Fix minor checksyle issues in models

New checkstyle profile flagged some minor issues in policy models.

Issue-ID: POLICY-2165
Change-Id: I17ed070a3d55601ad31e48fdfd29fff01d29fa42
Signed-off-by: liamfallon <liam.fallon@est.tech>

3 files changed, 7 insertions, 4 deletions

diff --git a/models-interactions/model-impl/appc/src/main/java/org/onap/policy/appc/CommonHeader.java b/models-interactions/model-impl/appc/src/main/java/org/onap/policy/appc/CommonHeader.java
index 05507e60e..f0419efe9 100644
--- a/models-interactions/model-impl/appc/src/main/java/org/onap/policy/appc/CommonHeader.java
+++ b/models-interactions/model-impl/appc/src/main/java/org/onap/policy/appc/CommonHeader.java
@@ -29,6 +29,7 @@ import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Map;
 import java.util.UUID;
+
 import lombok.Getter;
 import lombok.Setter;
 
@@ -58,7 +59,9 @@ public class CommonHeader implements Serializable {
     @SerializedName("Flags")
     private Collection<Map<String, String>> flags = new ArrayList<>();
 
-    public CommonHeader() {}
+    public CommonHeader() {
+        // Default constructor
+    }
 
     /**
      * Construct an instance from an existing instance.
diff --git a/models-interactions/model-impl/appc/src/main/java/org/onap/policy/appc/util/Serialization.java b/models-interactions/model-impl/appc/src/main/java/org/onap/policy/appc/util/Serialization.java
index 735fb6234..30d4fcb0a 100644
--- a/models-interactions/model-impl/appc/src/main/java/org/onap/policy/appc/util/Serialization.java
+++ b/models-interactions/model-impl/appc/src/main/java/org/onap/policy/appc/util/Serialization.java
@@ -48,7 +48,9 @@ public final class Serialization {
             // .registerTypeAdapter(ResponseStatus1607.class, new gsonResponseStatus())
             .create();
 
-    private Serialization() {}
+    private Serialization() {
+        // Private constructor to prevent subclassing
+    }
 
     public static class GsonUtcAdapter implements JsonSerializer<ZonedDateTime>, JsonDeserializer<ZonedDateTime> {
         private static final Logger logger = LoggerFactory.getLogger(GsonUtcAdapter.class);
diff --git a/models-interactions/model-impl/appc/src/test/java/org/onap/policy/appc/RequestTest.java b/models-interactions/model-impl/appc/src/test/java/org/onap/policy/appc/RequestTest.java
index 00ac99de5..3e09bec0a 100644
--- a/models-interactions/model-impl/appc/src/test/java/org/onap/policy/appc/RequestTest.java
+++ b/models-interactions/model-impl/appc/src/test/java/org/onap/policy/appc/RequestTest.java
@@ -22,10 +22,8 @@
 package org.onap.policy.appc;
 
 import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertNotEquals;
 import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertTrue;
 
 import java.util.HashMap;
 import java.util.Map;