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https://issues.apache.org/activemq/browse/AMQ-1077?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_37904
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Danielius Jurna commented on AMQ-1077:
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Is is possible for the provided patch to be applied for 4.2 version?
> Bug in STOMP transport unsubscribe
> ----------------------------------
>
> Key: AMQ-1077
> URL: https://issues.apache.org/activemq/browse/AMQ-1077
> Project: ActiveMQ
> Issue Type: Bug
> Components: Transport
> Affects Versions: 4.0.2
> Environment: linux 2.6, java 1.5
> Reporter: Danielius Jurna
> Attachments: patch.txt
>
>
> After several ubscribe/unsubscribe commands to activemq, subscribtions are
> not removed and there's error log in the broker:
> java.lang.IllegalStateException: Cannot remove a consumer that had not been
> registered: ID:das-32775-1164773607925-3:1881:-1:2
> at
> org.apache.activemq.broker.AbstractConnection.processRemoveConsumer(AbstractConnection.java:551)
> at org.apache.activemq.command.RemoveInfo.visit(RemoveInfo.java:64)
> at
> org.apache.activemq.broker.AbstractConnection.service(AbstractConnection.java:237)
> at
> org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:61)
> at
> org.apache.activemq.transport.ResponseCorrelator.onCommand(ResponseCorrelator.java:92)
> at
> org.apache.activemq.transport.TransportFilter.onCommand(TransportFilter.java:67)
> at
> org.apache.activemq.transport.InactivityMonitor.onCommand(InactivityMonitor.java:123)
> at
> org.apache.activemq.transport.stomp.StompTransportFilter.sendToActiveMQ(StompTransportFilter.java:70)
> at
> org.apache.activemq.transport.stomp.ProtocolConverter.sendToActiveMQ(ProtocolConverter.java:112)
> at
> org.apache.activemq.transport.stomp.ProtocolConverter.onStompUnsubscribe(ProtocolConverter.java:376)
> at
> org.apache.activemq.transport.stomp.ProtocolConverter.onStompCommad(ProtocolConverter.java:144)
> at
> org.apache.activemq.transport.stomp.StompTransportFilter.onCommand(StompTransportFilter.java:60)
> at
> org.apache.activemq.transport.TransportSupport.doConsume(TransportSupport.java:88)
> at
> org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:137)
> at java.lang.Thread.run(Thread.java:595)
> The problem is that there's internal map of subscriptions in
> ProtocolConverter class. On unsubscribe command, subscription is not removed
> from this internal map. Attached patch (against ProtocolConverter.java) fixes
> this bug
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