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https://issues.apache.org/activemq/browse/AMQ-2480?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=56397#action_56397
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Adam Walczak commented on AMQ-2480:
-----------------------------------
Thats another issue with ActiveMQ I have that sometimes text messages loose
their body when going between remote jms clients and the local php process
(besides memory leaks and other issues). I'm switching to nio transports today.
May be in some bizarre way this will help.
> Stomp Transport Dispatcher Fails on NPE
> ---------------------------------------
>
> Key: AMQ-2480
> URL: https://issues.apache.org/activemq/browse/AMQ-2480
> Project: ActiveMQ
> Issue Type: Bug
> Components: Transport
> Affects Versions: 5.3.0, 5.4.0
> Environment: Windows XP, JRE6
> Reporter: Ben
>
> We have been using ActiveMQ 5.2 on Windows for about 6months with a
> relatively low message throughput (a maximum usage 1 message every 4 seconds,
> nothing crazy) and it was working perfectly. We have several clients that
> connect through either an OpenWire or Stomp connection and communicate
> through Queues.
> Several days ago I started testing higher throughput (several
> messages/second) messaging by publishing to a Queue from an OpenWire
> connection and consuming the message on a Stomp connection. At some point
> there is a failure in the Dispatcher for the Stomp connection and my client
> stops receiving messages. The OpenWire connection is unaffected and
> continues filling the Queue. I have since upgraded to ActiveMQ 5.3 because
> there were some issues fixed related to Stomp connection, but still see the
> same issue. The only exception is :
> Exception in thread "ActiveMQ Connection Dispatcher: /127.0.0.1:3047"
> java.lang.NullPointerException
> at
> org.apache.activemq.transport.stomp.LegacyFrameTranslator.convertMessage(LegacyFrameTranslator.java:69)
>
> at
> org.apache.activemq.transport.stomp.ProtocolConverter.convertMessage(ProtocolConverter.java:594)
>
> at
> org.apache.activemq.transport.stomp.StompSubscription.onMessageDispatch(StompSubscription.java:92)
>
> at
> org.apache.activemq.transport.stomp.ProtocolConverter.onActiveMQCommand(ProtocolConverter.java:576)
>
> at
> org.apache.activemq.transport.stomp.StompTransportFilter.oneway(StompTransportFilter.java:56)
>
> at
> org.apache.activemq.transport.MutexTransport.oneway(MutexTransport.java:40)
> at
> org.apache.activemq.broker.TransportConnection.dispatch(TransportConnection.java:1190)
>
> at
> org.apache.activemq.broker.TransportConnection.processDispatch(TransportConnection.java:779)
>
> at
> org.apache.activemq.broker.TransportConnection.iterate(TransportConnection.java:815)
>
> at
> org.apache.activemq.thread.DedicatedTaskRunner.runTask(DedicatedTaskRunner.java:98)
>
> at
> org.apache.activemq.thread.DedicatedTaskRunner$1.run(DedicatedTaskRunner.java:36)
>
> I thought I would also note that with the nice new "Connector" page on the
> admin interface it shows the connection to my Stomp client as connected, and
> similarly the "Queues" page lists the Stomp consumer on the Queue, but the
> pending messages just keeps growing.
> The client library we are using for the Stomp connection is from Codehaus
> (http://stomp.codehaus.org/C). Our OpenWire connection is utilizing Spring
> frameworks JMS library.
> I'm going to continue to look for a test case to reproduce my error.
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