BUG 2486 : Optimizations for a single node cluster deployment
[controller.git] / opendaylight / md-sal / sal-distributed-datastore / src / test / java / org / opendaylight / controller / cluster / datastore / ShardTest.java
index cd8a65844756b51820c5f6fb93dfe62a53071d31..2c526288b5ff9353145d4db6dd51d581783111d9 100644 (file)
@@ -1,5 +1,16 @@
 package org.opendaylight.controller.cluster.datastore;
 
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+import static org.mockito.Mockito.doAnswer;
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.inOrder;
+import static org.mockito.Mockito.mock;
+import static org.opendaylight.controller.cluster.datastore.messages.CreateTransaction.CURRENT_VERSION;
 import akka.actor.ActorRef;
 import akka.actor.PoisonPill;
 import akka.actor.Props;
@@ -16,8 +27,19 @@ import com.google.common.util.concurrent.Futures;
 import com.google.common.util.concurrent.ListenableFuture;
 import com.google.common.util.concurrent.MoreExecutors;
 import com.google.common.util.concurrent.Uninterruptibles;
+import java.io.IOException;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.concurrent.atomic.AtomicReference;
 import org.junit.After;
 import org.junit.Before;
+import org.junit.Ignore;
 import org.junit.Test;
 import org.mockito.InOrder;
 import org.mockito.invocation.InvocationOnMock;
@@ -54,6 +76,7 @@ import org.opendaylight.controller.cluster.raft.base.messages.CaptureSnapshot;
 import org.opendaylight.controller.cluster.raft.base.messages.ElectionTimeout;
 import org.opendaylight.controller.cluster.raft.client.messages.FindLeader;
 import org.opendaylight.controller.cluster.raft.client.messages.FindLeaderReply;
+import org.opendaylight.controller.cluster.raft.protobuff.client.messages.CompositeModificationByteStringPayload;
 import org.opendaylight.controller.cluster.raft.protobuff.client.messages.CompositeModificationPayload;
 import org.opendaylight.controller.cluster.raft.protobuff.client.messages.Payload;
 import org.opendaylight.controller.md.cluster.datastore.model.SchemaContextHelper;
@@ -80,29 +103,6 @@ import scala.concurrent.Await;
 import scala.concurrent.Future;
 import scala.concurrent.duration.FiniteDuration;
 
-import java.io.IOException;
-import java.util.Collections;
-import java.util.HashSet;
-import java.util.Map;
-import java.util.Set;
-import java.util.concurrent.CountDownLatch;
-import java.util.concurrent.ExecutionException;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.atomic.AtomicInteger;
-import java.util.concurrent.atomic.AtomicReference;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertTrue;
-import static org.junit.Assert.fail;
-import static org.mockito.Mockito.doAnswer;
-import static org.mockito.Mockito.doReturn;
-import static org.mockito.Mockito.inOrder;
-import static org.mockito.Mockito.mock;
-
-
 public class ShardTest extends AbstractActorTest {
 
     private static final SchemaContext SCHEMA_CONTEXT = TestModel.createTestContext();
@@ -307,6 +307,7 @@ public class ShardTest extends AbstractActorTest {
         }};
     }
 
+    @SuppressWarnings("serial")
     @Test
     public void testPeerAddressResolved() throws Exception {
         new ShardTestKit(getSystem()) {{
@@ -433,9 +434,9 @@ public class ShardTest extends AbstractActorTest {
                           ImmutableNodes.mapNodeBuilder(TestModel.OUTER_LIST_QNAME).build(),
                           SCHEMA_CONTEXT))));
 
-        int nListEntries = 11;
+        int nListEntries = 16;
         Set<Integer> listEntryKeys = new HashSet<>();
-        for(int i = 1; i <= nListEntries; i++) {
+        for(int i = 1; i <= nListEntries-5; i++) {
             listEntryKeys.add(Integer.valueOf(i));
             YangInstanceIdentifier path = YangInstanceIdentifier.builder(TestModel.OUTER_LIST_PATH)
                     .nodeWithKey(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, i).build();
@@ -446,6 +447,19 @@ public class ShardTest extends AbstractActorTest {
                     newPayload(mod)));
         }
 
+        // Add some of the new CompositeModificationByteStringPayload
+        for(int i = 11; i <= nListEntries; i++) {
+            listEntryKeys.add(Integer.valueOf(i));
+            YangInstanceIdentifier path = YangInstanceIdentifier.builder(TestModel.OUTER_LIST_PATH)
+                    .nodeWithKey(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, i).build();
+            Modification mod = new MergeModification(path,
+                    ImmutableNodes.mapEntry(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, i),
+                    SCHEMA_CONTEXT);
+            InMemoryJournal.addEntry(shardID.toString(), i, new ReplicatedLogImplEntry(i, 1,
+                    newByteStringPayload(mod)));
+        }
+
+
         InMemoryJournal.addEntry(shardID.toString(), nListEntries + 1,
                 new ApplyLogEntries(nListEntries));
 
@@ -508,7 +522,7 @@ public class ShardTest extends AbstractActorTest {
         shard.tell(PoisonPill.getInstance(), ActorRef.noSender());
     }
 
-    private CompositeModificationPayload newPayload(Modification... mods) {
+    private CompositeModificationPayload newPayload(final Modification... mods) {
         MutableCompositeModification compMod = new MutableCompositeModification();
         for(Modification mod: mods) {
             compMod.addModification(mod);
@@ -517,15 +531,25 @@ public class ShardTest extends AbstractActorTest {
         return new CompositeModificationPayload(compMod.toSerializable());
     }
 
-    private DOMStoreThreePhaseCommitCohort setupMockWriteTransaction(String cohortName,
-            InMemoryDOMDataStore dataStore, YangInstanceIdentifier path, NormalizedNode data,
-            MutableCompositeModification modification) {
+    private CompositeModificationByteStringPayload newByteStringPayload(final Modification... mods) {
+        MutableCompositeModification compMod = new MutableCompositeModification();
+        for(Modification mod: mods) {
+            compMod.addModification(mod);
+        }
+
+        return new CompositeModificationByteStringPayload(compMod.toSerializable());
+    }
+
+
+    private DOMStoreThreePhaseCommitCohort setupMockWriteTransaction(final String cohortName,
+            final InMemoryDOMDataStore dataStore, final YangInstanceIdentifier path, final NormalizedNode<?, ?> data,
+            final MutableCompositeModification modification) {
         return setupMockWriteTransaction(cohortName, dataStore, path, data, modification, null);
     }
 
-    private DOMStoreThreePhaseCommitCohort setupMockWriteTransaction(String cohortName,
-            InMemoryDOMDataStore dataStore, YangInstanceIdentifier path, NormalizedNode data,
-            MutableCompositeModification modification,
+    private DOMStoreThreePhaseCommitCohort setupMockWriteTransaction(final String cohortName,
+            final InMemoryDOMDataStore dataStore, final YangInstanceIdentifier path, final NormalizedNode<?, ?> data,
+            final MutableCompositeModification modification,
             final Function<DOMStoreThreePhaseCommitCohort,ListenableFuture<Void>> preCommit) {
 
         DOMStoreWriteTransaction tx = dataStore.newWriteOnlyTransaction();
@@ -535,14 +559,14 @@ public class ShardTest extends AbstractActorTest {
 
         doAnswer(new Answer<ListenableFuture<Boolean>>() {
             @Override
-            public ListenableFuture<Boolean> answer(InvocationOnMock invocation) {
+            public ListenableFuture<Boolean> answer(final InvocationOnMock invocation) {
                 return realCohort.canCommit();
             }
         }).when(cohort).canCommit();
 
         doAnswer(new Answer<ListenableFuture<Void>>() {
             @Override
-            public ListenableFuture<Void> answer(InvocationOnMock invocation) throws Throwable {
+            public ListenableFuture<Void> answer(final InvocationOnMock invocation) throws Throwable {
                 if(preCommit != null) {
                     return preCommit.apply(realCohort);
                 } else {
@@ -553,14 +577,14 @@ public class ShardTest extends AbstractActorTest {
 
         doAnswer(new Answer<ListenableFuture<Void>>() {
             @Override
-            public ListenableFuture<Void> answer(InvocationOnMock invocation) throws Throwable {
+            public ListenableFuture<Void> answer(final InvocationOnMock invocation) throws Throwable {
                 return realCohort.commit();
             }
         }).when(cohort).commit();
 
         doAnswer(new Answer<ListenableFuture<Void>>() {
             @Override
-            public ListenableFuture<Void> answer(InvocationOnMock invocation) throws Throwable {
+            public ListenableFuture<Void> answer(final InvocationOnMock invocation) throws Throwable {
                 return realCohort.abort();
             }
         }).when(cohort).abort();
@@ -611,7 +635,8 @@ public class ShardTest extends AbstractActorTest {
             // Simulate the ForwardedReadyTransaction message for the first Tx that would be sent
             // by the ShardTransaction.
 
-            shard.tell(new ForwardedReadyTransaction(transactionID1, cohort1, modification1, true), getRef());
+            shard.tell(new ForwardedReadyTransaction(transactionID1, CURRENT_VERSION,
+                    cohort1, modification1, true), getRef());
             ReadyTransactionReply readyReply = ReadyTransactionReply.fromSerializable(
                     expectMsgClass(duration, ReadyTransactionReply.SERIALIZABLE_CLASS));
             assertEquals("Cohort path", shard.path().toString(), readyReply.getCohortPath());
@@ -625,10 +650,12 @@ public class ShardTest extends AbstractActorTest {
 
             // Send the ForwardedReadyTransaction for the next 2 Tx's.
 
-            shard.tell(new ForwardedReadyTransaction(transactionID2, cohort2, modification2, true), getRef());
+            shard.tell(new ForwardedReadyTransaction(transactionID2, CURRENT_VERSION,
+                    cohort2, modification2, true), getRef());
             expectMsgClass(duration, ReadyTransactionReply.SERIALIZABLE_CLASS);
 
-            shard.tell(new ForwardedReadyTransaction(transactionID3, cohort3, modification3, true), getRef());
+            shard.tell(new ForwardedReadyTransaction(transactionID3, CURRENT_VERSION,
+                    cohort3, modification3, true), getRef());
             expectMsgClass(duration, ReadyTransactionReply.SERIALIZABLE_CLASS);
 
             // Send the CanCommitTransaction message for the next 2 Tx's. These should get queued and
@@ -654,12 +681,12 @@ public class ShardTest extends AbstractActorTest {
             class OnFutureComplete extends OnComplete<Object> {
                 private final Class<?> expRespType;
 
-                OnFutureComplete(Class<?> expRespType) {
+                OnFutureComplete(final Class<?> expRespType) {
                     this.expRespType = expRespType;
                 }
 
                 @Override
-                public void onComplete(Throwable error, Object resp) {
+                public void onComplete(final Throwable error, final Object resp) {
                     if(error != null) {
                         caughtEx.set(new AssertionError(getClass().getSimpleName() + " failure", error));
                     } else {
@@ -672,7 +699,7 @@ public class ShardTest extends AbstractActorTest {
                     }
                 }
 
-                void onSuccess(Object resp) throws Exception {
+                void onSuccess(final Object resp) throws Exception {
                 }
             }
 
@@ -682,7 +709,7 @@ public class ShardTest extends AbstractActorTest {
                 }
 
                 @Override
-                public void onComplete(Throwable error, Object resp) {
+                public void onComplete(final Throwable error, final Object resp) {
                     super.onComplete(error, resp);
                     commitLatch.countDown();
                 }
@@ -691,13 +718,13 @@ public class ShardTest extends AbstractActorTest {
             class OnCanCommitFutureComplete extends OnFutureComplete {
                 private final String transactionID;
 
-                OnCanCommitFutureComplete(String transactionID) {
+                OnCanCommitFutureComplete(final String transactionID) {
                     super(CanCommitTransactionReply.SERIALIZABLE_CLASS);
                     this.transactionID = transactionID;
                 }
 
                 @Override
-                void onSuccess(Object resp) throws Exception {
+                void onSuccess(final Object resp) throws Exception {
                     CanCommitTransactionReply canCommitReply =
                             CanCommitTransactionReply.fromSerializable(resp);
                     assertEquals("Can commit", true, canCommitReply.getCanCommit());
@@ -792,10 +819,12 @@ public class ShardTest extends AbstractActorTest {
             // Simulate the ForwardedReadyTransaction messages that would be sent
             // by the ShardTransaction.
 
-            shard.tell(new ForwardedReadyTransaction(transactionID1, cohort1, modification1, true), getRef());
+            shard.tell(new ForwardedReadyTransaction(transactionID1, CURRENT_VERSION,
+                    cohort1, modification1, true), getRef());
             expectMsgClass(duration, ReadyTransactionReply.SERIALIZABLE_CLASS);
 
-            shard.tell(new ForwardedReadyTransaction(transactionID2, cohort2, modification2, true), getRef());
+            shard.tell(new ForwardedReadyTransaction(transactionID2, CURRENT_VERSION,
+                    cohort2, modification2, true), getRef());
             expectMsgClass(duration, ReadyTransactionReply.SERIALIZABLE_CLASS);
 
             // Send the CanCommitTransaction message for the first Tx.
@@ -822,7 +851,7 @@ public class ShardTest extends AbstractActorTest {
             final CountDownLatch latch = new CountDownLatch(1);
             canCommitFuture.onComplete(new OnComplete<Object>() {
                 @Override
-                public void onComplete(Throwable t, Object resp) {
+                public void onComplete(final Throwable t, final Object resp) {
                     latch.countDown();
                 }
             }, getSystem().dispatcher());
@@ -859,7 +888,8 @@ public class ShardTest extends AbstractActorTest {
             // Simulate the ForwardedReadyTransaction messages that would be sent
             // by the ShardTransaction.
 
-            shard.tell(new ForwardedReadyTransaction(transactionID, cohort, modification, true), getRef());
+            shard.tell(new ForwardedReadyTransaction(transactionID, CURRENT_VERSION,
+                    cohort, modification, true), getRef());
             expectMsgClass(duration, ReadyTransactionReply.SERIALIZABLE_CLASS);
 
             // Send the CanCommitTransaction message.
@@ -902,7 +932,8 @@ public class ShardTest extends AbstractActorTest {
             // Simulate the ForwardedReadyTransaction messages that would be sent
             // by the ShardTransaction.
 
-            shard.tell(new ForwardedReadyTransaction(transactionID, cohort, modification, true), getRef());
+            shard.tell(new ForwardedReadyTransaction(transactionID, CURRENT_VERSION,
+                    cohort, modification, true), getRef());
             expectMsgClass(duration, ReadyTransactionReply.SERIALIZABLE_CLASS);
 
             // Send the CanCommitTransaction message.
@@ -915,6 +946,7 @@ public class ShardTest extends AbstractActorTest {
     }
 
     @Test
+    @Ignore("This test will work only if replication is turned on. Needs modification due to optimizations added to Shard/RaftActor.")
     public void testAbortBeforeFinishCommit() throws Throwable {
         new ShardTestKit(getSystem()) {{
             final TestActorRef<Shard> shard = TestActorRef.create(getSystem(),
@@ -940,7 +972,7 @@ public class ShardTest extends AbstractActorTest {
                             new AbortTransaction(transactionID).toSerializable(), timeout);
                     abortFuture.onComplete(new OnComplete<Object>() {
                         @Override
-                        public void onComplete(Throwable e, Object resp) {
+                        public void onComplete(final Throwable e, final Object resp) {
                             abortComplete.countDown();
                         }
                     }, getSystem().dispatcher());
@@ -954,7 +986,8 @@ public class ShardTest extends AbstractActorTest {
                     TestModel.TEST_PATH, ImmutableNodes.containerNode(TestModel.TEST_QNAME),
                     modification, preCommit);
 
-            shard.tell(new ForwardedReadyTransaction(transactionID, cohort, modification, true), getRef());
+            shard.tell(new ForwardedReadyTransaction(transactionID, CURRENT_VERSION,
+                    cohort, modification, true), getRef());
             expectMsgClass(duration, ReadyTransactionReply.SERIALIZABLE_CLASS);
 
             shard.tell(new CanCommitTransaction(transactionID).toSerializable(), getRef());
@@ -1018,10 +1051,12 @@ public class ShardTest extends AbstractActorTest {
 
             // Ready the Tx's
 
-            shard.tell(new ForwardedReadyTransaction(transactionID1, cohort1, modification1, true), getRef());
+            shard.tell(new ForwardedReadyTransaction(transactionID1, CURRENT_VERSION,
+                    cohort1, modification1, true), getRef());
             expectMsgClass(duration, ReadyTransactionReply.SERIALIZABLE_CLASS);
 
-            shard.tell(new ForwardedReadyTransaction(transactionID2, cohort2, modification2, true), getRef());
+            shard.tell(new ForwardedReadyTransaction(transactionID2, CURRENT_VERSION,
+                    cohort2, modification2, true), getRef());
             expectMsgClass(duration, ReadyTransactionReply.SERIALIZABLE_CLASS);
 
             // canCommit 1st Tx. We don't send the commit so it should timeout.
@@ -1080,13 +1115,16 @@ public class ShardTest extends AbstractActorTest {
 
             // Ready the Tx's
 
-            shard.tell(new ForwardedReadyTransaction(transactionID1, cohort1, modification1, true), getRef());
+            shard.tell(new ForwardedReadyTransaction(transactionID1, CURRENT_VERSION,
+                    cohort1, modification1, true), getRef());
             expectMsgClass(duration, ReadyTransactionReply.SERIALIZABLE_CLASS);
 
-            shard.tell(new ForwardedReadyTransaction(transactionID2, cohort2, modification2, true), getRef());
+            shard.tell(new ForwardedReadyTransaction(transactionID2, CURRENT_VERSION,
+                    cohort2, modification2, true), getRef());
             expectMsgClass(duration, ReadyTransactionReply.SERIALIZABLE_CLASS);
 
-            shard.tell(new ForwardedReadyTransaction(transactionID3, cohort3, modification3, true), getRef());
+            shard.tell(new ForwardedReadyTransaction(transactionID3, CURRENT_VERSION,
+                    cohort3, modification3, true), getRef());
             expectMsgClass(duration, ReadyTransactionReply.SERIALIZABLE_CLASS);
 
             // canCommit 1st Tx.
@@ -1149,10 +1187,12 @@ public class ShardTest extends AbstractActorTest {
             // Simulate the ForwardedReadyTransaction messages that would be sent
             // by the ShardTransaction.
 
-            shard.tell(new ForwardedReadyTransaction(transactionID1, cohort1, modification1, true), getRef());
+            shard.tell(new ForwardedReadyTransaction(transactionID1, CURRENT_VERSION,
+                    cohort1, modification1, true), getRef());
             expectMsgClass(duration, ReadyTransactionReply.SERIALIZABLE_CLASS);
 
-            shard.tell(new ForwardedReadyTransaction(transactionID2, cohort2, modification2, true), getRef());
+            shard.tell(new ForwardedReadyTransaction(transactionID2, CURRENT_VERSION,
+                    cohort2, modification2, true), getRef());
             expectMsgClass(duration, ReadyTransactionReply.SERIALIZABLE_CLASS);
 
             // Send the CanCommitTransaction message for the first Tx.
@@ -1179,7 +1219,7 @@ public class ShardTest extends AbstractActorTest {
             final CountDownLatch latch = new CountDownLatch(1);
             canCommitFuture.onComplete(new OnComplete<Object>() {
                 @Override
-                public void onComplete(Throwable t, Object resp) {
+                public void onComplete(final Throwable t, final Object resp) {
                     latch.countDown();
                 }
             }, getSystem().dispatcher());
@@ -1204,7 +1244,8 @@ public class ShardTest extends AbstractActorTest {
         testCreateSnapshot(false, "testCreateSnapshotWithNonPersistentData");
     }
 
-    public void testCreateSnapshot(boolean persistent, final String shardActorName) throws IOException, InterruptedException {
+    @SuppressWarnings("serial")
+    public void testCreateSnapshot(final boolean persistent, final String shardActorName) throws IOException, InterruptedException {
         final DatastoreContext dataStoreContext = DatastoreContext.newBuilder().
                 shardJournalRecoveryLogBatchSize(3).shardSnapshotBatchCount(5000).persistent(persistent).build();
 
@@ -1216,7 +1257,7 @@ public class ShardTest extends AbstractActorTest {
                     return new Shard(shardID, Collections.<ShardIdentifier,String>emptyMap(),
                             dataStoreContext, SCHEMA_CONTEXT) {
                         @Override
-                        protected void commitSnapshot(long sequenceNumber) {
+                        protected void commitSnapshot(final long sequenceNumber) {
                             super.commitSnapshot(sequenceNumber);
                             latch.get().countDown();
                         }
@@ -1248,8 +1289,7 @@ public class ShardTest extends AbstractActorTest {
      */
     @Test
     public void testInMemoryDataStoreRestore() throws ReadFailedException {
-        InMemoryDOMDataStore store = new InMemoryDOMDataStore("test", MoreExecutors.listeningDecorator(
-            MoreExecutors.sameThreadExecutor()), MoreExecutors.sameThreadExecutor());
+        InMemoryDOMDataStore store = new InMemoryDOMDataStore("test", MoreExecutors.sameThreadExecutor());
 
         store.onGlobalContextUpdated(SCHEMA_CONTEXT);
 
@@ -1259,7 +1299,7 @@ public class ShardTest extends AbstractActorTest {
         commitTransaction(putTransaction);
 
 
-        NormalizedNode expected = readStore(store);
+        NormalizedNode<?, ?> expected = readStore(store);
 
         DOMStoreWriteTransaction writeTransaction = store.newWriteOnlyTransaction();
 
@@ -1268,10 +1308,9 @@ public class ShardTest extends AbstractActorTest {
 
         commitTransaction(writeTransaction);
 
-        NormalizedNode actual = readStore(store);
+        NormalizedNode<?, ?> actual = readStore(store);
 
         assertEquals(expected, actual);
-
     }
 
     @Test
@@ -1309,7 +1348,7 @@ public class ShardTest extends AbstractActorTest {
     }
 
 
-    private NormalizedNode readStore(InMemoryDOMDataStore store) throws ReadFailedException {
+    private NormalizedNode<?, ?> readStore(final InMemoryDOMDataStore store) throws ReadFailedException {
         DOMStoreReadTransaction transaction = store.newReadOnlyTransaction();
         CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> read =
             transaction.read(YangInstanceIdentifier.builder().build());
@@ -1323,7 +1362,7 @@ public class ShardTest extends AbstractActorTest {
         return normalizedNode;
     }
 
-    private void commitTransaction(DOMStoreWriteTransaction transaction) {
+    private void commitTransaction(final DOMStoreWriteTransaction transaction) {
         DOMStoreThreePhaseCommitCohort commitCohort = transaction.ready();
         ListenableFuture<Void> future =
             commitCohort.preCommit();
@@ -1339,13 +1378,13 @@ public class ShardTest extends AbstractActorTest {
         return new AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>>() {
             @Override
             public void onDataChanged(
-                AsyncDataChangeEvent<YangInstanceIdentifier, NormalizedNode<?, ?>> change) {
+                final AsyncDataChangeEvent<YangInstanceIdentifier, NormalizedNode<?, ?>> change) {
 
             }
         };
     }
 
-    private NormalizedNode<?,?> readStore(TestActorRef<Shard> shard, YangInstanceIdentifier id)
+    static NormalizedNode<?,?> readStore(final TestActorRef<Shard> shard, final YangInstanceIdentifier id)
             throws ExecutionException, InterruptedException {
         DOMStoreReadTransaction transaction = shard.underlyingActor().getDataStore().newReadOnlyTransaction();
 
@@ -1360,7 +1399,7 @@ public class ShardTest extends AbstractActorTest {
         return node;
     }
 
-    private void writeToStore(TestActorRef<Shard> shard, YangInstanceIdentifier id, NormalizedNode<?,?> node)
+    private void writeToStore(final TestActorRef<Shard> shard, final YangInstanceIdentifier id, final NormalizedNode<?,?> node)
         throws ExecutionException, InterruptedException {
         DOMStoreWriteTransaction transaction = shard.underlyingActor().getDataStore().newWriteOnlyTransaction();
 
@@ -1371,10 +1410,11 @@ public class ShardTest extends AbstractActorTest {
         commitCohort.commit().get();
     }
 
+    @SuppressWarnings("serial")
     private static final class DelegatingShardCreator implements Creator<Shard> {
         private final Creator<Shard> delegate;
 
-        DelegatingShardCreator(Creator<Shard> delegate) {
+        DelegatingShardCreator(final Creator<Shard> delegate) {
             this.delegate = delegate;
         }