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From "Lari Hotari (JIRA)" <j...@apache.org>
Subject [jira] Commented: (AMQ-1169) java.lang.ClassCastException: org.apache.activemq.command.BrokerId
Date Mon, 20 Aug 2007 07:41:22 GMT

    [ https://issues.apache.org/activemq/browse/AMQ-1169?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_39979
] 

Lari Hotari commented on AMQ-1169:
----------------------------------

This issue has probably nothing to do with backport-util-concurrent version...

I'm getting ClassCastExceptions in my test environment several times a week. The ActiveMQ
version is 4.1.1 running on Sun Java 1.5.0_11

It's hard to understand why this exception is possible:
Exception in thread "ActiveMQ Transport: tcp://localhost/127.0.0.1:61616" java.lang.ClassCastException:
org.apache.activemq.command.BrokerId
at org.apache.activemq.openwire.v2.MessageMarshaller.looseUnmarshal(MessageMarshaller.java:193)
at org.apache.activemq.openwire.v2.ActiveMQMessageMarshaller.looseUnmarshal(ActiveMQMessageMarshaller.java:101)
at org.apache.activemq.openwire.v2.ActiveMQStreamMessageMarshaller.looseUnmarshal(ActiveMQStreamMessageMarshaller.java:101)
at org.apache.activemq.openwire.OpenWireFormat.doUnmarshal(OpenWireFormat.java:349)
at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:273)
at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:156)
at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:136)
at java.lang.Thread.run(Thread.java:595)

It's expecting a ProducerId object, but it receives a BrokerId object.


> java.lang.ClassCastException: org.apache.activemq.command.BrokerId 
> -------------------------------------------------------------------
>
>                 Key: AMQ-1169
>                 URL: https://issues.apache.org/activemq/browse/AMQ-1169
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 4.1.0
>         Environment: winxp
>            Reporter: Vadim Pesochinskiy
>             Fix For: 4.1.1
>
>
> There were a lot of ": Channel was inactive for too long" messages before and after the
ClassCastException. I do not know if the system would recover from this by itself.
> java.lang.ClassCastException: org.apache.activemq.command.BrokerId
> at org.apache.activemq.openwire.v2.MessageDispatchMarshaller.tightUnmarshal(MessageDispatchMarshaller.java:70)
> at org.apache.activemq.openwire.OpenWireFormat.doUnmarshal(OpenWireFormat.java:347)
> at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:273)
> at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:156)
> at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:136)
> at java.lang.Thread.run(Thread.java:595)

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