Shutdown in REPL SYNC results in TimeoutException: Unable to acquire lock after

11:46:54,106 ERROR [org.infinispan.interceptors.InvocationContextInterceptor] (OOB-1720,null) ISPN000136: Execution error: org.infinispan.util.concurrent.TimeoutException: Unable to acquire lock after [15 seconds] on key [sgalNLPm8jvqZzLyQjwt4oZ3] for requestor [GlobalTransaction:<perf18/web>:3840:remote]! Lock held by [GlobalTransaction:<perf18/web>:3617:remote]
	at org.infinispan.util.concurrent.locks.LockManagerImpl.lock(LockManagerImpl.java:216)
	at org.infinispan.util.concurrent.locks.LockManagerImpl.acquireLock(LockManagerImpl.java:189)
	at org.infinispan.util.concurrent.locks.LockManagerImpl.acquireLock(LockManagerImpl.java:179)
	at org.infinispan.interceptors.locking.AbstractTxLockingInterceptor.lockKeyAndCheckOwnership(AbstractTxLockingInterceptor.java:209)
	at org.infinispan.interceptors.locking.AbstractTxLockingInterceptor.lockAndRegisterBackupLock(AbstractTxLockingInterceptor.java:136)
	at org.infinispan.interceptors.locking.OptimisticLockingInterceptor$LockAcquisitionVisitor.visitPutKeyValueCommand(OptimisticLockingInterceptor.java:243)
	at org.infinispan.commands.write.PutKeyValueCommand.acceptVisitor(PutKeyValueCommand.java:77)
	at org.infinispan.interceptors.locking.OptimisticLockingInterceptor.acquireLocksVisitingCommands(OptimisticLockingInterceptor.java:318)
	at org.infinispan.interceptors.locking.OptimisticLockingInterceptor.visitPrepareCommand(OptimisticLockingInterceptor.java:119)
	at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:133)
	at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116)
	at org.infinispan.interceptors.NotificationInterceptor.visitPrepareCommand(NotificationInterceptor.java:58)
	at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:133)
	at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116)
	at org.infinispan.interceptors.TxInterceptor.visitPrepareCommand(TxInterceptor.java:106)
	at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:133)
	at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116)
	at org.infinispan.interceptors.StateTransferLockInterceptor.handleWithRetries(StateTransferLockInterceptor.java:213)
	at org.infinispan.interceptors.StateTransferLockInterceptor.visitPrepareCommand(StateTransferLockInterceptor.java:85)
	at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:133)
	at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116)
	at org.infinispan.interceptors.base.CommandInterceptor.handleDefault(CommandInterceptor.java:130)
	at org.infinispan.commands.AbstractVisitor.visitPrepareCommand(AbstractVisitor.java:126)
	at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:133)
	at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116)
	at org.infinispan.interceptors.InvocationContextInterceptor.handleAll(InvocationContextInterceptor.java:131)
	at org.infinispan.interceptors.InvocationContextInterceptor.handleDefault(InvocationContextInterceptor.java:90)
	at org.infinispan.commands.AbstractVisitor.visitPrepareCommand(AbstractVisitor.java:126)
	at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:133)
	at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116)
	at org.infinispan.interceptors.BatchingInterceptor.handleDefault(BatchingInterceptor.java:70)
	at org.infinispan.commands.AbstractVisitor.visitPrepareCommand(AbstractVisitor.java:126)
	at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:133)
	at org.infinispan.interceptors.InterceptorChain.invoke(InterceptorChain.java:345)
	at org.infinispan.commands.tx.PrepareCommand.perform(PrepareCommand.java:128)
	at org.infinispan.remoting.InboundInvocationHandlerImpl.handleInternal(InboundInvocationHandlerImpl.java:127)
	at org.infinispan.remoting.InboundInvocationHandlerImpl.handleWithWaitForBlocks(InboundInvocationHandlerImpl.java:136)
	at org.infinispan.remoting.InboundInvocationHandlerImpl.handleWithRetry(InboundInvocationHandlerImpl.java:162)
	at org.infinispan.remoting.InboundInvocationHandlerImpl.handle(InboundInvocationHandlerImpl.java:114)
	at org.infinispan.remoting.transport.jgroups.CommandAwareRpcDispatcher.executeCommand(CommandAwareRpcDispatcher.java:221)
	at org.infinispan.remoting.transport.jgroups.CommandAwareRpcDispatcher.handle(CommandAwareRpcDispatcher.java:201)
	at org.jgroups.blocks.RequestCorrelator.handleRequest(RequestCorrelator.java:456) [jgroups-3.0.9.Final.jar:3.0.9.Final]
	at org.jgroups.blocks.RequestCorrelator.receiveMessage(RequestCorrelator.java:363) [jgroups-3.0.9.Final.jar:3.0.9.Final]
	at org.jgroups.blocks.RequestCorrelator.receive(RequestCorrelator.java:238) [jgroups-3.0.9.Final.jar:3.0.9.Final]
	at org.jgroups.blocks.MessageDispatcher$ProtocolAdapter.up(MessageDispatcher.java:543) [jgroups-3.0.9.Final.jar:3.0.9.Final]
	at org.jgroups.blocks.mux.MuxUpHandler.up(MuxUpHandler.java:130) [jgroups-3.0.9.Final.jar:3.0.9.Final]
	at org.jgroups.JChannel.up(JChannel.java:716) [jgroups-3.0.9.Final.jar:3.0.9.Final]
	at org.jgroups.stack.ProtocolStack.up(ProtocolStack.java:1026) [jgroups-3.0.9.Final.jar:3.0.9.Final]
	at org.jgroups.protocols.RSVP.up(RSVP.java:192) [jgroups-3.0.9.Final.jar:3.0.9.Final]
	at org.jgroups.protocols.FRAG2.up(FRAG2.java:181) [jgroups-3.0.9.Final.jar:3.0.9.Final]
	at org.jgroups.protocols.FlowControl.up(FlowControl.java:400) [jgroups-3.0.9.Final.jar:3.0.9.Final]
	at org.jgroups.protocols.FlowControl.up(FlowControl.java:418) [jgroups-3.0.9.Final.jar:3.0.9.Final]
	at org.jgroups.protocols.pbcast.GMS.up(GMS.java:889) [jgroups-3.0.9.Final.jar:3.0.9.Final]
	at org.jgroups.protocols.pbcast.STABLE.up(STABLE.java:244) [jgroups-3.0.9.Final.jar:3.0.9.Final]
	at org.jgroups.protocols.UNICAST2.up(UNICAST2.java:383) [jgroups-3.0.9.Final.jar:3.0.9.Final]
	at org.jgroups.protocols.pbcast.NAKACK.handleMessage(NAKACK.java:706) [jgroups-3.0.9.Final.jar:3.0.9.Final]
	at org.jgroups.protocols.pbcast.NAKACK.up(NAKACK.java:566) [jgroups-3.0.9.Final.jar:3.0.9.Final]
	at org.jgroups.protocols.BARRIER.up(BARRIER.java:126) [jgroups-3.0.9.Final.jar:3.0.9.Final]
	at org.jgroups.protocols.VERIFY_SUSPECT.up(VERIFY_SUSPECT.java:143) [jgroups-3.0.9.Final.jar:3.0.9.Final]
	at org.jgroups.protocols.FD.up(FD.java:273) [jgroups-3.0.9.Final.jar:3.0.9.Final]
	at org.jgroups.protocols.FD_SOCK.up(FD_SOCK.java:288) [jgroups-3.0.9.Final.jar:3.0.9.Final]
	at org.jgroups.protocols.MERGE2.up(MERGE2.java:205) [jgroups-3.0.9.Final.jar:3.0.9.Final]
	at org.jgroups.protocols.Discovery.up(Discovery.java:359) [jgroups-3.0.9.Final.jar:3.0.9.Final]
	at org.jgroups.stack.Protocol.up(Protocol.java:363) [jgroups-3.0.9.Final.jar:3.0.9.Final]
	at org.jgroups.protocols.TP.passMessageUp(TP.java:1180) [jgroups-3.0.9.Final.jar:3.0.9.Final]
	at org.jgroups.protocols.TP$IncomingPacket.handleMyMessage(TP.java:1728) [jgroups-3.0.9.Final.jar:3.0.9.Final]
	at org.jgroups.protocols.TP$IncomingPacket.run(TP.java:1710) [jgroups-3.0.9.Final.jar:3.0.9.Final]
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [rt.jar:1.6.0_30]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [rt.jar:1.6.0_30]
	at java.lang.Thread.run(Thread.java:662) [rt.jar:1.6.0_30]