NullPointerException at com.arjuna.ats.arjuna.StateManager.unpackHeader in EAP 6

Issue

2016-05-31 12:39:42,064 ERROR [stderr] (EJB default - 1) java.io.IOException: java.lang.NullPointerException
...     at com.arjuna.ats.arjuna.StateManager.unpackHeader(StateManager.java:732)
...     at com.arjuna.ats.internal.jta.transaction.arjunacore.subordinate.jca.SubordinateAtomicAction.<init>(SubordinateAtomicAction.java:82)
...     at com.arjuna.ats.internal.jta.transaction.arjunacore.jca.XATerminatorImple.doRecover(XATerminatorImple.java:393)
...     at org.jboss.as.ejb3.remote.EJBRemoteTransactionsRepository.getXidsToRecoverForParentNode(EJBRemoteTransactionsRepository.java:178)
...     at org.jboss.as.ejb3.remote.protocol.versiontwo.TransactionRecoverMessageHandler$TxRecoveryTask.run(TransactionRecoverMessageHandler.java:98)
...     at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
...     at java.util.concurrent.FutureTask.run(FutureTask.java:262)
...     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
...     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
...     at java.lang.Thread.run(Thread.java:745)
...     at org.jboss.threads.JBossThread.run(JBossThread.java:122)
... Caused by: java.lang.NullPointerException
...     at com.arjuna.ats.arjuna.StateManager.unpackHeader(StateManager.java:697)
...     ...