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

[niranjan8712]

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. 

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