ARJUNA016051: thread is already associated with a transaction! in EAP 6 : Transactions are not active

Issue

• Problem, that in logs there appear exceptions

java.lang.IllegalStateException: BaseTransaction.checkTransactionState - ARJUNA016051: thread is already associated with a transaction 

and then Error during transaction management of transaction id

org.jboss.ejb.client.XidTransactionID@35fded6e: 
java.lang.IllegalStateException: BaseTransaction.checkTransactionState - ARJUNA016051: thread is already associated with a transaction!. 

• A long running (user transaction managed) transaction times out and subsequent access to the transaction results in an exception

 java.sql.SQLException: javax.resource.ResourceException: IJ000460: Error checking for a transaction
        at org.jboss.jca.adapters.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:147)
        ...
Caused by: javax.resource.ResourceException: IJ000460: Error checking for a transaction
        at org.jboss.jca.core.connectionmanager.tx.TxConnectionManagerImpl.getManagedConnection(TxConnectionManagerImpl.java:362)
        at org.jboss.jca.core.connectionmanager.AbstractConnectionManager.allocateConnection(AbstractConnectionManager.java:464)
        at org.jboss.jca.adapters.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:139)
        ...
Caused by: javax.resource.ResourceException: IJ000459: Transaction is not active: tx=TransactionImple < ... status: ActionStatus.ABORTING >
        at org.jboss.jca.core.connectionmanager.tx.TxConnectionManagerImpl.getManagedConnection(TxConnectionManagerImpl.java:352)
        ... 

• Subsequently, an attempt to start a new transaction fails with another exception

javax.transaction.NotSupportedException: BaseTransaction.checkTransactionState - ARJUNA016051: thread is already associated with a transaction!
        at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.begin(BaseTransaction.java:72)
        at com.arjuna.ats.jbossatx.BaseTransactionManagerDelegate.begin(BaseTransactionManagerDelegate.java:65)
        at org.jboss.tm.usertx.client.ServerVMClientUserTransaction.begin(ServerVMClientUserTransaction.java:142)
        ...
Caused by: java.lang.IllegalStateException: BaseTransaction.checkTransactionState - ARJUNA016051: thread is already associated with a transaction!
        at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.checkTransactionState(BaseTransaction.java:266)
        at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.begin(BaseTransaction.java:68)
        ...