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https://issues.apache.org/jira/browse/QPID-8047?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16285906#comment-16285906
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Keith Wall commented on QPID-8047:
----------------------------------
Looks reasonable to me. Okay for merging,.
> [Broker-J][AMQP 0-10] NPE on receiving session.detach for unknown session
> -------------------------------------------------------------------------
>
> Key: QPID-8047
> URL: https://issues.apache.org/jira/browse/QPID-8047
> Project: Qpid
> Issue Type: Bug
> Components: Broker-J
> Affects Versions: qpid-java-broker-7.0.0
> Reporter: Alex Rudyy
> Assignee: Keith Wall
> Fix For: qpid-java-broker-7.0.1
>
>
> The following NPE is reported on receiving of detach for unknown session
> {noformat}
> java.lang.NullPointerException
> at
> org.apache.qpid.server.protocol.v0_10.ServerConnectionDelegate.stopAllSubscriptions(ServerConnectionDelegate.java:377)
> at
> org.apache.qpid.server.protocol.v0_10.ServerConnectionDelegate.sessionDetach(ServerConnectionDelegate.java:366)
> at
> org.apache.qpid.server.protocol.v0_10.ServerConnectionDelegate.sessionDetach(ServerConnectionDelegate.java:52)
> at
> org.apache.qpid.server.protocol.v0_10.transport.SessionDetach.dispatch(SessionDetach.java:90)
> at
> org.apache.qpid.server.protocol.v0_10.ServerConnectionDelegate.control(ServerConnectionDelegate.java:97)
> at
> org.apache.qpid.server.protocol.v0_10.ServerConnectionDelegate.control(ServerConnectionDelegate.java:52)
> at
> org.apache.qpid.server.protocol.v0_10.transport.Method.delegate(Method.java:157)
> at
> org.apache.qpid.server.protocol.v0_10.ServerConnection.received(ServerConnection.java:279)
> at
> org.apache.qpid.server.protocol.v0_10.ServerAssembler.emit(ServerAssembler.java:178)
> at
> org.apache.qpid.server.protocol.v0_10.ServerAssembler.assemble(ServerAssembler.java:256)
> at
> org.apache.qpid.server.protocol.v0_10.ServerAssembler.frame(ServerAssembler.java:205)
> at
> org.apache.qpid.server.protocol.v0_10.ServerAssembler.received(ServerAssembler.java:135)
> at
> org.apache.qpid.server.protocol.v0_10.ServerAssembler.received(ServerAssembler.java:109)
> at
> org.apache.qpid.server.protocol.v0_10.ServerInputHandler.received(ServerInputHandler.java:184)
> at
> org.apache.qpid.server.protocol.v0_10.AMQPConnection_0_10Impl.lambda$received$1(AMQPConnection_0_10Impl.java:146)
> at java.security.AccessController.doPrivileged(Native Method)
> at
> org.apache.qpid.server.protocol.v0_10.AMQPConnection_0_10Impl.received(AMQPConnection_0_10Impl.java:141)
> at
> org.apache.qpid.server.transport.MultiVersionProtocolEngine.received(MultiVersionProtocolEngine.java:134)
> at
> org.apache.qpid.server.transport.NonBlockingConnection.processAmqpData(NonBlockingConnection.java:610)
> at
> org.apache.qpid.server.transport.NonBlockingConnectionPlainDelegate.processData(NonBlockingConnectionPlainDelegate.java:58)
> at
> org.apache.qpid.server.transport.NonBlockingConnection.doRead(NonBlockingConnection.java:496)
> at
> org.apache.qpid.server.transport.NonBlockingConnection.doWork(NonBlockingConnection.java:270)
> at
> org.apache.qpid.server.transport.NetworkConnectionScheduler.processConnection(NetworkConnectionScheduler.java:134)
> at
> org.apache.qpid.server.transport.SelectorThread$ConnectionProcessor.processConnection(SelectorThread.java:570)
> at
> org.apache.qpid.server.transport.SelectorThread$SelectionTask.performSelect(SelectorThread.java:361)
> at
> org.apache.qpid.server.transport.SelectorThread$SelectionTask.run(SelectorThread.java:97)
> at
> org.apache.qpid.server.transport.SelectorThread.run(SelectorThread.java:528)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at
> org.apache.qpid.server.bytebuffer.QpidByteBufferFactory.lambda$null$0(QpidByteBufferFactory.java:464)
> at java.lang.Thread.run(Thread.java:745)
> {noformat}
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