Fix EI_EXPOSE_REP family issue by copying.

Note: Variables which may be valid to be null uses ArrayUtils.clone()

Change-Id: I6a13dfd66753847de306d50bbdf32e724d896c56
diff --git a/src/main/java/net/onrc/onos/core/datastore/hazelcast/HZMultiEntryOperation.java b/src/main/java/net/onrc/onos/core/datastore/hazelcast/HZMultiEntryOperation.java
index d3df22c..99db3cc 100644
--- a/src/main/java/net/onrc/onos/core/datastore/hazelcast/HZMultiEntryOperation.java
+++ b/src/main/java/net/onrc/onos/core/datastore/hazelcast/HZMultiEntryOperation.java
@@ -4,8 +4,6 @@
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.Future;
 
-import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
-
 import net.onrc.onos.core.datastore.IKVTableID;
 import net.onrc.onos.core.datastore.IMultiEntryOperation;
 import net.onrc.onos.core.datastore.hazelcast.HZTable.VersionedValue;
@@ -35,11 +33,9 @@
      * @param key
      * @param operation
      */
-    @SuppressFBWarnings(value = "EI_EXPOSE_REP2",
-                        justification = "TODO: Store a copy of the object?")
     public HZMultiEntryOperation(final HZTable table, final byte[] key, final OPERATION operation) {
         this.table = table;
-        this.key = key;
+        this.key = key.clone();
         this.status = STATUS.NOT_EXECUTED;
         this.operation = operation;
 
@@ -56,11 +52,9 @@
      * @param version
      * @param operation
      */
-    @SuppressFBWarnings(value = "EI_EXPOSE_REP2",
-                        justification = "TODO: Store a copy of the object?")
     public HZMultiEntryOperation(final HZTable table, final byte[] key, final byte[] value, final long version, final OPERATION operation) {
         this.table = table;
-        this.key = key;
+        this.key = key.clone();
         this.status = STATUS.NOT_EXECUTED;
         this.operation = operation;
 
@@ -87,10 +81,8 @@
     }
 
     @Override
-    @SuppressFBWarnings(value = "EI_EXPOSE_REP",
-                        justification = "TODO: Return a copy of the object?")
     public byte[] getKey() {
-        return key;
+        return key.clone();
     }
 
     @Override