Reset snapshot progress after timeout has been hit
[controller.git] / opendaylight / md-sal / sal-akka-raft / src / test / java / org / opendaylight / controller / cluster / raft / RaftActorServerConfigurationSupportTest.java
index 9c7322d2166cc6d6f414adf14adb188a8b6a0da4..e17d9faae5d85ce9904d042c355208614a8cbb8f 100644 (file)
@@ -15,22 +15,28 @@ import static org.opendaylight.controller.cluster.raft.utils.MessageCollectorAct
 import static org.opendaylight.controller.cluster.raft.utils.MessageCollectorActor.expectFirstMatching;
 import static org.opendaylight.controller.cluster.raft.utils.MessageCollectorActor.expectMatching;
 
+import akka.actor.AbstractActor;
 import akka.actor.ActorRef;
 import akka.actor.Props;
-import akka.actor.UntypedActor;
 import akka.dispatch.Dispatchers;
-import akka.testkit.JavaTestKit;
 import akka.testkit.TestActorRef;
+import akka.testkit.javadsl.TestKit;
 import com.google.common.base.Optional;
 import com.google.common.base.Stopwatch;
 import com.google.common.collect.ImmutableMap;
 import com.google.common.collect.Maps;
 import com.google.common.collect.Sets;
+import com.google.common.io.ByteSource;
+import com.google.common.util.concurrent.MoreExecutors;
+import java.io.OutputStream;
+import java.time.Duration;
+import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
 import java.util.Map;
 import java.util.concurrent.TimeUnit;
+import org.apache.commons.lang3.SerializationUtils;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
@@ -38,7 +44,6 @@ import org.opendaylight.controller.cluster.NonPersistentDataProvider;
 import org.opendaylight.controller.cluster.raft.base.messages.ApplySnapshot;
 import org.opendaylight.controller.cluster.raft.base.messages.ApplyState;
 import org.opendaylight.controller.cluster.raft.base.messages.CaptureSnapshotReply;
-import org.opendaylight.controller.cluster.raft.base.messages.ElectionTimeout;
 import org.opendaylight.controller.cluster.raft.base.messages.InitiateCaptureSnapshot;
 import org.opendaylight.controller.cluster.raft.base.messages.TimeoutNow;
 import org.opendaylight.controller.cluster.raft.behaviors.AbstractLeader;
@@ -58,8 +63,10 @@ import org.opendaylight.controller.cluster.raft.messages.ServerChangeStatus;
 import org.opendaylight.controller.cluster.raft.messages.ServerRemoved;
 import org.opendaylight.controller.cluster.raft.messages.UnInitializedFollowerSnapshotReply;
 import org.opendaylight.controller.cluster.raft.persisted.ApplyJournalEntries;
+import org.opendaylight.controller.cluster.raft.persisted.ByteState;
 import org.opendaylight.controller.cluster.raft.persisted.ServerConfigurationPayload;
 import org.opendaylight.controller.cluster.raft.persisted.ServerInfo;
+import org.opendaylight.controller.cluster.raft.persisted.SimpleReplicatedLogEntry;
 import org.opendaylight.controller.cluster.raft.persisted.UpdateElectionTerm;
 import org.opendaylight.controller.cluster.raft.policy.DisableElectionsRaftPolicy;
 import org.opendaylight.controller.cluster.raft.utils.ForwardMessageToBehaviorActor;
@@ -93,10 +100,10 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
             actorFactory.generateActorId(FOLLOWER_ID));
 
     private TestActorRef<MockNewFollowerRaftActor> newFollowerRaftActor;
-    private TestActorRef<MessageCollectorActor> newFollowerCollectorActor;
+    private ActorRef newFollowerCollectorActor;
     private RaftActorContext newFollowerActorContext;
 
-    private final JavaTestKit testKit = new JavaTestKit(getSystem());
+    private final TestKit testKit = new TestKit(getSystem());
 
     @Before
     public void setup() {
@@ -108,8 +115,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
     private void setupNewFollower() {
         DefaultConfigParamsImpl configParams = newFollowerConfigParams();
 
-        newFollowerCollectorActor = actorFactory.createTestActor(
-                MessageCollectorActor.props().withDispatcher(Dispatchers.DefaultDispatcherId()),
+        newFollowerCollectorActor = actorFactory.createActor(MessageCollectorActor.props(),
                 actorFactory.generateActorId(NEW_SERVER_ID + "Collector"));
         newFollowerRaftActor = actorFactory.createTestActor(MockNewFollowerRaftActor.props(
                 configParams, newFollowerCollectorActor).withDispatcher(Dispatchers.DefaultDispatcherId()),
@@ -131,12 +137,12 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
     }
 
     @After
-    public void tearDown() throws Exception {
+    public void tearDown() {
         actorFactory.close();
     }
 
     @Test
-    public void testAddServerWithExistingFollower() throws Exception {
+    public void testAddServerWithExistingFollower() {
         LOG.info("testAddServerWithExistingFollower starting");
         setupNewFollower();
         RaftActorContextImpl followerActorContext = newFollowerContext(FOLLOWER_ID, followerActor);
@@ -159,18 +165,17 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
         clearMessages(followerActor);
 
         MockLeaderRaftActor leaderRaftActor = leaderActor.underlyingActor();
-        final TestActorRef<MessageCollectorActor> leaderCollectorActor = newLeaderCollectorActor(leaderRaftActor);
+        final ActorRef leaderCollectorActor = newLeaderCollectorActor(leaderRaftActor);
 
         leaderActor.tell(new AddServer(NEW_SERVER_ID, newFollowerRaftActor.path().toString(), true), testKit.getRef());
 
         // Leader should install snapshot - capture and verify ApplySnapshot contents
 
         ApplySnapshot applySnapshot = expectFirstMatching(newFollowerCollectorActor, ApplySnapshot.class);
-        @SuppressWarnings("unchecked")
-        List<Object> snapshotState = (List<Object>) MockRaftActor.toObject(applySnapshot.getSnapshot().getState());
+        List<Object> snapshotState = MockRaftActor.fromState(applySnapshot.getSnapshot().getState());
         assertEquals("Snapshot state", snapshotState, leaderRaftActor.getState());
 
-        AddServerReply addServerReply = testKit.expectMsgClass(JavaTestKit.duration("5 seconds"), AddServerReply.class);
+        AddServerReply addServerReply = testKit.expectMsgClass(Duration.ofSeconds(5), AddServerReply.class);
         assertEquals("getStatus", ServerChangeStatus.OK, addServerReply.getStatus());
         assertEquals("getLeaderHint", LEADER_ID, addServerReply.getLeaderHint().get());
 
@@ -203,21 +208,18 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
         assertEquals("New follower peers", Sets.newHashSet(LEADER_ID, FOLLOWER_ID),
                 newFollowerActorContext.getPeerIds());
 
-        expectFirstMatching(newFollowerCollectorActor, ApplyState.class);
-        expectFirstMatching(followerActor, ApplyState.class);
-
         assertEquals("Follower commit index", 3, followerActorContext.getCommitIndex());
         assertEquals("Follower last applied index", 3, followerActorContext.getLastApplied());
         assertEquals("New follower commit index", 3, newFollowerActorContext.getCommitIndex());
         assertEquals("New follower last applied index", 3, newFollowerActorContext.getLastApplied());
 
         assertEquals("Leader persisted ReplicatedLogImplEntry entries", 0,
-                InMemoryJournal.get(LEADER_ID, ReplicatedLogImplEntry.class).size());
+                InMemoryJournal.get(LEADER_ID, SimpleReplicatedLogEntry.class).size());
         assertEquals("Leader persisted ServerConfigurationPayload entries", 1,
                 InMemoryJournal.get(LEADER_ID, ServerConfigurationPayload.class).size());
 
         assertEquals("New follower persisted ReplicatedLogImplEntry entries", 0,
-                InMemoryJournal.get(NEW_SERVER_ID, ReplicatedLogImplEntry.class).size());
+                InMemoryJournal.get(NEW_SERVER_ID, SimpleReplicatedLogEntry.class).size());
         assertEquals("New follower persisted ServerConfigurationPayload entries", 1,
                 InMemoryJournal.get(NEW_SERVER_ID, ServerConfigurationPayload.class).size());
 
@@ -225,7 +227,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
     }
 
     @Test
-    public void testAddServerWithNoExistingFollower() throws Exception {
+    public void testAddServerWithNoExistingFollower() {
         LOG.info("testAddServerWithNoExistingFollower starting");
 
         setupNewFollower();
@@ -243,18 +245,17 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
         MockLeaderRaftActor leaderRaftActor = leaderActor.underlyingActor();
         final RaftActorContext leaderActorContext = leaderRaftActor.getRaftActorContext();
 
-        final TestActorRef<MessageCollectorActor> leaderCollectorActor = newLeaderCollectorActor(leaderRaftActor);
+        final ActorRef leaderCollectorActor = newLeaderCollectorActor(leaderRaftActor);
 
         leaderActor.tell(new AddServer(NEW_SERVER_ID, newFollowerRaftActor.path().toString(), true), testKit.getRef());
 
         // Leader should install snapshot - capture and verify ApplySnapshot contents
 
         ApplySnapshot applySnapshot = expectFirstMatching(newFollowerCollectorActor, ApplySnapshot.class);
-        @SuppressWarnings("unchecked")
-        List<Object> snapshotState = (List<Object>) MockRaftActor.toObject(applySnapshot.getSnapshot().getState());
+        List<Object> snapshotState = MockRaftActor.fromState(applySnapshot.getSnapshot().getState());
         assertEquals("Snapshot state", snapshotState, leaderRaftActor.getState());
 
-        AddServerReply addServerReply = testKit.expectMsgClass(JavaTestKit.duration("5 seconds"), AddServerReply.class);
+        AddServerReply addServerReply = testKit.expectMsgClass(Duration.ofSeconds(5), AddServerReply.class);
         assertEquals("getStatus", ServerChangeStatus.OK, addServerReply.getStatus());
         assertEquals("getLeaderHint", LEADER_ID, addServerReply.getLeaderHint().get());
 
@@ -282,7 +283,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
     }
 
     @Test
-    public void testAddServersAsNonVoting() throws Exception {
+    public void testAddServersAsNonVoting() {
         LOG.info("testAddServersAsNonVoting starting");
 
         setupNewFollower();
@@ -296,11 +297,11 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
         MockLeaderRaftActor leaderRaftActor = leaderActor.underlyingActor();
         final RaftActorContext leaderActorContext = leaderRaftActor.getRaftActorContext();
 
-        final TestActorRef<MessageCollectorActor> leaderCollectorActor = newLeaderCollectorActor(leaderRaftActor);
+        final ActorRef leaderCollectorActor = newLeaderCollectorActor(leaderRaftActor);
 
         leaderActor.tell(new AddServer(NEW_SERVER_ID, newFollowerRaftActor.path().toString(), false), testKit.getRef());
 
-        AddServerReply addServerReply = testKit.expectMsgClass(JavaTestKit.duration("5 seconds"), AddServerReply.class);
+        AddServerReply addServerReply = testKit.expectMsgClass(Duration.ofSeconds(5), AddServerReply.class);
         assertEquals("getStatus", ServerChangeStatus.OK, addServerReply.getStatus());
         assertEquals("getLeaderHint", LEADER_ID, addServerReply.getLeaderHint().get());
 
@@ -337,7 +338,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
 
         leaderActor.tell(new AddServer(NEW_SERVER_ID2, followerActor.path().toString(), false), testKit.getRef());
 
-        addServerReply = testKit.expectMsgClass(JavaTestKit.duration("5 seconds"), AddServerReply.class);
+        addServerReply = testKit.expectMsgClass(Duration.ofSeconds(5), AddServerReply.class);
         assertEquals("getStatus", ServerChangeStatus.OK, addServerReply.getStatus());
         assertEquals("getLeaderHint", java.util.Optional.of(LEADER_ID), addServerReply.getLeaderHint());
 
@@ -352,7 +353,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
     }
 
     @Test
-    public void testAddServerWithOperationInProgress() throws Exception {
+    public void testAddServerWithOperationInProgress() {
         LOG.info("testAddServerWithOperationInProgress starting");
 
         setupNewFollower();
@@ -366,7 +367,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
         MockLeaderRaftActor leaderRaftActor = leaderActor.underlyingActor();
         final RaftActorContext leaderActorContext = leaderRaftActor.getRaftActorContext();
 
-        final TestActorRef<MessageCollectorActor> leaderCollectorActor = newLeaderCollectorActor(leaderRaftActor);
+        final ActorRef leaderCollectorActor = newLeaderCollectorActor(leaderRaftActor);
 
         RaftActorContext follower2ActorContext = newFollowerContext(NEW_SERVER_ID2, followerActor);
         Follower newFollower2 = new Follower(follower2ActorContext);
@@ -382,7 +383,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
         InstallSnapshot installSnapshot = expectFirstMatching(newFollowerCollectorActor, InstallSnapshot.class);
 
         // Send a second AddServer - should get queued
-        JavaTestKit testKit2 = new JavaTestKit(getSystem());
+        TestKit testKit2 = new TestKit(getSystem());
         leaderActor.tell(new AddServer(NEW_SERVER_ID2, followerActor.path().toString(), false), testKit2.getRef());
 
         // Continue the first AddServer
@@ -390,10 +391,10 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
         newFollowerRaftActor.tell(installSnapshot, leaderActor);
 
         // Verify both complete successfully
-        AddServerReply addServerReply = testKit.expectMsgClass(JavaTestKit.duration("5 seconds"), AddServerReply.class);
+        AddServerReply addServerReply = testKit.expectMsgClass(Duration.ofSeconds(5), AddServerReply.class);
         assertEquals("getStatus", ServerChangeStatus.OK, addServerReply.getStatus());
 
-        addServerReply = testKit2.expectMsgClass(JavaTestKit.duration("5 seconds"), AddServerReply.class);
+        addServerReply = testKit2.expectMsgClass(Duration.ofSeconds(5), AddServerReply.class);
         assertEquals("getStatus", ServerChangeStatus.OK, addServerReply.getStatus());
 
         // Verify ServerConfigurationPayload entries in leader's log
@@ -415,7 +416,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
     }
 
     @Test
-    public void testAddServerWithPriorSnapshotInProgress() throws Exception {
+    public void testAddServerWithPriorSnapshotInProgress() {
         LOG.info("testAddServerWithPriorSnapshotInProgress starting");
 
         setupNewFollower();
@@ -429,7 +430,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
         MockLeaderRaftActor leaderRaftActor = leaderActor.underlyingActor();
         final RaftActorContext leaderActorContext = leaderRaftActor.getRaftActorContext();
 
-        TestActorRef<MessageCollectorActor> leaderCollectorActor = newLeaderCollectorActor(leaderRaftActor);
+        ActorRef leaderCollectorActor = newLeaderCollectorActor(leaderRaftActor);
 
         // Drop commit message for now to delay snapshot completion
         leaderRaftActor.setDropMessageOfType(String.class);
@@ -443,7 +444,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
         leaderRaftActor.setDropMessageOfType(null);
         leaderActor.tell(commitMsg, leaderActor);
 
-        AddServerReply addServerReply = testKit.expectMsgClass(JavaTestKit.duration("5 seconds"), AddServerReply.class);
+        AddServerReply addServerReply = testKit.expectMsgClass(Duration.ofSeconds(5), AddServerReply.class);
         assertEquals("getStatus", ServerChangeStatus.OK, addServerReply.getStatus());
         assertEquals("getLeaderHint", LEADER_ID, addServerReply.getLeaderHint().get());
 
@@ -462,7 +463,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
     }
 
     @Test
-    public void testAddServerWithPriorSnapshotCompleteTimeout() throws Exception {
+    public void testAddServerWithPriorSnapshotCompleteTimeout() {
         LOG.info("testAddServerWithPriorSnapshotCompleteTimeout starting");
 
         setupNewFollower();
@@ -485,7 +486,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
 
         leaderActor.tell(new AddServer(NEW_SERVER_ID, newFollowerRaftActor.path().toString(), true), testKit.getRef());
 
-        AddServerReply addServerReply = testKit.expectMsgClass(JavaTestKit.duration("5 seconds"), AddServerReply.class);
+        AddServerReply addServerReply = testKit.expectMsgClass(Duration.ofSeconds(5), AddServerReply.class);
         assertEquals("getStatus", ServerChangeStatus.TIMEOUT, addServerReply.getStatus());
 
         assertEquals("Leader peers size", 0, leaderActorContext.getPeerIds().size());
@@ -494,7 +495,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
     }
 
     @Test
-    public void testAddServerWithLeaderChangeBeforePriorSnapshotComplete() throws Exception {
+    public void testAddServerWithLeaderChangeBeforePriorSnapshotComplete() {
         LOG.info("testAddServerWithLeaderChangeBeforePriorSnapshotComplete starting");
 
         setupNewFollower();
@@ -509,7 +510,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
         RaftActorContext leaderActorContext = leaderRaftActor.getRaftActorContext();
         ((DefaultConfigParamsImpl)leaderActorContext.getConfigParams()).setElectionTimeoutFactor(100);
 
-        final TestActorRef<MessageCollectorActor> leaderCollectorActor = newLeaderCollectorActor(leaderRaftActor);
+        final ActorRef leaderCollectorActor = newLeaderCollectorActor(leaderRaftActor);
 
         // Drop the commit message so the snapshot doesn't complete yet.
         leaderRaftActor.setDropMessageOfType(COMMIT_MESSAGE_CLASS);
@@ -533,7 +534,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
 
         leaderActor.tell(new RaftActorServerConfigurationSupport.ServerOperationTimeout(NEW_SERVER_ID), leaderActor);
 
-        AddServerReply addServerReply = testKit.expectMsgClass(JavaTestKit.duration("5 seconds"), AddServerReply.class);
+        AddServerReply addServerReply = testKit.expectMsgClass(Duration.ofSeconds(5), AddServerReply.class);
         assertEquals("getStatus", ServerChangeStatus.NO_LEADER, addServerReply.getStatus());
 
         assertEquals("Leader peers size", 0, leaderActorContext.getPeerIds().size());
@@ -543,7 +544,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
     }
 
     @Test
-    public void testAddServerWithLeaderChangeDuringInstallSnapshot() throws Exception {
+    public void testAddServerWithLeaderChangeDuringInstallSnapshot() {
         LOG.info("testAddServerWithLeaderChangeDuringInstallSnapshot starting");
 
         setupNewFollower();
@@ -559,7 +560,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
 
         ((DefaultConfigParamsImpl)leaderActorContext.getConfigParams()).setElectionTimeoutFactor(8);
 
-        TestActorRef<MessageCollectorActor> leaderCollectorActor = newLeaderCollectorActor(leaderRaftActor);
+        ActorRef leaderCollectorActor = newLeaderCollectorActor(leaderRaftActor);
 
         // Drop the UnInitializedFollowerSnapshotReply to delay it.
         leaderRaftActor.setDropMessageOfType(UnInitializedFollowerSnapshotReply.class);
@@ -579,7 +580,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
         leaderRaftActor.setDropMessageOfType(null);
         leaderActor.tell(snapshotReply, leaderActor);
 
-        AddServerReply addServerReply = testKit.expectMsgClass(JavaTestKit.duration("5 seconds"), AddServerReply.class);
+        AddServerReply addServerReply = testKit.expectMsgClass(Duration.ofSeconds(5), AddServerReply.class);
         assertEquals("getStatus", ServerChangeStatus.NO_LEADER, addServerReply.getStatus());
 
         assertEquals("Leader peers size", 0, leaderActorContext.getPeerIds().size());
@@ -588,7 +589,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
     }
 
     @Test
-    public void testAddServerWithInstallSnapshotTimeout() throws Exception {
+    public void testAddServerWithInstallSnapshotTimeout() {
         LOG.info("testAddServerWithInstallSnapshotTimeout starting");
 
         setupNewFollower();
@@ -610,7 +611,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
 
         leaderActor.tell(new UnInitializedFollowerSnapshotReply("bogus"), leaderActor);
 
-        AddServerReply addServerReply = testKit.expectMsgClass(JavaTestKit.duration("5 seconds"), AddServerReply.class);
+        AddServerReply addServerReply = testKit.expectMsgClass(Duration.ofSeconds(5), AddServerReply.class);
         assertEquals("getStatus", ServerChangeStatus.TIMEOUT, addServerReply.getStatus());
 
         assertEquals("Leader peers size", 0, leaderActorContext.getPeerIds().size());
@@ -637,7 +638,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
 
         noLeaderActor.tell(new AddServer(NEW_SERVER_ID, newFollowerRaftActor.path().toString(), true),
                 testKit.getRef());
-        AddServerReply addServerReply = testKit.expectMsgClass(JavaTestKit.duration("5 seconds"), AddServerReply.class);
+        AddServerReply addServerReply = testKit.expectMsgClass(Duration.ofSeconds(5), AddServerReply.class);
         assertEquals("getStatus", ServerChangeStatus.NO_LEADER, addServerReply.getStatus());
 
         LOG.info("testAddServerWithNoLeader ending");
@@ -658,7 +659,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
         MockLeaderRaftActor leaderRaftActor = leaderActor.underlyingActor();
         final RaftActorContext leaderActorContext = leaderRaftActor.getRaftActorContext();
 
-        final TestActorRef<MessageCollectorActor> leaderCollectorActor = newLeaderCollectorActor(leaderRaftActor);
+        final ActorRef leaderCollectorActor = newLeaderCollectorActor(leaderRaftActor);
 
         // Drop UnInitializedFollowerSnapshotReply initially
         leaderRaftActor.setDropMessageOfType(UnInitializedFollowerSnapshotReply.class);
@@ -684,7 +685,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
         leaderActor.tell(new AddServer(NEW_SERVER_ID2, "", false), testKit.getRef());
 
         // The first AddServer should succeed with OK even though consensus wasn't reached
-        AddServerReply addServerReply = testKit.expectMsgClass(JavaTestKit.duration("5 seconds"), AddServerReply.class);
+        AddServerReply addServerReply = testKit.expectMsgClass(Duration.ofSeconds(5), AddServerReply.class);
         assertEquals("getStatus", ServerChangeStatus.OK, addServerReply.getStatus());
         assertEquals("getLeaderHint", LEADER_ID, addServerReply.getLeaderHint().get());
 
@@ -693,12 +694,12 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
                 votingServer(NEW_SERVER_ID));
 
         // The second AddServer should fail since consensus wasn't reached for the first
-        addServerReply = testKit.expectMsgClass(JavaTestKit.duration("5 seconds"), AddServerReply.class);
+        addServerReply = testKit.expectMsgClass(Duration.ofSeconds(5), AddServerReply.class);
         assertEquals("getStatus", ServerChangeStatus.PRIOR_REQUEST_CONSENSUS_TIMEOUT, addServerReply.getStatus());
 
         // Re-send the second AddServer - should also fail
         leaderActor.tell(new AddServer(NEW_SERVER_ID2, "", false), testKit.getRef());
-        addServerReply = testKit.expectMsgClass(JavaTestKit.duration("5 seconds"), AddServerReply.class);
+        addServerReply = testKit.expectMsgClass(Duration.ofSeconds(5), AddServerReply.class);
         assertEquals("getStatus", ServerChangeStatus.PRIOR_REQUEST_CONSENSUS_TIMEOUT, addServerReply.getStatus());
 
         LOG.info("testAddServerWithNoConsensusReached ending");
@@ -717,7 +718,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
 
         leaderActor.tell(new AddServer(FOLLOWER_ID, followerActor.path().toString(), true), testKit.getRef());
 
-        AddServerReply addServerReply = testKit.expectMsgClass(JavaTestKit.duration("5 seconds"), AddServerReply.class);
+        AddServerReply addServerReply = testKit.expectMsgClass(Duration.ofSeconds(5), AddServerReply.class);
         assertEquals("getStatus", ServerChangeStatus.ALREADY_EXISTS, addServerReply.getStatus());
 
         LOG.info("testAddServerWithExistingServer ending");
@@ -731,9 +732,8 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
         DefaultConfigParamsImpl configParams = new DefaultConfigParamsImpl();
         configParams.setHeartBeatInterval(new FiniteDuration(1, TimeUnit.DAYS));
 
-        TestActorRef<MessageCollectorActor> leaderActor = actorFactory.createTestActor(
-                MessageCollectorActor.props().withDispatcher(Dispatchers.DefaultDispatcherId()),
-                actorFactory.generateActorId(LEADER_ID));
+        ActorRef leaderActor = actorFactory.createActor(
+                MessageCollectorActor.props(), actorFactory.generateActorId(LEADER_ID));
 
         TestActorRef<MockRaftActor> followerRaftActor = actorFactory.createTestActor(
                 MockRaftActor.builder().id(FOLLOWER_ID).peerAddresses(ImmutableMap.of(LEADER_ID,
@@ -767,12 +767,12 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
         RaftActorServerConfigurationSupport support = new RaftActorServerConfigurationSupport(
                 noLeaderActor.underlyingActor());
 
-        ReplicatedLogEntry serverConfigEntry = new MockRaftActorContext.MockReplicatedLogEntry(1, 1,
+        ReplicatedLogEntry serverConfigEntry = new SimpleReplicatedLogEntry(1, 1,
                 new ServerConfigurationPayload(Collections.<ServerInfo>emptyList()));
         boolean handled = support.handleMessage(new ApplyState(null, null, serverConfigEntry), ActorRef.noSender());
         assertEquals("Message handled", true, handled);
 
-        ReplicatedLogEntry nonServerConfigEntry = new MockRaftActorContext.MockReplicatedLogEntry(1, 1,
+        ReplicatedLogEntry nonServerConfigEntry = new SimpleReplicatedLogEntry(1, 1,
                 new MockRaftActorContext.MockPayload("1"));
         handled = support.handleMessage(new ApplyState(null, null, nonServerConfigEntry), ActorRef.noSender());
         assertEquals("Message handled", false, handled);
@@ -795,8 +795,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
         leaderActor.underlyingActor().waitForInitializeBehaviorComplete();
 
         leaderActor.tell(new RemoveServer(FOLLOWER_ID), testKit.getRef());
-        RemoveServerReply removeServerReply = testKit.expectMsgClass(JavaTestKit.duration("5 seconds"),
-                RemoveServerReply.class);
+        RemoveServerReply removeServerReply = testKit.expectMsgClass(Duration.ofSeconds(5), RemoveServerReply.class);
         assertEquals("getStatus", ServerChangeStatus.NO_LEADER, removeServerReply.getStatus());
 
         LOG.info("testRemoveServerWithNoLeader ending");
@@ -814,8 +813,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
                 actorFactory.generateActorId(LEADER_ID));
 
         leaderActor.tell(new RemoveServer(NEW_SERVER_ID), testKit.getRef());
-        RemoveServerReply removeServerReply = testKit.expectMsgClass(JavaTestKit.duration("5 seconds"),
-                RemoveServerReply.class);
+        RemoveServerReply removeServerReply = testKit.expectMsgClass(Duration.ofSeconds(5), RemoveServerReply.class);
         assertEquals("getStatus", ServerChangeStatus.DOES_NOT_EXIST, removeServerReply.getStatus());
 
         LOG.info("testRemoveServerNonExistentServer ending");
@@ -828,9 +826,8 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
         DefaultConfigParamsImpl configParams = new DefaultConfigParamsImpl();
         configParams.setHeartBeatInterval(new FiniteDuration(1, TimeUnit.DAYS));
 
-        TestActorRef<MessageCollectorActor> leaderActor = actorFactory.createTestActor(
-                MessageCollectorActor.props().withDispatcher(Dispatchers.DefaultDispatcherId()),
-                actorFactory.generateActorId(LEADER_ID));
+        ActorRef leaderActor = actorFactory.createTestActor(
+                MessageCollectorActor.props(), actorFactory.generateActorId(LEADER_ID));
 
         TestActorRef<MockRaftActor> followerRaftActor = actorFactory.createTestActor(
                 MockRaftActor.builder().id(FOLLOWER_ID).peerAddresses(ImmutableMap.of(LEADER_ID,
@@ -856,41 +853,57 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
         configParams.setHeartBeatInterval(new FiniteDuration(1, TimeUnit.DAYS));
         configParams.setCustomRaftPolicyImplementationClass(DisableElectionsRaftPolicy.class.getName());
 
-        final String followerActorId = actorFactory.generateActorId(FOLLOWER_ID);
-        final String followerActorPath = actorFactory.createTestActorPath(followerActorId);
+        final String follower1ActorId = actorFactory.generateActorId(FOLLOWER_ID);
+        final String follower1ActorPath = actorFactory.createTestActorPath(follower1ActorId);
+        final String follower2ActorId = actorFactory.generateActorId(FOLLOWER_ID2);
+        final String follower2ActorPath = actorFactory.createTestActorPath(follower2ActorId);
         RaftActorContext initialActorContext = new MockRaftActorContext();
 
-        TestActorRef<MockLeaderRaftActor> leaderActor = actorFactory.createTestActor(
-                MockLeaderRaftActor.props(ImmutableMap.of(FOLLOWER_ID, followerActorPath),
+        final String downNodeId = "downNode";
+        TestActorRef<MockLeaderRaftActor> leaderActor = actorFactory.createTestActor(MockLeaderRaftActor.props(
+                ImmutableMap.of(FOLLOWER_ID, follower1ActorPath, FOLLOWER_ID2, follower2ActorPath, downNodeId, ""),
                         initialActorContext).withDispatcher(Dispatchers.DefaultDispatcherId()),
                 actorFactory.generateActorId(LEADER_ID));
 
-        final TestActorRef<MessageCollectorActor> leaderCollector =
-                newLeaderCollectorActor(leaderActor.underlyingActor());
+        final ActorRef leaderCollector = newLeaderCollectorActor(leaderActor.underlyingActor());
 
-        TestActorRef<MessageCollectorActor> collector = actorFactory.createTestActor(MessageCollectorActor.props()
-                .withDispatcher(Dispatchers.DefaultDispatcherId()),
-                        actorFactory.generateActorId("collector"));
-        actorFactory.createTestActor(
-                CollectingMockRaftActor.props(FOLLOWER_ID, ImmutableMap.of(LEADER_ID, leaderActor.path().toString()),
-                        configParams, NO_PERSISTENCE, collector).withDispatcher(Dispatchers.DefaultDispatcherId()),
-                followerActorId);
+        ActorRef follower1Collector = actorFactory.createActor(
+                MessageCollectorActor.props(), actorFactory.generateActorId("collector"));
+        final TestActorRef<CollectingMockRaftActor> follower1Actor = actorFactory.createTestActor(
+                CollectingMockRaftActor.props(FOLLOWER_ID, ImmutableMap.of(LEADER_ID, leaderActor.path().toString(),
+                        FOLLOWER_ID2, follower2ActorPath, downNodeId, ""), configParams, NO_PERSISTENCE,
+                        follower1Collector).withDispatcher(Dispatchers.DefaultDispatcherId()), follower1ActorId);
+
+        ActorRef follower2Collector = actorFactory.createActor(
+                MessageCollectorActor.props(), actorFactory.generateActorId("collector"));
+        final TestActorRef<CollectingMockRaftActor> follower2Actor = actorFactory.createTestActor(
+                CollectingMockRaftActor.props(FOLLOWER_ID2, ImmutableMap.of(LEADER_ID, leaderActor.path().toString(),
+                        FOLLOWER_ID, follower1ActorPath, downNodeId, ""), configParams, NO_PERSISTENCE,
+                        follower2Collector).withDispatcher(Dispatchers.DefaultDispatcherId()), follower2ActorId);
+
+        leaderActor.underlyingActor().waitForInitializeBehaviorComplete();
+        follower1Actor.underlyingActor().waitForInitializeBehaviorComplete();
+        follower2Actor.underlyingActor().waitForInitializeBehaviorComplete();
 
         leaderActor.tell(new RemoveServer(FOLLOWER_ID), testKit.getRef());
-        RemoveServerReply removeServerReply = testKit.expectMsgClass(JavaTestKit.duration("5 seconds"),
-                RemoveServerReply.class);
+        RemoveServerReply removeServerReply = testKit.expectMsgClass(Duration.ofSeconds(5), RemoveServerReply.class);
         assertEquals("getStatus", ServerChangeStatus.OK, removeServerReply.getStatus());
 
-        final ApplyState applyState = MessageCollectorActor.expectFirstMatching(leaderCollector, ApplyState.class);
+        ApplyState applyState = MessageCollectorActor.expectFirstMatching(leaderCollector, ApplyState.class);
         assertEquals(0L, applyState.getReplicatedLogEntry().getIndex());
         verifyServerConfigurationPayloadEntry(leaderActor.underlyingActor().getRaftActorContext().getReplicatedLog(),
-                votingServer(LEADER_ID));
+                votingServer(LEADER_ID), votingServer(FOLLOWER_ID2), votingServer(downNodeId));
+
+        applyState = MessageCollectorActor.expectFirstMatching(follower2Collector, ApplyState.class);
+        assertEquals(0L, applyState.getReplicatedLogEntry().getIndex());
+        verifyServerConfigurationPayloadEntry(leaderActor.underlyingActor().getRaftActorContext().getReplicatedLog(),
+                votingServer(LEADER_ID), votingServer(FOLLOWER_ID2), votingServer(downNodeId));
 
         RaftActorBehavior currentBehavior = leaderActor.underlyingActor().getCurrentBehavior();
         assertTrue("Expected Leader", currentBehavior instanceof Leader);
-        assertEquals("Follower ids size", 0, ((Leader)currentBehavior).getFollowerIds().size());
+        assertEquals("Follower ids size", 2, ((Leader)currentBehavior).getFollowerIds().size());
 
-        MessageCollectorActor.expectFirstMatching(collector, ServerRemoved.class);
+        MessageCollectorActor.expectFirstMatching(follower1Collector, ServerRemoved.class);
 
         LOG.info("testRemoveServer ending");
     }
@@ -912,12 +925,10 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
                         initialActorContext).withDispatcher(Dispatchers.DefaultDispatcherId()),
                 actorFactory.generateActorId(LEADER_ID));
 
-        final TestActorRef<MessageCollectorActor> leaderCollector =
-                newLeaderCollectorActor(leaderActor.underlyingActor());
+        final ActorRef leaderCollector = newLeaderCollectorActor(leaderActor.underlyingActor());
 
-        final TestActorRef<MessageCollectorActor> followerCollector =
-                actorFactory.createTestActor(MessageCollectorActor.props()
-                .withDispatcher(Dispatchers.DefaultDispatcherId()), actorFactory.generateActorId("collector"));
+        final ActorRef followerCollector =
+                actorFactory.createActor(MessageCollectorActor.props(), actorFactory.generateActorId("collector"));
         actorFactory.createTestActor(
                 CollectingMockRaftActor.props(FOLLOWER_ID, ImmutableMap.of(LEADER_ID, leaderActor.path().toString()),
                         configParams, NO_PERSISTENCE, followerCollector)
@@ -925,8 +936,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
                 followerActorId);
 
         leaderActor.tell(new RemoveServer(LEADER_ID), testKit.getRef());
-        RemoveServerReply removeServerReply = testKit.expectMsgClass(JavaTestKit.duration("5 seconds"),
-                RemoveServerReply.class);
+        RemoveServerReply removeServerReply = testKit.expectMsgClass(Duration.ofSeconds(5), RemoveServerReply.class);
         assertEquals("getStatus", ServerChangeStatus.OK, removeServerReply.getStatus());
 
         final ApplyState applyState = MessageCollectorActor.expectFirstMatching(followerCollector, ApplyState.class);
@@ -949,8 +959,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
                 actorFactory.generateActorId(LEADER_ID));
 
         leaderActor.tell(new RemoveServer(LEADER_ID), testKit.getRef());
-        RemoveServerReply removeServerReply = testKit.expectMsgClass(JavaTestKit.duration("5 seconds"),
-                RemoveServerReply.class);
+        RemoveServerReply removeServerReply = testKit.expectMsgClass(Duration.ofSeconds(5), RemoveServerReply.class);
         assertEquals("getStatus", ServerChangeStatus.NOT_SUPPORTED, removeServerReply.getStatus());
 
         LOG.info("testRemoveServerLeaderWithNoFollowers ending");
@@ -973,19 +982,17 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
                 MockLeaderRaftActor.props(ImmutableMap.of(FOLLOWER_ID, follower1ActorPath,
                         FOLLOWER_ID2, follower2ActorPath), new MockRaftActorContext())
                         .withDispatcher(Dispatchers.DefaultDispatcherId()), actorFactory.generateActorId(LEADER_ID));
-        TestActorRef<MessageCollectorActor> leaderCollector = newLeaderCollectorActor(leaderActor.underlyingActor());
+        ActorRef leaderCollector = newLeaderCollectorActor(leaderActor.underlyingActor());
 
-        TestActorRef<MessageCollectorActor> follower1Collector = actorFactory.createTestActor(
-                MessageCollectorActor.props().withDispatcher(Dispatchers.DefaultDispatcherId()),
-                actorFactory.generateActorId("collector"));
+        ActorRef follower1Collector = actorFactory.createActor(
+                MessageCollectorActor.props(), actorFactory.generateActorId("collector"));
         final TestActorRef<CollectingMockRaftActor> follower1RaftActor = actorFactory.createTestActor(
                 CollectingMockRaftActor.props(FOLLOWER_ID, ImmutableMap.of(LEADER_ID, leaderActor.path().toString(),
                         FOLLOWER_ID2, follower2ActorPath), configParams, NO_PERSISTENCE, follower1Collector)
                         .withDispatcher(Dispatchers.DefaultDispatcherId()), follower1ActorId);
 
-        TestActorRef<MessageCollectorActor> follower2Collector = actorFactory.createTestActor(
-                MessageCollectorActor.props().withDispatcher(Dispatchers.DefaultDispatcherId()),
-                actorFactory.generateActorId("collector"));
+        ActorRef follower2Collector = actorFactory.createActor(
+                MessageCollectorActor.props(), actorFactory.generateActorId("collector"));
         final TestActorRef<CollectingMockRaftActor> follower2RaftActor = actorFactory.createTestActor(
                 CollectingMockRaftActor.props(FOLLOWER_ID2, ImmutableMap.of(LEADER_ID, leaderActor.path().toString(),
                         FOLLOWER_ID, follower1ActorPath), configParams, NO_PERSISTENCE, follower2Collector)
@@ -995,7 +1002,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
 
         leaderActor.tell(new ChangeServersVotingStatus(ImmutableMap.of(FOLLOWER_ID, false, FOLLOWER_ID2, false)),
                 testKit.getRef());
-        ServerChangeReply reply = testKit.expectMsgClass(JavaTestKit.duration("5 seconds"), ServerChangeReply.class);
+        ServerChangeReply reply = testKit.expectMsgClass(Duration.ofSeconds(5), ServerChangeReply.class);
         assertEquals("getStatus", ServerChangeStatus.OK, reply.getStatus());
 
         final ApplyState applyState = MessageCollectorActor.expectFirstMatching(leaderCollector, ApplyState.class);
@@ -1020,7 +1027,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
         // Send second ChangeServersVotingStatus message
 
         leaderActor.tell(new ChangeServersVotingStatus(ImmutableMap.of(FOLLOWER_ID, true)), testKit.getRef());
-        reply = testKit.expectMsgClass(JavaTestKit.duration("5 seconds"), ServerChangeReply.class);
+        reply = testKit.expectMsgClass(Duration.ofSeconds(5), ServerChangeReply.class);
         assertEquals("getStatus", ServerChangeStatus.OK, reply.getStatus());
 
         MessageCollectorActor.expectFirstMatching(leaderCollector, ApplyState.class);
@@ -1054,19 +1061,17 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
                 MockLeaderRaftActor.props(ImmutableMap.of(FOLLOWER_ID, follower1ActorPath,
                         FOLLOWER_ID2, follower2ActorPath), new MockRaftActorContext())
                         .withDispatcher(Dispatchers.DefaultDispatcherId()), actorFactory.generateActorId(LEADER_ID));
-        TestActorRef<MessageCollectorActor> leaderCollector = newLeaderCollectorActor(leaderActor.underlyingActor());
+        ActorRef leaderCollector = newLeaderCollectorActor(leaderActor.underlyingActor());
 
-        TestActorRef<MessageCollectorActor> follower1Collector = actorFactory.createTestActor(
-                MessageCollectorActor.props().withDispatcher(Dispatchers.DefaultDispatcherId()),
-                actorFactory.generateActorId("collector"));
+        ActorRef follower1Collector = actorFactory.createActor(
+                MessageCollectorActor.props(), actorFactory.generateActorId("collector"));
         final TestActorRef<CollectingMockRaftActor> follower1RaftActor = actorFactory.createTestActor(
                 CollectingMockRaftActor.props(FOLLOWER_ID, ImmutableMap.of(LEADER_ID, leaderActor.path().toString(),
                         FOLLOWER_ID2, follower2ActorPath), configParams, NO_PERSISTENCE, follower1Collector)
                         .withDispatcher(Dispatchers.DefaultDispatcherId()), follower1ActorId);
 
-        TestActorRef<MessageCollectorActor> follower2Collector = actorFactory.createTestActor(
-                MessageCollectorActor.props().withDispatcher(Dispatchers.DefaultDispatcherId()),
-                actorFactory.generateActorId("collector"));
+        ActorRef follower2Collector = actorFactory.createActor(
+                MessageCollectorActor.props(), actorFactory.generateActorId("collector"));
         final TestActorRef<CollectingMockRaftActor> follower2RaftActor = actorFactory.createTestActor(
                 CollectingMockRaftActor.props(FOLLOWER_ID2, ImmutableMap.of(LEADER_ID, leaderActor.path().toString(),
                         FOLLOWER_ID, follower1ActorPath), configParams, NO_PERSISTENCE, follower2Collector)
@@ -1075,7 +1080,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
         // Send ChangeServersVotingStatus message
 
         leaderActor.tell(new ChangeServersVotingStatus(ImmutableMap.of(LEADER_ID, false)), testKit.getRef());
-        ServerChangeReply reply = testKit.expectMsgClass(JavaTestKit.duration("5 seconds"), ServerChangeReply.class);
+        ServerChangeReply reply = testKit.expectMsgClass(Duration.ofSeconds(5), ServerChangeReply.class);
         assertEquals("getStatus", ServerChangeStatus.OK, reply.getStatus());
 
         MessageCollectorActor.expectFirstMatching(leaderCollector, ApplyState.class);
@@ -1107,7 +1112,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
                         .withDispatcher(Dispatchers.DefaultDispatcherId()), actorFactory.generateActorId(LEADER_ID));
 
         leaderActor.tell(new ChangeServersVotingStatus(ImmutableMap.of(LEADER_ID, false)), testKit.getRef());
-        ServerChangeReply reply = testKit.expectMsgClass(JavaTestKit.duration("5 seconds"), ServerChangeReply.class);
+        ServerChangeReply reply = testKit.expectMsgClass(Duration.ofSeconds(5), ServerChangeReply.class);
         assertEquals("getStatus", ServerChangeStatus.INVALID_REQUEST, reply.getStatus());
 
         LOG.info("testChangeLeaderToNonVotingInSingleNode ending");
@@ -1131,7 +1136,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
         ServerConfigurationPayload persistedServerConfig = new ServerConfigurationPayload(Arrays.asList(
                 new ServerInfo(node1ID, false), new ServerInfo(node2ID, false),
                 new ServerInfo("downNode1", true), new ServerInfo("downNode2", true)));
-        ReplicatedLogImplEntry persistedServerConfigEntry = new ReplicatedLogImplEntry(0, 1, persistedServerConfig);
+        SimpleReplicatedLogEntry persistedServerConfigEntry = new SimpleReplicatedLogEntry(0, 1, persistedServerConfig);
 
         InMemoryJournal.addEntry(node1ID, 1, new UpdateElectionTerm(1, "downNode1"));
         InMemoryJournal.addEntry(node1ID, 2, persistedServerConfigEntry);
@@ -1140,17 +1145,15 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
         InMemoryJournal.addEntry(node2ID, 2, persistedServerConfigEntry);
         InMemoryJournal.addEntry(node2ID, 3, new ApplyJournalEntries(0));
 
-        TestActorRef<MessageCollectorActor> node1Collector = actorFactory.createTestActor(
-                MessageCollectorActor.props().withDispatcher(Dispatchers.DefaultDispatcherId()),
-                actorFactory.generateActorId("collector"));
+        ActorRef node1Collector = actorFactory.createActor(
+                MessageCollectorActor.props(), actorFactory.generateActorId("collector"));
         TestActorRef<CollectingMockRaftActor> node1RaftActorRef = actorFactory.createTestActor(
                 CollectingMockRaftActor.props(node1ID, ImmutableMap.<String, String>of(), configParams,
                         PERSISTENT, node1Collector).withDispatcher(Dispatchers.DefaultDispatcherId()), node1ID);
         CollectingMockRaftActor node1RaftActor = node1RaftActorRef.underlyingActor();
 
-        TestActorRef<MessageCollectorActor> node2Collector = actorFactory.createTestActor(
-                MessageCollectorActor.props().withDispatcher(Dispatchers.DefaultDispatcherId()),
-                actorFactory.generateActorId("collector"));
+        ActorRef node2Collector = actorFactory.createActor(
+                MessageCollectorActor.props(), actorFactory.generateActorId("collector"));
         TestActorRef<CollectingMockRaftActor> node2RaftActorRef = actorFactory.createTestActor(
                 CollectingMockRaftActor.props(node2ID, ImmutableMap.<String, String>of(), configParams,
                         PERSISTENT, node2Collector).withDispatcher(Dispatchers.DefaultDispatcherId()), node2ID);
@@ -1182,28 +1185,28 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
         ChangeServersVotingStatus changeServers = new ChangeServersVotingStatus(ImmutableMap.of(node1ID, true,
                 node2ID, true, "downNode1", false, "downNode2", false));
         node1RaftActorRef.tell(changeServers, testKit.getRef());
-        ServerChangeReply reply = testKit.expectMsgClass(JavaTestKit.duration("5 seconds"), ServerChangeReply.class);
+        ServerChangeReply reply = testKit.expectMsgClass(Duration.ofSeconds(5), ServerChangeReply.class);
         assertEquals("getStatus", ServerChangeStatus.NO_LEADER, reply.getStatus());
+        assertEquals("getRaftState", RaftState.Follower, node1RaftActor.getRaftState());
 
         // Send an AppendEntries so node1 has a leaderId
 
-        MessageCollectorActor.clearMessages(node1Collector);
-
         long term = node1RaftActor.getRaftActorContext().getTermInformation().getCurrentTerm();
         node1RaftActorRef.tell(new AppendEntries(term, "downNode1", -1L, -1L,
                 Collections.<ReplicatedLogEntry>emptyList(), 0, -1, (short)1), ActorRef.noSender());
 
-        // Wait for the ElectionTimeout to clear the leaderId. he leaderId must be null so on the
+        // Wait for the ElectionTimeout to clear the leaderId. The leaderId must be null so on the next
         // ChangeServersVotingStatus message, it will try to elect a leader.
 
-        MessageCollectorActor.expectFirstMatching(node1Collector, ElectionTimeout.class);
+        AbstractRaftActorIntegrationTest.verifyRaftState(node1RaftActorRef,
+            rs -> assertEquals("getLeader", null, rs.getLeader()));
 
         // Update node2's peer address and send the message again
 
         node1RaftActor.setPeerAddress(node2ID, node2RaftActorRef.path().toString());
 
         node1RaftActorRef.tell(changeServers, testKit.getRef());
-        reply = testKit.expectMsgClass(JavaTestKit.duration("5 seconds"), ServerChangeReply.class);
+        reply = testKit.expectMsgClass(Duration.ofSeconds(5), ServerChangeReply.class);
         assertEquals("getStatus", ServerChangeStatus.OK, reply.getStatus());
 
         ApplyJournalEntries apply = MessageCollectorActor.expectFirstMatching(node1Collector,
@@ -1239,7 +1242,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
 
         ServerConfigurationPayload persistedServerConfig = new ServerConfigurationPayload(Arrays.asList(
                 new ServerInfo(node1ID, false), new ServerInfo(node2ID, true)));
-        ReplicatedLogImplEntry persistedServerConfigEntry = new ReplicatedLogImplEntry(0, 1, persistedServerConfig);
+        SimpleReplicatedLogEntry persistedServerConfigEntry = new SimpleReplicatedLogEntry(0, 1, persistedServerConfig);
 
         InMemoryJournal.addEntry(node1ID, 1, new UpdateElectionTerm(1, "node1"));
         InMemoryJournal.addEntry(node1ID, 2, persistedServerConfigEntry);
@@ -1250,9 +1253,8 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
         configParams1.setHeartBeatInterval(new FiniteDuration(100, TimeUnit.MILLISECONDS));
         configParams1.setElectionTimeoutFactor(1);
         configParams1.setPeerAddressResolver(peerAddressResolver);
-        TestActorRef<MessageCollectorActor> node1Collector = actorFactory.createTestActor(
-                MessageCollectorActor.props().withDispatcher(Dispatchers.DefaultDispatcherId()),
-                actorFactory.generateActorId("collector"));
+        ActorRef node1Collector = actorFactory.createActor(
+                MessageCollectorActor.props(), actorFactory.generateActorId("collector"));
         TestActorRef<CollectingMockRaftActor> node1RaftActorRef = actorFactory.createTestActor(
                 CollectingMockRaftActor.props(node1ID, ImmutableMap.<String, String>of(), configParams1,
                         PERSISTENT, node1Collector).withDispatcher(Dispatchers.DefaultDispatcherId()), node1ID);
@@ -1261,9 +1263,8 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
         DefaultConfigParamsImpl configParams2 = new DefaultConfigParamsImpl();
         configParams2.setElectionTimeoutFactor(1000000);
         configParams2.setPeerAddressResolver(peerAddressResolver);
-        TestActorRef<MessageCollectorActor> node2Collector = actorFactory.createTestActor(
-                MessageCollectorActor.props().withDispatcher(Dispatchers.DefaultDispatcherId()),
-                actorFactory.generateActorId("collector"));
+        ActorRef node2Collector = actorFactory.createActor(
+                MessageCollectorActor.props(), actorFactory.generateActorId("collector"));
         TestActorRef<CollectingMockRaftActor> node2RaftActorRef = actorFactory.createTestActor(
                 CollectingMockRaftActor.props(node2ID, ImmutableMap.<String, String>of(), configParams2,
                         PERSISTENT, node2Collector).withDispatcher(Dispatchers.DefaultDispatcherId()), node2ID);
@@ -1279,7 +1280,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
 
         ChangeServersVotingStatus changeServers = new ChangeServersVotingStatus(ImmutableMap.of(node1ID, true));
         node1RaftActorRef.tell(changeServers, testKit.getRef());
-        ServerChangeReply reply = testKit.expectMsgClass(JavaTestKit.duration("5 seconds"), ServerChangeReply.class);
+        ServerChangeReply reply = testKit.expectMsgClass(Duration.ofSeconds(5), ServerChangeReply.class);
         assertEquals("getStatus", ServerChangeStatus.NO_LEADER, reply.getStatus());
 
         assertEquals("Server config", Sets.newHashSet(nonVotingServer(node1ID), votingServer(node2ID)),
@@ -1307,27 +1308,25 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
 
         ServerConfigurationPayload persistedServerConfig = new ServerConfigurationPayload(Arrays.asList(
                 new ServerInfo(node1ID, false), new ServerInfo(node2ID, false)));
-        ReplicatedLogImplEntry persistedServerConfigEntry = new ReplicatedLogImplEntry(0, 1, persistedServerConfig);
+        SimpleReplicatedLogEntry persistedServerConfigEntry = new SimpleReplicatedLogEntry(0, 1, persistedServerConfig);
 
         InMemoryJournal.addEntry(node1ID, 1, new UpdateElectionTerm(1, "node1"));
         InMemoryJournal.addEntry(node1ID, 2, persistedServerConfigEntry);
         InMemoryJournal.addEntry(node2ID, 1, new UpdateElectionTerm(1, "node1"));
         InMemoryJournal.addEntry(node2ID, 2, persistedServerConfigEntry);
-        InMemoryJournal.addEntry(node2ID, 3, new ReplicatedLogImplEntry(1, 1,
+        InMemoryJournal.addEntry(node2ID, 3, new SimpleReplicatedLogEntry(1, 1,
                 new MockRaftActorContext.MockPayload("2")));
         InMemoryJournal.addEntry(node2ID, 4, new ApplyJournalEntries(1));
 
-        TestActorRef<MessageCollectorActor> node1Collector = actorFactory.createTestActor(
-                MessageCollectorActor.props().withDispatcher(Dispatchers.DefaultDispatcherId()),
-                actorFactory.generateActorId("collector"));
+        ActorRef node1Collector = actorFactory.createActor(
+                MessageCollectorActor.props(), actorFactory.generateActorId("collector"));
         TestActorRef<CollectingMockRaftActor> node1RaftActorRef = actorFactory.createTestActor(
                 CollectingMockRaftActor.props(node1ID, ImmutableMap.<String, String>of(), configParams,
                         PERSISTENT, node1Collector).withDispatcher(Dispatchers.DefaultDispatcherId()), node1ID);
         final CollectingMockRaftActor node1RaftActor = node1RaftActorRef.underlyingActor();
 
-        TestActorRef<MessageCollectorActor> node2Collector = actorFactory.createTestActor(
-                MessageCollectorActor.props().withDispatcher(Dispatchers.DefaultDispatcherId()),
-                actorFactory.generateActorId("collector"));
+        ActorRef node2Collector = actorFactory.createActor(
+                MessageCollectorActor.props(), actorFactory.generateActorId("collector"));
         TestActorRef<CollectingMockRaftActor> node2RaftActorRef = actorFactory.createTestActor(
                 CollectingMockRaftActor.props(node2ID, ImmutableMap.<String, String>of(), configParams,
                         PERSISTENT, node2Collector).withDispatcher(Dispatchers.DefaultDispatcherId()), node2ID);
@@ -1341,7 +1340,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
         ChangeServersVotingStatus changeServers = new ChangeServersVotingStatus(
                 ImmutableMap.of(node1ID, true, node2ID, true));
         node1RaftActorRef.tell(changeServers, testKit.getRef());
-        ServerChangeReply reply = testKit.expectMsgClass(JavaTestKit.duration("5 seconds"), ServerChangeReply.class);
+        ServerChangeReply reply = testKit.expectMsgClass(Duration.ofSeconds(5), ServerChangeReply.class);
         assertEquals("getStatus", ServerChangeStatus.OK, reply.getStatus());
 
         MessageCollectorActor.expectFirstMatching(node2Collector, ApplyJournalEntries.class);
@@ -1375,24 +1374,22 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
 
         ServerConfigurationPayload persistedServerConfig = new ServerConfigurationPayload(Arrays.asList(
                 new ServerInfo(node1ID, false), new ServerInfo(node2ID, true)));
-        ReplicatedLogImplEntry persistedServerConfigEntry = new ReplicatedLogImplEntry(0, 1, persistedServerConfig);
+        SimpleReplicatedLogEntry persistedServerConfigEntry = new SimpleReplicatedLogEntry(0, 1, persistedServerConfig);
 
         InMemoryJournal.addEntry(node1ID, 1, new UpdateElectionTerm(1, "node1"));
         InMemoryJournal.addEntry(node1ID, 2, persistedServerConfigEntry);
         InMemoryJournal.addEntry(node2ID, 1, new UpdateElectionTerm(1, "node1"));
         InMemoryJournal.addEntry(node2ID, 2, persistedServerConfigEntry);
 
-        TestActorRef<MessageCollectorActor> node1Collector = actorFactory.createTestActor(
-                MessageCollectorActor.props().withDispatcher(Dispatchers.DefaultDispatcherId()),
-                actorFactory.generateActorId("collector"));
+        ActorRef node1Collector = actorFactory.createActor(
+                MessageCollectorActor.props(), actorFactory.generateActorId("collector"));
         TestActorRef<CollectingMockRaftActor> node1RaftActorRef = actorFactory.createTestActor(
                 CollectingMockRaftActor.props(node1ID, ImmutableMap.<String, String>of(), configParams,
                         PERSISTENT, node1Collector).withDispatcher(Dispatchers.DefaultDispatcherId()), node1ID);
         final CollectingMockRaftActor node1RaftActor = node1RaftActorRef.underlyingActor();
 
-        TestActorRef<MessageCollectorActor> node2Collector = actorFactory.createTestActor(
-                MessageCollectorActor.props().withDispatcher(Dispatchers.DefaultDispatcherId()),
-                actorFactory.generateActorId("collector"));
+        ActorRef node2Collector = actorFactory.createActor(
+                MessageCollectorActor.props(), actorFactory.generateActorId("collector"));
         TestActorRef<CollectingMockRaftActor> node2RaftActorRef = actorFactory.createTestActor(
                 CollectingMockRaftActor.props(node2ID, ImmutableMap.<String, String>of(), configParams,
                         PERSISTENT, node2Collector).withDispatcher(Dispatchers.DefaultDispatcherId()), node2ID);
@@ -1413,7 +1410,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
 
         node2RaftActorRef.tell(TimeoutNow.INSTANCE, ActorRef.noSender());
 
-        ServerChangeReply reply = testKit.expectMsgClass(JavaTestKit.duration("5 seconds"), ServerChangeReply.class);
+        ServerChangeReply reply = testKit.expectMsgClass(Duration.ofSeconds(5), ServerChangeReply.class);
         assertEquals("getStatus", ServerChangeStatus.OK, reply.getStatus());
 
         MessageCollectorActor.expectFirstMatching(node1Collector, ApplyJournalEntries.class);
@@ -1451,14 +1448,13 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
         return new ServerInfo(id, false);
     }
 
-    private TestActorRef<MessageCollectorActor> newLeaderCollectorActor(MockLeaderRaftActor leaderRaftActor) {
+    private ActorRef newLeaderCollectorActor(MockLeaderRaftActor leaderRaftActor) {
         return newCollectorActor(leaderRaftActor, LEADER_ID);
     }
 
-    private TestActorRef<MessageCollectorActor> newCollectorActor(AbstractMockRaftActor raftActor, String id) {
-        TestActorRef<MessageCollectorActor> collectorActor = actorFactory.createTestActor(
-                MessageCollectorActor.props().withDispatcher(Dispatchers.DefaultDispatcherId()),
-                actorFactory.generateActorId(id + "Collector"));
+    private ActorRef newCollectorActor(AbstractMockRaftActor raftActor, String id) {
+        ActorRef collectorActor = actorFactory.createTestActor(
+                MessageCollectorActor.props(), actorFactory.generateActorId(id + "Collector"));
         raftActor.setCollectorActor(collectorActor);
         return collectorActor;
     }
@@ -1470,23 +1466,24 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
         assertEquals("Server config", Sets.newHashSet(expected), Sets.newHashSet(payload.getServerConfig()));
     }
 
-    private static RaftActorContextImpl newFollowerContext(String id, TestActorRef<? extends UntypedActor> actor) {
+    private static RaftActorContextImpl newFollowerContext(String id, TestActorRef<? extends AbstractActor> actor) {
         DefaultConfigParamsImpl configParams = new DefaultConfigParamsImpl();
         configParams.setHeartBeatInterval(new FiniteDuration(100, TimeUnit.MILLISECONDS));
         configParams.setElectionTimeoutFactor(100000);
-        NonPersistentDataProvider noPersistence = new NonPersistentDataProvider();
+        NonPersistentDataProvider noPersistence = new NonPersistentDataProvider(Runnable::run);
         ElectionTermImpl termInfo = new ElectionTermImpl(noPersistence, id, LOG);
         termInfo.update(1, LEADER_ID);
         return new RaftActorContextImpl(actor, actor.underlyingActor().getContext(),
-                id, termInfo, -1, -1, ImmutableMap.of(LEADER_ID, ""), configParams, noPersistence, LOG);
+                id, termInfo, -1, -1, ImmutableMap.of(LEADER_ID, ""), configParams,
+                noPersistence, applyState -> actor.tell(applyState, actor), LOG,  MoreExecutors.directExecutor());
     }
 
     abstract static class AbstractMockRaftActor extends MockRaftActor {
-        private volatile TestActorRef<MessageCollectorActor> collectorActor;
+        private volatile ActorRef collectorActor;
         private volatile Class<?> dropMessageOfType;
 
         AbstractMockRaftActor(String id, Map<String, String> peerAddresses, Optional<ConfigParams> config,
-                boolean persistent, TestActorRef<MessageCollectorActor> collectorActor) {
+                boolean persistent, ActorRef collectorActor) {
             super(builder().id(id).peerAddresses(peerAddresses).config(config.get())
                     .persistent(Optional.of(persistent)));
             this.collectorActor = collectorActor;
@@ -1496,7 +1493,7 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
             this.dropMessageOfType = dropMessageOfType;
         }
 
-        void setCollectorActor(TestActorRef<MessageCollectorActor> collectorActor) {
+        void setCollectorActor(ActorRef collectorActor) {
             this.collectorActor = collectorActor;
         }
 
@@ -1515,22 +1512,29 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
     public static class CollectingMockRaftActor extends AbstractMockRaftActor {
 
         CollectingMockRaftActor(String id, Map<String, String> peerAddresses, Optional<ConfigParams> config,
-                boolean persistent, TestActorRef<MessageCollectorActor> collectorActor) {
+                boolean persistent, ActorRef collectorActor) {
             super(id, peerAddresses, config, persistent, collectorActor);
             snapshotCohortDelegate = new RaftActorSnapshotCohort() {
                 @Override
-                public void createSnapshot(ActorRef actorRef) {
-                    actorRef.tell(new CaptureSnapshotReply(new byte[0]), actorRef);
+                public void createSnapshot(ActorRef actorRef, java.util.Optional<OutputStream> installSnapshotStream) {
+                    actorRef.tell(new CaptureSnapshotReply(ByteState.empty(), installSnapshotStream), actorRef);
                 }
 
                 @Override
-                public void applySnapshot(byte[] snapshotBytes) {
+                public void applySnapshot(
+                        org.opendaylight.controller.cluster.raft.persisted.Snapshot.State snapshotState) {
+                }
+
+                @Override
+                public org.opendaylight.controller.cluster.raft.persisted.Snapshot.State deserializeSnapshot(
+                        ByteSource snapshotBytes) {
+                    throw new UnsupportedOperationException();
                 }
             };
         }
 
         public static Props props(final String id, final Map<String, String> peerAddresses,
-                ConfigParams config, boolean persistent, TestActorRef<MessageCollectorActor> collectorActor) {
+                ConfigParams config, boolean persistent, ActorRef collectorActor) {
 
             return Props.create(CollectingMockRaftActor.class, id, peerAddresses, Optional.of(config),
                     persistent, collectorActor);
@@ -1565,12 +1569,13 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
 
         @Override
         @SuppressWarnings("checkstyle:IllegalCatch")
-        public void createSnapshot(ActorRef actorRef) {
-            try {
-                actorRef.tell(new CaptureSnapshotReply(RaftActorTest.fromObject(getState()).toByteArray()), actorRef);
-            } catch (Exception e) {
-                LOG.error("createSnapshot failed", e);
+        public void createSnapshot(ActorRef actorRef, java.util.Optional<OutputStream> installSnapshotStream) {
+            MockSnapshotState snapshotState = new MockSnapshotState(new ArrayList<>(getState()));
+            if (installSnapshotStream.isPresent()) {
+                SerializationUtils.serialize(snapshotState, installSnapshotStream.get());
             }
+
+            actorRef.tell(new CaptureSnapshotReply(snapshotState, installSnapshotStream), actorRef);
         }
 
         static Props props(Map<String, String> peerAddresses, RaftActorContext fromContext) {
@@ -1582,13 +1587,13 @@ public class RaftActorServerConfigurationSupportTest extends AbstractActorTest {
     }
 
     public static class MockNewFollowerRaftActor extends AbstractMockRaftActor {
-        public MockNewFollowerRaftActor(ConfigParams config, TestActorRef<MessageCollectorActor> collectorActor) {
+        public MockNewFollowerRaftActor(ConfigParams config, ActorRef collectorActor) {
             super(NEW_SERVER_ID, Maps.<String, String>newHashMap(), Optional.of(config), NO_PERSISTENCE,
                     collectorActor);
             setPersistence(false);
         }
 
-        static Props props(ConfigParams config, TestActorRef<MessageCollectorActor> collectorActor) {
+        static Props props(ConfigParams config, ActorRef collectorActor) {
             return Props.create(MockNewFollowerRaftActor.class, config, collectorActor);
         }
     }