Problem starting Java EE agent WITH JBOSS 4.0.1 AS : "java.lang.ClassCircularityError" (4317866)

FATAL [com.quest.pas.agent.plugin.collector.jboss.JBossCollector startRecording 1295766886325] com.quest.pas.common.thread.PerformaSureThreadGroup - An unexpected exception occurred, shutting down application. You may want to contact Quest Software customer support if you see this error again: java.lang.ClassCircularityError: org/jboss/mq/il/uil2/SocketManager$WriteTask
java.lang.ClassCircularityError: org/jboss/mq/il/uil2/SocketManager$WriteTask
at org.jboss.mq.il.uil2.SocketManager.start(SocketManager.java:120)
at org.jboss.mq.il.uil2.UILServerIL.createConnection(UILServerIL.java:666)
at org.jboss.mq.il.uil2.UILServerIL.getSocketMgr(UILServerIL.java:532)
at org.jboss.mq.il.uil2.UILServerIL.authenticate(UILServerIL.java:334)
at org.jboss.mq.Connection.authenticate(Connection.java:1160)
at org.jboss.mq.Connection.<init>(Connection.java:255)
at org.jboss.mq.Connection.<init>(Connection.java:332)
at org.jboss.mq.SpyConnection.<init>(SpyConnection.java:66)
at org.jboss.mq.SpyConnectionFactory.createConnection(SpyConnectionFactory.java:87)
at org.jboss.mq.SpyConnectionFactory.createQueueConnection(SpyConnectionFactory.java:124)
at com.sitraka.pas.agent.plugin.periodic.jmx.JmsQueueHelper.calculateMetrics(JmsQueueHelper.java:83)
at com.quest.pas.agent.plugin.collector.jboss.JBossCollector$JMSQueueNode.updateJmsQueueMetrics(JBossCollector.java:881)
at com.quest.pas.agent.plugin.collector.jboss.JBossCollector$JMSQueueNode.getAttributeValue(JBossCollector.java:865)
at com.quest.pas.agent.plugin.collector.jmx.JmxTreeCollector$MBeanNode.createAttributes(JmxTreeCollector.java:1539)
at com.quest.pas.agent.plugin.collector.jmx.JmxTreeCollector$MBeanNode.populate(JmxTreeCollector.java:1471)
at com.quest.pas.agent.plugin.collector