Hi, I have setup a cluster partition in Jboss and trying to retrieve HAPartition object from ClusterPartition mbean. Below is my code: ArrayList<MBeanServer> list = MBeanServerFactory.findMBeanServer(null); for (MBeanServer server : list) { String onStr = "jboss:service=DefaultPartition"; ObjectName objectName = new ObjectName(onStr); Set mbeans = server.queryMBeans(objectName, null); Object partitionObj = server.invoke(theName, "getHAPartition", null, null); org.jboss.ha.framework.server.HAPartitionImpl partition = (org.jboss.ha.framework.server.HAPartitionImpl) partitionObj; //this line throwing ClassCastException } The last line in above code is throwing ClasscastException: Cannot Cast org.jboss.ha.framework.server.HAPartitionImpl cannot be cast to org.jboss.ha.framework.server.HAPartitionImpl I have same version of jbossha.jar in jboss lib and war's web-inf/lib folder. I am not sure why it is throwing classcast exception. Any help is much appreciated. Thanks in advance !!! Regards, Dharmveer -- View this message in context: http://www.nabble.com/ClasscastException%3A-Cannot-Cast-org.jboss.ha.fram... Sent from the JBoss - Dev mailing list archive at Nabble.com.