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From "Hiram Chirino (JIRA)" <j...@apache.org>
Subject [jira] Created: (AMQ-2435) NullPointer Exception Occurs when using producer flow control
Date Thu, 01 Oct 2009 16:45:00 GMT
NullPointer Exception Occurs when using producer flow control
-------------------------------------------------------------

                 Key: AMQ-2435
                 URL: https://issues.apache.org/activemq/browse/AMQ-2435
             Project: ActiveMQ
          Issue Type: Bug
          Components: Broker
            Reporter: Hiram Chirino
            Assignee: Hiram Chirino
            Priority: Blocker
             Fix For: 5.3.0


Looks like there is a synchronization issue still with producer based flow control.  Here
is the stack trace of the problem:
{code}
Caused by: java.lang.NullPointerException
	at org.apache.activemq.broker.region.Queue.doMessageSend(Queue.java:533)
	at org.apache.activemq.broker.region.Queue$7.run(Queue.java:442)
	at org.apache.activemq.broker.region.Queue.iterate(Queue.java:1102)
	at org.apache.activemq.thread.DeterministicTaskRunner.runTask(DeterministicTaskRunner.java:84)
	at org.apache.activemq.thread.DeterministicTaskRunner$1.run(DeterministicTaskRunner.java:41)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:651)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:676)
	at java.lang.Thread.run(Thread.java:613)
{code}

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