Notes/Domino 6 and 7 Forum : Domino 6 and MQSeries 5.3

I am running a Java Agent called from the browser.
This agent uses the mqseries api to send and receive data from a mainframe system.
This agent has been running fine on R5, but now we have upgraded our qa server to Domino 6 and the agent is no longer running.

It is writing out the following error:

java.lang.NoClassDefFoundError: javax/resource/spi/ConnectionRequestInfo
at com.ibm.mq.MQSESSION.getConnectionRequestInfo(MQSESSION.java:446)
at com.ibm.mq.MQQueueManager.obtainBaseMQQueueManager(MQQueueManager.java:674)
at com.ibm.mq.MQQueueManager.construct(MQQueueManager.java:620)
at com.ibm.mq.MQQueueManager.<init>(MQQueueManager.java:393)
at LocationEBookingMQ.getQManager(LocationEBookingMQ.java:171)
at LocationEBookingMQ.NotesMain(LocationEBookingMQ.java:60)
at lotus.domino.AgentBase.runNotes(Unknown Source)
at lotus.domino.NotesThread.run(NotesThread.java:208)

Originally I had a similar problem where the MQSessionServer could not be found.
But solved that by putting the com.ibm.mq.jar and com.ibm.mqbind.jar and connector.jar in the domino java directory and added them to the JavaUserClasses parameter in the notes.ini.

However we are still getting the error mentioned above. I have checked that this class does in fact exist in the connector.jar.

I have also included all these jar fields including the com.ibm.mq.iiop.jar file into my Domino agent.

Any suggestions would be greatly appreciated.