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https://issues.apache.org/jira/browse/QPID-6684?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14663325#comment-14663325
]
ASF subversion and git services commented on QPID-6684:
-------------------------------------------------------
Commit 1694857 from [~k-wall] in branch 'java/trunk'
[ https://svn.apache.org/r1694857 ]
QPID-6684: [Java Broker] Ensure asynchronous state change exceptions are passed
back to caller
* Guarded case 1 - attainState returns a Future containing an exception
* Guarded case 2 - the recursive call to doAttainState returned a future
contain a non-RuntimeException
* Refactored to use Futures.allAsList (rather than ChildCounter)
* Added supporting unit test
> 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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