Keith Wall created QPID-6672:
--------------------------------
Summary: Message dispatching after dispatcher close can cause
thread to terminate with IllegalStateException
Key: QPID-6672
URL: https://issues.apache.org/jira/browse/QPID-6672
Project: Qpid
Issue Type: Bug
Components: Java Client
Reporter: Keith Wall
There is a race between the dispatcher thread and another thread closing a
session. In the unlucky case, the dispatcher thread can die with an ISE as
below.
The issue appears to be that the Dispatcher#close method does not await the
shutdown for the dispatcher before returning, so the Dispatcher may run on for
another iteration whilst the dispatcher reference has been nulled.
This appears to be a longstanding issue and is showing up now owing to
r1693225, which makes uncaught exceptions fail the test.
{noformat}
2015-07-29 18:16:37,498 ERROR [Dispatcher-4-Conn-32]
o.a.q.t.LoggingUncaughtExceptionHandler Uncaught exception in thread
"Dispatcher-4-Conn-32"
java.lang.IllegalStateException: dispatcher is not started
at org.apache.qpid.client.AMQSession.dispatch(AMQSession.java:3267)
~[qpid-client-6.0.0-SNAPSHOT.jar:na]
at
org.apache.qpid.client.message.UnprocessedMessage.dispatch(UnprocessedMessage.java:54)
~[qpid-client-6.0.0-SNAPSHOT.jar:na]
at
org.apache.qpid.client.AMQSession$Dispatcher.run(AMQSession.java:3408)
~[qpid-client-6.0.0-SNAPSHOT.jar:na]
at java.lang.Thread.run(Thread.java:745) ~[na:1.7.0_67]
{noformat}
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