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/HZTable.java b/src/main/java/net/onrc/onos/core/datastore/hazelcast/HZTable.java
index e609bce..c83e45d 100644
--- a/src/main/java/net/onrc/onos/core/datastore/hazelcast/HZTable.java
+++ b/src/main/java/net/onrc/onos/core/datastore/hazelcast/HZTable.java
@@ -7,14 +7,13 @@
 import java.util.Set;
 import java.util.concurrent.atomic.AtomicLong;
 
-import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
-
 import net.onrc.onos.core.datastore.IKVTable;
 import net.onrc.onos.core.datastore.IKVTableID;
 import net.onrc.onos.core.datastore.ObjectDoesntExistException;
 import net.onrc.onos.core.datastore.ObjectExistsException;
 import net.onrc.onos.core.datastore.WrongVersionException;
 
+import org.apache.commons.lang.ArrayUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -70,7 +69,7 @@
         }
 
         public VersionedValue(final byte[] value, final long version) {
-            this.value = value;
+            this.value = ArrayUtils.clone(value);
             this.version = version;
         }
 
@@ -83,7 +82,7 @@
         }
 
         public void setValue(final byte[] value) {
-            this.value = value;
+            this.value = ArrayUtils.clone(value);
         }
 
         public void setNextVersion() {
@@ -154,10 +153,8 @@
         byte[] value;
         long version;
 
-        @SuppressFBWarnings(value = "EI_EXPOSE_REP2",
-                            justification = "TODO: Store a copy of the object?")
         public Entry(final byte[] key, final byte[] value, final long version) {
-            this.key = key;
+            this.key = key.clone();
             this.setValue(value);
             this.setVersion(version);
         }
@@ -167,17 +164,13 @@
         }
 
         @Override
-        @SuppressFBWarnings(value = "EI_EXPOSE_REP",
-                            justification = "TODO: Return a copy of the object?")
         public byte[] getKey() {
-            return key;
+            return key.clone();
         }
 
         @Override
-        @SuppressFBWarnings(value = "EI_EXPOSE_REP",
-                            justification = "TODO: Return a copy of the object?")
         public byte[] getValue() {
-            return value;
+            return ArrayUtils.clone(value);
         }
 
         @Override
@@ -186,7 +179,7 @@
         }
 
         void setValue(final byte[] value) {
-            this.value = value;
+            this.value = ArrayUtils.clone(value);
         }
 
         void setVersion(final long version) {