05:16:21,395 WARN  [org.apache.activemq.artemis.core.server] AMQ222086: error handling packet PACKET(ReplicationDeleteMessage)[type=93, channelID=2, packetObject=ReplicationDeleteMessage] for replication: java.lang.NullPointerException
	at org.apache.activemq.artemis.core.io.buffer.TimedBuffer.checkSize(TimedBuffer.java:216) [artemis-journal-1.1.1-SNAPSHOT.jar:1.1.1-SNAPSHOT]
	at org.apache.activemq.artemis.core.io.AbstractSequentialFile.fits(AbstractSequentialFile.java:185) [artemis-journal-1.1.1-SNAPSHOT.jar:1.1.1-SNAPSHOT]
	at org.apache.activemq.artemis.core.journal.impl.JournalImpl.switchFileIfNecessary(JournalImpl.java:2721) [artemis-journal-1.1.1-SNAPSHOT.jar:1.1.1-SNAPSHOT]
	at org.apache.activemq.artemis.core.journal.impl.FileWrapperJournal.writeRecord(FileWrapperJournal.java:112) [artemis-journal-1.1.1-SNAPSHOT.jar:1.1.1-SNAPSHOT]
	at org.apache.activemq.artemis.core.journal.impl.FileWrapperJournal.appendDeleteRecord(FileWrapperJournal.java:130) [artemis-journal-1.1.1-SNAPSHOT.jar:1.1.1-SNAPSHOT]
	at org.apache.activemq.artemis.core.journal.impl.JournalBase.appendDeleteRecord(JournalBase.java:183) [artemis-journal-1.1.1-SNAPSHOT.jar:1.1.1-SNAPSHOT]
	at org.apache.activemq.artemis.core.journal.impl.FileWrapperJournal.appendDeleteRecord(FileWrapperJournal.java:51) [artemis-journal-1.1.1-SNAPSHOT.jar:1.1.1-SNAPSHOT]
	at org.apache.activemq.artemis.core.replication.ReplicationEndpoint.handleAppendDelete(ReplicationEndpoint.java:638) [artemis-server-1.1.1-SNAPSHOT.jar:1.1.1-SNAPSHOT]
	at org.apache.activemq.artemis.core.replication.ReplicationEndpoint.handlePacket(ReplicationEndpoint.java:173) [artemis-server-1.1.1-SNAPSHOT.jar:1.1.1-SNAPSHOT]
	at org.apache.activemq.artemis.tests.integration.cluster.util.BackupSyncDelay$ReplicationChannelHandler.handlePacket(BackupSyncDelay.java:186) [:]
	at org.apache.activemq.artemis.core.protocol.core.impl.ChannelImpl.handlePacket(ChannelImpl.java:565) [artemis-core-client-1.1.1-SNAPSHOT.jar:1.1.1-SNAPSHOT]
	at org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl.doBufferReceived(RemotingConnectionImpl.java:349) [artemis-core-client-1.1.1-SNAPSHOT.jar:1.1.1-SNAPSHOT]
	at org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl.bufferReceived(RemotingConnectionImpl.java:331) [artemis-core-client-1.1.1-SNAPSHOT.jar:1.1.1-SNAPSHOT]
	at org.apache.activemq.artemis.core.client.impl.ClientSessionFactoryImpl$DelegatingBufferHandler.bufferReceived(ClientSessionFactoryImpl.java:1123) [artemis-core-client-1.1.1-SNAPSHOT.jar:1.1.1-SNAPSHOT]
	at org.apache.activemq.artemis.core.remoting.impl.invm.InVMConnection$1.run(InVMConnection.java:163) [artemis-server-1.1.1-SNAPSHOT.jar:1.1.1-SNAPSHOT]
	at org.apache.activemq.artemis.utils.OrderedExecutorFactory$OrderedExecutor$1.run(OrderedExecutorFactory.java:94) [artemis-core-client-1.1.1-SNAPSHOT.jar:1.1.1-SNAPSHOT]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [rt.jar:1.8.0_51]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [rt.jar:1.8.0_51]
	at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_51]

org.apache.activemq.artemis.api.core.ActiveMQConnectionTimedOutException: AMQ119014: Timed out after waiting 30,000 ms for response when sending packet 41
	at org.apache.activemq.artemis.core.protocol.core.impl.ChannelImpl.sendBlocking(ChannelImpl.java:356)
	at org.apache.activemq.artemis.core.protocol.core.impl.ActiveMQSessionContext.sendACK(ActiveMQSessionContext.java:410)
	at org.apache.activemq.artemis.core.client.impl.ClientSessionImpl.acknowledge(ClientSessionImpl.java:678)
	at org.apache.activemq.artemis.core.client.impl.ClientConsumerImpl.doAck(ClientConsumerImpl.java:1035)
	at org.apache.activemq.artemis.core.client.impl.ClientConsumerImpl.acknowledge(ClientConsumerImpl.java:702)
	at org.apache.activemq.artemis.core.client.impl.ClientMessageImpl.acknowledge(ClientMessageImpl.java:96)
	at org.apache.activemq.artemis.core.client.impl.ClientMessageImpl.acknowledge(ClientMessageImpl.java:38)
	at org.apache.activemq.artemis.tests.util.ActiveMQTestBase.receiveMessages(ActiveMQTestBase.java:1610)
	at org.apache.activemq.artemis.tests.integration.cluster.failover.FailoverTest.receiveMessages(FailoverTest.java:1609)
	at org.apache.activemq.artemis.tests.integration.cluster.failover.FailoverTest.testFailThenReceiveMoreMessagesAfterFailover2(FailoverTest.java:1596)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
	at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55)
	at org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:48)
	at org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:48)
	at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55)
	at org.junit.rules.RunRules.evaluate(RunRules.java:20)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
	at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:283)
	at org.apache.maven.surefire.junit4.JUnit4Provider.executeWithRerun(JUnit4Provider.java:173)
	at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:153)
	at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:128)
	at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:203)
	at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:155)
	at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:103)