Various small fixes

Change-Id: I83802169d0d968f7b88d4be2cedba74b15fdd7da
diff --git a/core/store/primitives/src/test/java/org/onosproject/store/primitives/impl/MapValueTest.java b/core/store/primitives/src/test/java/org/onosproject/store/primitives/impl/MapValueTest.java
index 70c33e1..cfad4e4 100644
--- a/core/store/primitives/src/test/java/org/onosproject/store/primitives/impl/MapValueTest.java
+++ b/core/store/primitives/src/test/java/org/onosproject/store/primitives/impl/MapValueTest.java
@@ -48,6 +48,7 @@
         assertEquals(actual, expected);
     }
 
+    @SuppressWarnings("SelfComparison")
     @Test
     public void testComparison() {
         Timestamp ts1 = new LogicalTimestamp(9);