[jira] [Created] (QPID-6684) Asynchronous state change exceptions not passed back to caller

["Keith Wall (JIRA)" <ji...@apache.org>]

Keith Wall created QPID-6684:
--------------------------------

             Summary: Asynchronous state change exceptions not passed back to caller
                 Key: QPID-6684
                 URL: https://issues.apache.org/jira/browse/QPID-6684
             Project: Qpid
          Issue Type: Bug
          Components: Java Broker
            Reporter: Keith Wall
            Assignee: Keith Wall
             Fix For: qpid-java-6.0


A defect in the following part of the ACO#doAttainState means that an asynchronous exception occurring in a state change method is lost and not propagated back via the future returned to the caller.

{code:java} 
       final SettableFuture<Void> returnVal = SettableFuture.create();
        final ChildCounter counter = new ChildCounter(new Runnable()
        {
            @Override
            public void run()
            {
                try
                {
### If future returned by attainState contains an exception, it is lost.  returnVal future completes normally regardless..
                    attainState().addListener(new Runnable()
                    {
                        @Override
                        public void run()
                        {
                            returnVal.set(null);
                        }
                    }, getTaskExecutor().getExecutor());
                }
                catch(RuntimeException e)
                {
                    try
                    {
                        exceptionHandler.handleException(e, AbstractConfiguredObject.this);
                        returnVal.set(null);
                    }
                    catch(Throwable t)
                    {
                        returnVal.setException(t);
                    }
                }
            }
        });
{code} 



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