[jboss-user] [JBoss Tools (users)] - undeploying a JAR

Hi users, I developed a simple EJB3.0 entity based applicaition and deployed it. I changed the persistence.xml file, undeployed the earlier jar from the server view, deleted the earlier jar from the project navigator, made a new jar and deployed it again on the server. I restarted the server. But I see - ObjectName: jboss.j2ee:service=EJB3,module=employee_new.jar State: FAILED Reason: java.lang.RuntimeException: javax.management.InstanceAlreadyExistsException: persistence.units:unitName=EntityService already registered. --- MBEANS THAT ARE THE ROOT CAUSE OF THE PROBLEM --- ObjectName: jboss.j2ee:service=EJB3,module=employee_new.jar State: FAILED Reason: java.lang.RuntimeException: javax.management.InstanceAlreadyExistsException: persistence.units:unitName=EntityService already registered. I also see this in the log - You have not defined a jta-data-source for a JTA enabled persistence context named: EntityService The new persistence.xml contains the correction for the JTA. But I think the earlier JARS are still on the server. When I see the jboss.j2ee in the JMX-Console, i see all the three jars, namely: module=employee.jar,service=EJB3 module=employee_new.jar,service=EJB3 module=employee_test.jar,service=EJB3 module=hello.jar,service=EJB3 where as, the employee_new.jar is the latest. Why is the server caching the jars? How do I remove the jars and deploy only the employee_new.jar? My way of removing the jar is: 1. in the server view remove the jar from the server 2. in the project navigator, delete the jar 3. select the spurce files and build a new jar 4. right click on the new jar and click 'make deployable' 5. restart the server. Please help me in removing the irrelevant jars. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4211687#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...