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Date: Fri, 13 Apr 2007 16:27:26 -0700 (PDT)
From: lgestrin <lgestrin@markettools.com>
To: users@activemq.apache.org
Subject: Re: activemq throws exception on tomcat stop log4j related.
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References: <9987434.post@talk.nabble.com>


Apparently, i did not release the listener appropriately. I was stopping
connection insteadof closing. Once that was fixed, the problem went way.

lgestrin wrote:
> 
> Hello,
> i am experiencing same problem that was described in this thread
> http://www.nabble.com/active-mq-exceptions-%28when-tomcat-server-is-stopped%29-tf3367534s2354.html#a9369314
> 
> tomcat version 5.5.17
> activemq version 4.1.0
> 
> i am using activemq package to send/recieve messages in webapp - the
> broker is configured as separate service.
> 
> when tomcat stops, in   ~ 1 sec there is an exception in std.out 
> 
> 
> INFO: Stopping Coyote HTTP/1.1 on http-80
> Apr 13, 2007 2:54:04 PM org.apache.catalina.core.AprLifecycleListener
> lifecycleEvent
> INFO: Failed shutdown of Apache Portable Runtime
> Exception in thread "ActiveMQ Transport:
> tcp://MVQAWEB3623/10.9.30.32:61616" java.lang.NullPointerException
> 	at org.apache.log4j.LogManager.getLogger(LogManager.java:188)
> 	at org.apache.log4j.Logger.getLogger(Logger.java:104)
> 	at
> org.apache.commons.logging.impl.Log4JLogger.getLogger(Log4JLogger.java:283)
> 	at
> org.apache.commons.logging.impl.Log4JLogger.isDebugEnabled(Log4JLogger.java:293)
> 	at
> org.apache.activemq.transport.ResponseCorrelator.onCommand(ResponseCorrelator.java:85)
> 	at
> org.apache.activemq.transport.TransportFilter.onCommand(TransportFilter.java:65)
> 	at
> org.apache.activemq.transport.WireFormatNegotiator.onCommand(WireFormatNegotiator.java:133)
> 	at
> org.apache.activemq.transport.InactivityMonitor.onCommand(InactivityMonitor.java:122)
> 	at
> org.apache.activemq.transport.TransportSupport.doConsume(TransportSupport.java:84)
> 	at
> org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:137)
> 	at java.lang.Thread.run(Thread.java:595)
> Disconnected from server
> 
> I made sure to close all open connections/listeners on appication stop,
> but it had no effect.
> 
> I also copied log4j.properties from activemq distribution to
> WEB-INF/classes but it had no effect.
> 
> webapplication is using commons-logging that wraps log4j - i dont know if
> it can have anything to do with it.
> 
> 
> 
> 

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