt(String key) {
         int salt = Math.abs(key.hashCode()) % NUM_REGION_BUCKETS;
         return salt + "-" + key;
diff --git a/aai-els-onap-logging/src/test/java/org/onap/aai/logging/LoggingContextTest.java b/aai-els-onap-logging/src/test/java/org/onap/aai/logging/LoggingContextTest.java
index 245840bc..4fe60315 100644
--- a/aai-els-onap-logging/src/test/java/org/onap/aai/logging/LoggingContextTest.java
+++ b/aai-els-onap-logging/src/test/java/org/onap/aai/logging/LoggingContextTest.java
@@ -1,4 +1,4 @@
-/**
+/*
  * ============LICENSE_START=======================================================
  * org.onap.aai
  * ================================================================================
@@ -39,7 +39,7 @@ public class LoggingContextTest {
         LoggingContext.elapsedTime(300, TimeUnit.MILLISECONDS);
         assertEquals(MDC.get(LoggingContext.LoggingField.ELAPSED_TIME.toString()), "300");
         LoggingContext.init();
-        assertTrue(MDC.get(LoggingContext.LoggingField.ELAPSED_TIME.toString()) == null);
+        assertNull(MDC.get(LoggingContext.LoggingField.ELAPSED_TIME.toString()));
     }
     @Test
     public void stopWatchTest() {
@@ -60,7 +60,7 @@ public class LoggingContextTest {
         assertEquals(testServiceName, MDC.get(LoggingContext.LoggingField.SERVICE_NAME.toString()));
 
         LoggingContext.clear();
-        assertTrue(MDC.get(LoggingContext.LoggingField.SERVICE_NAME.toString()) == null);
+        assertNull(MDC.get(LoggingContext.LoggingField.SERVICE_NAME.toString()));
 
     }
 
@@ -71,7 +71,7 @@ public class LoggingContextTest {
         assertEquals(testServiceName, MDC.get(LoggingContext.LoggingField.SERVICE_NAME.toString()));
 
         LoggingContext.remove(LoggingContext.LoggingField.SERVICE_NAME.toString());
-        assertTrue(MDC.get(LoggingContext.LoggingField.SERVICE_NAME.toString()) == null);
+        assertNull(MDC.get(LoggingContext.LoggingField.SERVICE_NAME.toString()));
 
     }
 
diff --git a/aai-rest/src/main/java/org/onap/aai/restclient/ClientType.java b/aai-rest/src/main/java/org/onap/aai/restclient/ClientType.java
index 4633b425..9ca9a7c2 100644
--- a/aai-rest/src/main/java/org/onap/aai/restclient/ClientType.java
+++ b/aai-rest/src/main/java/org/onap/aai/restclient/ClientType.java
@@ -1,4 +1,4 @@
-/**
+/*
  * ============LICENSE_START=======================================================
  * org.onap.aai
  * ================================================================================
@@ -7,9 +7,9 @@
  * 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
- *
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
  * 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.
@@ -22,4 +22,7 @@ package org.onap.aai.restclient;
 
 public class ClientType {
     public static final String AAI = "aai-rest-client";
+
+    private ClientType() {
+    }
 }
diff --git a/aai-schema-abstraction/src/main/java/org/onap/aai/schemaif/SchemaProvider.java b/aai-schema-abstraction/src/main/java/org/onap/aai/schemaif/SchemaProvider.java
index 1e798196..5aa8d688 100644
--- a/aai-schema-abstraction/src/main/java/org/onap/aai/schemaif/SchemaProvider.java
+++ b/aai-schema-abstraction/src/main/java/org/onap/aai/schemaif/SchemaProvider.java
@@ -21,77 +21,75 @@
 
 package org.onap.aai.schemaif;
 
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-
 import org.onap.aai.schemaif.definitions.EdgeSchema;
 import org.onap.aai.schemaif.definitions.VertexSchema;
 
+import java.util.Map;
+import java.util.Set;
+
 public interface SchemaProvider {
-    
+
     /**
      * Load the schema into memory
      */
-    public void loadSchema() throws SchemaProviderException;
-    
+    void loadSchema() throws SchemaProviderException;
+
     /**
      * Get the identifier for the more recent version of the schema
      *
      * @return The schema version identifier
      */
-    public String getLatestSchemaVersion() throws SchemaProviderException;
-    
+    String getLatestSchemaVersion() throws SchemaProviderException;
+
     /**
      * Get the schema definition for a vertex
      *
      * @param vertexName - Name of the vertex
      * @param schemaVersion - Version of the schema to use
-     * 
+     *
      * @return The vertex schema definition
      */
-    public VertexSchema getVertexSchema(String vertexName, String schemaVersion) throws SchemaProviderException;
-    
+    VertexSchema getVertexSchema(String vertexName, String schemaVersion) throws SchemaProviderException;
+
     /**
      * Get the schema definition for an edge
      *
      * @param edgeType - Type of the edge
      * @param sourceVertex - The source vertex for the edge
      * @param targetVertex - The target vertex for the edge
-     * @param schemaVersion - Version of the schema to use
-     * 
+     * @param version - Version of the schema to use
+     *
      * @return The edge schema definition
      */
-    public EdgeSchema getEdgeSchema(String edgeType, String sourceVertex, String targetVertex, String version) throws SchemaProviderException;
+    EdgeSchema getEdgeSchema(String edgeType, String sourceVertex, String targetVertex, String version) throws SchemaProviderException;
 
     /**
      * Get the list of edge definitions which are adjacent to the given vertex
      *
      * @param vertexType - Type of the vertex
-     * @param schemaVersion - Version of the schema to use
-     * 
+     * @param version - Version of the schema to use
+     *
      * @return The list of edge schema definitions
      */
-    public Set<EdgeSchema> getAdjacentEdgeSchema(String vertexType, String version) throws SchemaProviderException;
-    
+    Set<EdgeSchema> getAdjacentEdgeSchema(String vertexType, String version) throws SchemaProviderException;
+
     /**
      * Get the list of edge definitions which are valid for the given source and target
      *
      * @param sourceType - Type of the source vertex
      * @param targetType - Type of the target vertex
-     * @param schemaVersion - Version of the schema to use
-     * 
+     * @param version - Version of the schema to use
+     *
      * @return The list of edge schema definitions
      */
-    public Set<EdgeSchema> getEdgeSchemaForSourceTarget(String sourceType, String targetType, String version) throws SchemaProviderException;
+    Set<EdgeSchema> getEdgeSchemaForSourceTarget(String sourceType, String targetType, String version) throws SchemaProviderException;
 
     /**
      * Get vertex map for a schema version
      *
      * @param schemaVersion - Version of the schema to use
-     * 
+     *
      * @return The list of vertex types
      */
-    public Map<String, VertexSchema> getVertexMap(String schemaVersion) throws SchemaProviderException;
-
+    Map<String, VertexSchema> getVertexMap(String schemaVersion) throws SchemaProviderException;
  }
diff --git a/aai-schema-abstraction/src/main/java/org/onap/aai/schemaif/definitions/types/DataType.java b/aai-schema-abstraction/src/main/java/org/onap/aai/schemaif/definitions/types/DataType.java
index a0586037..2e2884b4 100644
--- a/aai-schema-abstraction/src/main/java/org/onap/aai/schemaif/definitions/types/DataType.java
+++ b/aai-schema-abstraction/src/main/java/org/onap/aai/schemaif/definitions/types/DataType.java
@@ -1,4 +1,4 @@
-/**
+/*
  * ============LICENSE_START=======================================================
  * org.onap.aai
  * ================================================================================
@@ -21,11 +21,9 @@
 
 package org.onap.aai.schemaif.definitions.types;
 
-import org.onap.aai.schemaif.SchemaProviderException;
-
 public abstract class DataType {
     public enum Type {
-        STRING, 
+        STRING,
         BOOL,
         INT,
         LONG,
@@ -34,9 +32,9 @@ public abstract class DataType {
         MAP,
         COMPLEX
     }
-    
-    private Type type;
-    
+
+    private final Type type;
+
     public DataType(Type type) {
         this.type = type;
     }
@@ -44,9 +42,9 @@ public abstract class DataType {
     public Type getType() {
         return type;
     }
-    
+
     public abstract Object validateValue(String value);
-    
+
     public String toString() {
         return getType().toString();
     }
diff --git a/aai-schema-abstraction/src/main/java/org/onap/aai/schemaif/json/SchemaServiceResponse.java b/aai-schema-abstraction/src/main/java/org/onap/aai/schemaif/json/SchemaServiceResponse.java
index 7fa123a5..0bc1760b 100644
--- a/aai-schema-abstraction/src/main/java/org/onap/aai/schemaif/json/SchemaServiceResponse.java
+++ b/aai-schema-abstraction/src/main/java/org/onap/aai/schemaif/json/SchemaServiceResponse.java
@@ -1,4 +1,4 @@
-/**
+/*
  * ============LICENSE_START=======================================================
  * org.onap.aai
  * ================================================================================
@@ -20,26 +20,24 @@
  */
 package org.onap.aai.schemaif.json;
 
-import org.onap.aai.schemaif.SchemaProviderException;
-import org.onap.aai.schemaif.json.definitions.JsonSchema;
-
 import com.google.gson.Gson;
 import com.google.gson.GsonBuilder;
-import com.google.gson.JsonObject;
 import com.google.gson.annotations.SerializedName;
+import org.onap.aai.schemaif.SchemaProviderException;
+import org.onap.aai.schemaif.json.definitions.JsonSchema;
 
 public class SchemaServiceResponse {
     public static final String SCHEMA_TYPE_OXM = "oxm";
     public static final String SCHEMA_TYPE_JSON = "json";
-    
+
     private static final Gson gson = new GsonBuilder().create();
 
     @SerializedName("schema-version")
     private String version;
-    
+
     @SerializedName("schema-content")
     private JsonSchema data;
-   
+
     public String getVersion() {
         return version;
     }
@@ -57,11 +55,10 @@ public class SchemaServiceResponse {
             if (json == null || json.isEmpty()) {
                 throw new SchemaProviderException("Empty schema-service response");
             }
-            
+
             return gson.fromJson(json, SchemaServiceResponse.class);
         } catch (Exception ex) {
             throw new SchemaProviderException("Invalid response from schema service: " + ex.getMessage());
         }
     }
-
 }
diff --git a/aai-schema-abstraction/src/main/java/org/onap/aai/schemaif/oxm/OxmSchemaProvider.java b/aai-schema-abstraction/src/main/java/org/onap/aai/schemaif/oxm/OxmSchemaProvider.java
index 0ad8bf45..bced602c 100644
--- a/aai-schema-abstraction/src/main/java/org/onap/aai/schemaif/oxm/OxmSchemaProvider.java
+++ b/aai-schema-abstraction/src/main/java/org/onap/aai/schemaif/oxm/OxmSchemaProvider.java
@@ -1,4 +1,4 @@
-/**
+/*
  * ============LICENSE_START=======================================================
  * org.onap.aai
  * ================================================================================
@@ -40,7 +40,7 @@ public class OxmSchemaProvider implements SchemaProvider {
         OxmEdgeRulesLoader.loadModels();
         OxmSchemaLoader.loadModels();
     }
-    
+
     @Override
     public String getLatestSchemaVersion() throws SchemaProviderException {
         return OxmSchemaLoader.getLatestVersion();
@@ -72,41 +72,41 @@ public class OxmSchemaProvider implements SchemaProvider {
         if (edgeRule == null) {
             return null;
         }
-        
+
         FromOxmEdgeSchema es = new FromOxmEdgeSchema();
         es.fromEdgeRule(edgeRule);
-        
+
         return es;
     }
 
     @Override
     public Set<EdgeSchema> getAdjacentEdgeSchema(String vertexType, String version) throws SchemaProviderException {
         RelationshipSchema relSchema = OxmEdgeRulesLoader.getSchemaForVersion(version);
-        Set<EdgeSchema> edges = new HashSet<EdgeSchema>();
+        Set<EdgeSchema> edges = new HashSet<>();
         List<EdgeRule> rules = relSchema.lookupAdjacentEdges(vertexType);
-        
+
         for (EdgeRule rule : rules) {
             FromOxmEdgeSchema es = new FromOxmEdgeSchema();
             es.fromEdgeRule(rule);
             edges.add(es);
         }
-        
+
         return edges;
     }
-    
+
     @Override
     public Set<EdgeSchema> getEdgeSchemaForSourceTarget(String sourceType, String targetType, String version) throws SchemaProviderException {
         RelationshipSchema relSchema = OxmEdgeRulesLoader.getSchemaForVersion(version);
-        Set<EdgeSchema> edges = new HashSet<EdgeSchema>();
+        Set<EdgeSchema> edges = new HashSet<>();
         Set<String> relTypes = relSchema.getValidRelationTypes(sourceType, targetType);
-        
+
         for (String type : relTypes) {
             EdgeSchema edgeSchema = getEdgeSchema(type, sourceType, targetType, version);
             if (edgeSchema != null) {
                 edges.add(edgeSchema);
             }
         }
-        
+
         return edges;
     }
 
diff --git a/aai-schema-ingest/src/test/java/org/onap/aai/nodes/NodeIngestorLocalTest.java b/aai-schema-ingest/src/test/java/org/onap/aai/nodes/NodeIngestorLocalTest.java
index dca21f2d..83d7dc44 100644
--- a/aai-schema-ingest/src/test/java/org/onap/aai/nodes/NodeIngestorLocalTest.java
+++ b/aai-schema-ingest/src/test/java/org/onap/aai/nodes/NodeIngestorLocalTest.java
@@ -1,4 +1,4 @@
-/**
+/*
  * ============LICENSE_START=======================================================
  * org.onap.aai
  * ================================================================================
@@ -20,18 +20,6 @@
 
 package org.onap.aai.nodes;
 
-import static org.hamcrest.CoreMatchers.is;
-import static org.junit.Assert.*;
-
-import java.io.*;
-import java.nio.file.Files;
-import java.nio.file.Paths;
-
-import javax.xml.bind.SchemaOutputResolver;
-import javax.xml.transform.*;
-import javax.xml.transform.dom.DOMSource;
-import javax.xml.transform.stream.StreamResult;
-
 import org.eclipse.persistence.dynamic.DynamicEntity;
 import org.eclipse.persistence.jaxb.dynamic.DynamicJAXBContext;
 import org.junit.Rule;
@@ -39,7 +27,6 @@ import org.junit.Test;
 import org.junit.rules.ExpectedException;
 import org.junit.runner.RunWith;
 import org.onap.aai.config.NodesConfiguration;
-import org.onap.aai.restclient.MockProvider;
 import org.onap.aai.setup.SchemaVersion;
 import org.onap.aai.testutils.TestUtilConfigTranslator;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -47,10 +34,29 @@ import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.test.annotation.DirtiesContext;
 import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.TestPropertySource;
-import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
 import org.springframework.test.context.junit4.SpringRunner;
 import org.w3c.dom.Document;
 
+import javax.xml.bind.SchemaOutputResolver;
+import javax.xml.transform.OutputKeys;
+import javax.xml.transform.Result;
+import javax.xml.transform.Transformer;
+import javax.xml.transform.TransformerException;
+import javax.xml.transform.TransformerFactory;
+import javax.xml.transform.dom.DOMSource;
+import javax.xml.transform.stream.StreamResult;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.OutputStreamWriter;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+
+import static java.nio.charset.StandardCharsets.UTF_8;
+import static org.hamcrest.CoreMatchers.is;
+import static org.junit.Assert.*;
+
 @RunWith(SpringRunner.class)
 @TestPropertySource(
         properties = {
@@ -69,7 +75,7 @@ public class NodeIngestorLocalTest {
     @Autowired
     NodeIngestor nodeIngestor;
 
-    public static void printDocument(Document doc, OutputStream out) throws IOException, TransformerException {
+    public static void printDocument(Document doc, OutputStream out) throws TransformerException {
         TransformerFactory tf = TransformerFactory.newInstance();
         Transformer transformer = tf.newTransformer();
         transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "no");
@@ -78,7 +84,7 @@ public class NodeIngestorLocalTest {
         transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
         transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4");
 
-        transformer.transform(new DOMSource(doc), new StreamResult(new OutputStreamWriter(out, "UTF-8")));
+        transformer.transform(new DOMSource(doc), new StreamResult(new OutputStreamWriter(out, UTF_8)));
     }
 
     @Test
@@ -89,12 +95,12 @@ public class NodeIngestorLocalTest {
         DynamicEntity foo10 = ctx10.newDynamicEntity("Foo");
 
         foo10.set("fooId", "bar");
-        assertTrue("bar".equals(foo10.get("fooId")));
+        assertEquals("bar", foo10.get("fooId"));
 
         // should work bc Bar is valid in test_business_v10 schema
         DynamicEntity bar10 = ctx10.newDynamicEntity("Bar");
         bar10.set("barId", "bar2");
-        assertTrue("bar2".equals(bar10.get("barId")));
+        assertEquals("bar2", bar10.get("barId"));
         XSDOutputResolver outputResolver10 = new XSDOutputResolver();
         ctx10.generateSchema(outputResolver10);
 
@@ -103,11 +109,11 @@ public class NodeIngestorLocalTest {
         // should work bc Foo.quantity is valid in test_network_v11 schema
         DynamicEntity foo11 = ctx11.newDynamicEntity("Foo");
         foo11.set("quantity", "12");
-        assertTrue("12".equals(foo11.get("quantity")));
+        assertEquals("12", foo11.get("quantity"));
 
         DynamicEntity quux11 = ctx11.newDynamicEntity("Quux");
         quux11.set("qManagerName", "some guy");
-        assertTrue("some guy".equals(quux11.get("qManagerName")));
+        assertEquals("some guy", quux11.get("qManagerName"));
         XSDOutputResolver outputResolver11 = new XSDOutputResolver();
         ctx11.generateSchema(outputResolver11);
 
@@ -126,19 +132,16 @@ public class NodeIngestorLocalTest {
     @Test
     public void testGetVersionFromClassName() {
         assertEquals(nodeIngestor.getVersionFromClassName("inventory.aai.onap.org.v13.Evc"), new SchemaVersion("v13"));
-
     }
 
     @Test
     public void testGetVersionFromClassNameNull() {
         assertEquals(nodeIngestor.getVersionFromClassName("blah"), new SchemaVersion("v15"));
-
     }
 
     @Test
     public void testGetObjectsInVersion() {
         assertEquals(nodeIngestor.getObjectsInVersion(new SchemaVersion("v13")).size(), 148);
-
     }
 
     @Test
@@ -155,7 +158,7 @@ public class NodeIngestorLocalTest {
         assertThat("OXM:\n" + expected, expected, is(content));
     }
 
-    private class XSDOutputResolver extends SchemaOutputResolver {
+    private static class XSDOutputResolver extends SchemaOutputResolver {
 
         @Override
         public Result createOutput(String namespaceUri, String suggestedFileName) throws IOException {
diff --git a/aai-schema-ingest/src/test/java/org/onap/aai/nodes/NodeIngestorTest.java b/aai-schema-ingest/src/test/java/org/onap/aai/nodes/NodeIngestorTest.java
index dc4e1e46..b70b1bfc 100644
--- a/aai-schema-ingest/src/test/java/org/onap/aai/nodes/NodeIngestorTest.java
+++ b/aai-schema-ingest/src/test/java/org/onap/aai/nodes/NodeIngestorTest.java
@@ -1,4 +1,4 @@
-/** 
+/*
  * ============LICENSE_START=======================================================
  * org.onap.aai
  * ================================================================================
@@ -20,18 +20,6 @@
 
 package org.onap.aai.nodes;
 
-import static org.hamcrest.CoreMatchers.is;
-import static org.junit.Assert.*;
-
-import java.io.*;
-import java.nio.file.Files;
-import java.nio.file.Paths;
-
-import javax.xml.bind.SchemaOutputResolver;
-import javax.xml.transform.*;
-import javax.xml.transform.dom.DOMSource;
-import javax.xml.transform.stream.StreamResult;
-
 import org.eclipse.persistence.dynamic.DynamicEntity;
 import org.eclipse.persistence.jaxb.dynamic.DynamicJAXBContext;
 import org.junit.Rule;
@@ -49,6 +37,26 @@ import org.springframework.test.context.TestPropertySource;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
 import org.w3c.dom.Document;
 
+import javax.xml.bind.SchemaOutputResolver;
+import javax.xml.transform.OutputKeys;
+import javax.xml.transform.Result;
+import javax.xml.transform.Transformer;
+import javax.xml.transform.TransformerException;
+import javax.xml.transform.TransformerFactory;
+import javax.xml.transform.dom.DOMSource;
+import javax.xml.transform.stream.StreamResult;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.OutputStreamWriter;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+
+import static java.nio.charset.StandardCharsets.UTF_8;
+import static org.hamcrest.CoreMatchers.is;
+import static org.junit.Assert.*;
+
 @RunWith(SpringJUnit4ClassRunner.class)
 @TestPropertySource(
         properties = {
@@ -76,12 +84,12 @@ public class NodeIngestorTest {
         DynamicEntity foo10 = ctx10.newDynamicEntity("Foo");
 
         foo10.set("fooId", "bar");
-        assertTrue("bar".equals(foo10.get("fooId")));
+        assertEquals("bar", foo10.get("fooId"));
 
         // should work bc Bar is valid in test_business_v10 schema
         DynamicEntity bar10 = ctx10.newDynamicEntity("Bar");
         bar10.set("barId", "bar2");
-        assertTrue("bar2".equals(bar10.get("barId")));
+        assertEquals("bar2", bar10.get("barId"));
         XSDOutputResolver outputResolver10 = new XSDOutputResolver();
         ctx10.generateSchema(outputResolver10);
 
@@ -90,11 +98,11 @@ public class NodeIngestorTest {
         // should work bc Foo.quantity is valid in test_network_v11 schema
         DynamicEntity foo11 = ctx11.newDynamicEntity("Foo");
         foo11.set("quantity", "12");
-        assertTrue("12".equals(foo11.get("quantity")));
+        assertEquals("12", foo11.get("quantity"));
 
         DynamicEntity quux11 = ctx11.newDynamicEntity("Quux");
         quux11.set("qManagerName", "some guy");
-        assertTrue("some guy".equals(quux11.get("qManagerName")));
+        assertEquals("some guy", quux11.get("qManagerName"));
         XSDOutputResolver outputResolver11 = new XSDOutputResolver();
         ctx11.generateSchema(outputResolver11);
 
@@ -154,24 +162,19 @@ public class NodeIngestorTest {
         transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
         transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4");
 
-        transformer.transform(new DOMSource(doc), new StreamResult(new OutputStreamWriter(out, "UTF-8")));
+        transformer.transform(new DOMSource(doc), new StreamResult(new OutputStreamWriter(out, UTF_8)));
     }
 
-    private class XSDOutputResolver extends SchemaOutputResolver {
+    private static class XSDOutputResolver extends SchemaOutputResolver {
 
         @Override
         public Result createOutput(String namespaceUri, String suggestedFileName) throws IOException {
-
-            // create new file
-            // create stream result
             File temp = File.createTempFile("schema", ".xsd");
             StreamResult result = new StreamResult(temp);
             System.out.println("Schema file: " + temp.getAbsolutePath());
 
-            // set system id
             result.setSystemId(temp.toURI().toURL().toString());
 
-            // return result
             return result;
         }
     }