Fred Weers [http://community.jboss.org/people/frederikw] created the discussion "Re: JBoss JMS standalone GUI tool for beginners showing queues and messages" To view the discussion, visit: http://community.jboss.org/message/632214#632214 -------------------------------------------------------------- Hello Gaurav, the tool includes libraries from JBoss 5 (see the lib-directory). If you use JBoss 4, you should probably replace those libraries. But I don't know if the source code will then compile (JBoss 5 classes used in the tool may not exist in JBoss 4). The error appears to originate in ServerQueueMon.java on the line fireTableRowsUpdated(0, getRowCount()-1); You can replace that with fireTableDataChanged(); But that will probably not remove the cause of the error. Most of the data that the tool displays is retrieved using methods in JmsUtil.java Try calling these methods from a test program. E.g. if JmsUtil.getQueueNames(InitialContext) returns an empty list, you probably found the cause of the problems. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/632214#632214] Start a new discussion in JBoss Messaging at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]