ToolAgent: NullPointerException in ExecutionAdministration.getAssignment(...)

Hi all!



I'm experiencing a problem within ToolAgent's invokeApplication() method when I try to call: 



getExecutionAdministration().getAssignment( SharkTransaction t, String processInstanceId, String assignmentId )



with Parameters which are passed in the invokeApplication() method.



I have extended the AbstractToolAgent class and overwritten the invokeApplication() method which goes something like this:



public void invokeApplication( ... )

{

  super.invokeApplication( t, handle, applicationName, procInstId, assId, parameters, appMode );

	 		

  status = APP_STATUS_RUNNING;



  if( appName==null || appName.trim().length() == 0 ) 

    readParamsFromExtAttributes( (String) parameters[ 0 ].the_value );

		 				

  WfAssignment workItem = connector.getExecAmin().getAssignment( t, procInstId, assId );   <<<<<<< This one throws NullPointerException!

	

  ...

 		

  status = APP_STATUS_FINISHED;

}



The Connector class wraps the Shark interface and ensures a proper connection to the WFMS. I'm using own external WfRequester class which implements the WfRequester interface for instantiating a process with ProcessMgrObj.create_process(). 



I'm using Shark pojo libs within a WebApplication deployed on JBoss, _not_ CORBA. With Shark 1.0, everything worked fine. What am I doing wrong now?



Thanx in advance,

Marc

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