RAD, WAS 6 Test Env and J2EE security: getting rid of “No received or invocation credential exist on the thread”

Recently I started a new J2EE project that required j2ee security. Unfortunately Rational app. Developer 6 seemed to have some problems running a WAS Test Environment in this way, at least with the default setup. I encountered 2 problems:
  1. RAD wasn't able to connect to the server at all, throwing some security exceptions.
    The solution (or rather work-around) was to switch the "Server connection type.." in the server's configuration in RAD from RMI to SOAP. It seems that RMI doesn§t support authetification.
  2. After that, everything seemed to be ok, but an error was logged every few seconds with the cause "No received or invocation credential exist on the thread". The stack trace pointed to a MBean (a part of JMX) being contacted via RMI.
    Work-around: Disable an RMIConnector for JMX in WAS Console: log in, go to
    Application servers > server1 > Administration  > Administration Services > JMX connectors
    And delete the RMIConnector - make first sure that you don't need it.
BTW, to enable the security, I enabled it first on the server via WAS admin console and then I created a new server configuration in RAD and set it to use security.

Stack trace for issue 2:
com.ibm.ws.security.role.RoleBasedAuthorizerImpl.checkAccess(RoleBasedAuthorizerImpl.java(Compiled Code)) at com.ibm.ws.management.AdminServiceImpl.preInvoke(AdminServiceImpl.java:1696) at com.ibm.ws.management.AdminServiceImpl.preInvoke(AdminServiceImpl.java:1603) at com.ibm.ws.management.AdminServiceImpl.preInvoke(AdminServiceImpl.java:1533) at com.ibm.ws.management.AdminServiceImpl.preInvoke(AdminServiceImpl.java:1506) at com.ibm.ws.management.AdminServiceImpl.getAttribute(AdminServiceImpl.java:501) at com.ibm.ws.management.connector.AdminServiceDelegator.getAttribute(AdminServiceDelegator.java:99) at com.ibm.ws.management.connector.rmi.RMIConnectorService.getAttribute(RMIConnectorService.java:123) at com.ibm.ws.management.connector.rmi._RMIConnectorService_Tie.getAttribute(_RMIConnectorService_Tie.java:193) at com.ibm.ws.management.connector.rmi._RMIConnectorService_Tie._invoke(_RMIConnectorService_Tie.java:87) at com.ibm.CORBA.iiop.ServerDelegate.dispatchInvokeHandler(ServerDelegate.java:608) at com.ibm.CORBA.iiop.ServerDelegate.dispatch(ServerDelegate.java:461) at com.ibm.rmi.iiop.ORB.process(ORB.java:432) at com.ibm.CORBA.iiop.ORB.process(ORB.java:1728) at com.ibm.rmi.iiop.Connection.doWork(Connection.java:2229) at com.ibm.rmi.iiop.WorkUnitImpl.doWork(WorkUnitImpl.java:65) at com.ibm.ejs.oa.pool.PooledThread.run(ThreadPool.java:95) at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java(Compiled Code)) . 

Tags: security java methodology

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