"IllegalStateException: unread block data" by managing processes in JBoss BRMS 5.3.1

Issue

2014-03-26 16:15:40,056 ERROR [org.jbpm.task.service.hornetq.HornetQTaskClientConnector] (Thread-366) Client Exception with class class org.jbpm.task.service.hornetq.HornetQTaskClientConnector$1 using port 5153
java.lang.IllegalStateException: unread block data
at java.io.ObjectInputStream$BlockDataInputStream.setBlockDataMode(ObjectInputStream.java:2399)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1359)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1969)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1893)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1775)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1327)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:349)
at org.jbpm.task.service.hornetq.HornetQTaskClientConnector.readMessage(HornetQTaskClientConnector.java:160)
at org.jbpm.task.service.hornetq.HornetQTaskClientConnector.access$300(HornetQTaskClientConnector.java:45)
at org.jbpm.task.service.hornetq.HornetQTaskClientConnector$1.run(HornetQTaskClientConnector.java:122)
at java.lang.Thread.run(Thread.java:662)

2014-03-26 16:15:50,050 ERROR [com.temenos.services.proxyImpl.HumanTaskServiceProxyImpl] (WorkManager(2)-76) Exception occured whilst getting the task details for task - 25 from external BPM Engine
java.lang.RuntimeException: Timeout : unable to retrieve Task
at org.jbpm.task.service.responsehandlers.BlockingGetTaskResponseHandler.getTask(BlockingGetTaskResponseHandler.java:41)
at com.temenos.bpm.adaptor.workflow.ExtBPMWorkflowInterfaceImpl.buildTaskInstanceFromHandleReply(ExtBPMWorkflowInterfaceImpl.java:793)
at com.temenos.bpm.adaptor.workflow.ExtBPMWorkflowInterfaceImpl.getTaskData(ExtBPMWorkflowInterfaceImpl.java:291)
at com.temenos.services.proxyImpl.HumanTaskServiceProxyImpl.getTaskDetails(HumanTaskServiceProxyImpl.java:204)
...