The org.jboss.test.jbossmq.test.UnackedUnitTestCase testUnackedDurableTopic test fails when the IBM JDK is used.

Error from the test report:

The durable subscription is already in use. DurableSubscription[clientId=DurableSubscriberExample name=test selector=null]

javax.jms.IllegalStateException: The durable subscription is already in use. DurableSubscription[clientId=DurableSubscriberExample name=test selector=null]
at org.jboss.mq.server.JMSTopic.addSubscriber(JMSTopic.java:92)
at org.jboss.mq.server.ClientConsumer.addSubscription(ClientConsumer.java:142)
at org.jboss.mq.server.JMSDestinationManager.subscribe(JMSDestinationManager.java:541)
at org.jboss.mq.server.JMSServerInterceptorSupport.subscribe(JMSServerInterceptorSupport.java:311)
at org.jboss.mq.security.ServerSecurityInterceptor.subscribe(ServerSecurityInterceptor.java:157)
at org.jboss.mq.server.TracingInterceptor.subscribe(TracingInterceptor.java:779)
at org.jboss.mq.server.JMSServerInvoker.subscribe(JMSServerInvoker.java(Inlined Compiled Code))
at org.jboss.mq.il.uil2.ServerSocketManagerHandler.handleMsg(ServerSocketManagerHandler.java(Compiled Code))
at org.jboss.mq.il.uil2.SocketManager$ReadTask.handleMsg(SocketManager.java(Compiled Code))
at org.jboss.mq.il.uil2.msgs.BaseMsg.run(BaseMsg.java(Compiled Code))
at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java(Compiled Code))
at java.lang.Thread.run(Thread.java(Compiled Code))