We use the same marshaller instance both in StateTransferManagerImpl and in JdbcStringBasedCacheStore, but RiverMarshaller is not reentrant, so when JdbcStringBasedCacheStore starts unmarshalling its entry it invalidates the marshaller for StateTransferManagerImpl:

Incoming-2,Infinispan-Cluster,NodeB-1353@2229, prio=5, in group 'Thread Pools', status: 'runnable'
java.lang.Thread.State: RUNNABLE
at org.jboss.marshalling.AbstractUnmarshaller.start(AbstractUnmarshaller.java:91)
at org.jboss.marshalling.river.RiverUnmarshaller.start(RiverUnmarshaller.java:1181)
at org.infinispan.marshall.jboss.GenericJBossMarshaller.startObjectInput(GenericJBossMarshaller.java:189)
at org.infinispan.marshall.VersionAwareMarshaller.startObjectInput(VersionAwareMarshaller.java:162)
at org.infinispan.marshall.VersionAwareMarshaller.objectFromByteBuffer(VersionAwareMarshaller.java:119)
at org.infinispan.marshall.AbstractMarshaller.objectFromInputStream(AbstractMarshaller.java:112)
at org.infinispan.loaders.jdbc.JdbcUtil.unmarshall(JdbcUtil.java:88)
at org.infinispan.loaders.jdbc.stringbased.JdbcStringBasedCacheStore.readStoredEntry(JdbcStringBasedCacheStore.java:384)
at org.infinispan.loaders.jdbc.stringbased.JdbcStringBasedCacheStore.loadLockSafe(JdbcStringBasedCacheStore.java:316)
at org.infinispan.loaders.jdbc.stringbased.JdbcStringBasedCacheStore.loadLockSafe(JdbcStringBasedCacheStore.java:87)
at org.infinispan.loaders.LockSupportCacheStore.load(LockSupportCacheStore.java:130)
at org.infinispan.interceptors.CacheLoaderInterceptor.loadIfNeeded(CacheLoaderInterceptor.java:149)
at org.infinispan.interceptors.CacheLoaderInterceptor.visitPutKeyValueCommand(CacheLoaderInterceptor.java:80)
at org.infinispan.commands.write.PutKeyValueCommand.acceptVisitor(PutKeyValueCommand.java:77)
at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:119)
at org.infinispan.interceptors.base.CommandInterceptor.handleDefault(CommandInterceptor.java:133)
at org.infinispan.commands.AbstractVisitor.visitPutKeyValueCommand(AbstractVisitor.java:60)
at org.infinispan.commands.write.PutKeyValueCommand.acceptVisitor(PutKeyValueCommand.java:77)
at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:119)
at org.infinispan.interceptors.TxInterceptor.enlistWriteAndInvokeNext(TxInterceptor.java:214)
at org.infinispan.interceptors.TxInterceptor.visitPutKeyValueCommand(TxInterceptor.java:162)
at org.infinispan.commands.write.PutKeyValueCommand.acceptVisitor(PutKeyValueCommand.java:77)
at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:119)
at org.infinispan.interceptors.InvocationContextInterceptor.handleAll(InvocationContextInterceptor.java:104)
at org.infinispan.interceptors.InvocationContextInterceptor.handleDefault(InvocationContextInterceptor.java:64)
at org.infinispan.commands.AbstractVisitor.visitPutKeyValueCommand(AbstractVisitor.java:60)
at org.infinispan.commands.write.PutKeyValueCommand.acceptVisitor(PutKeyValueCommand.java:77)
at org.infinispan.interceptors.InterceptorChain.invoke(InterceptorChain.java:274)
at org.infinispan.CacheImpl.put(CacheImpl.java:513)
at org.infinispan.statetransfer.StateTransferManagerImpl.applyInMemoryState(StateTransferManagerImpl.java:308)
at org.infinispan.statetransfer.StateTransferManagerImpl.applyState(StateTransferManagerImpl.java:280)
at org.infinispan.remoting.InboundInvocationHandlerImpl.applyState(InboundInvocationHandlerImpl.java:230)
at org.infinispan.remoting.transport.jgroups.JGroupsTransport.setState(JGroupsTransport.java:615)
at org.jgroups.blocks.MessageDispatcher$ProtocolAdapter.handleUpEvent(MessageDispatcher.java:711)
at org.jgroups.blocks.MessageDispatcher$ProtocolAdapter.up(MessageDispatcher.java:771)
at org.jgroups.JChannel.up(JChannel.java:1441)
...