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From "Brian Topping (JIRA)" <>
Subject [jira] Created: (AMQ-2445) Repeating NPE on shutdown under Tomcat
Date Wed, 07 Oct 2009 19:39:52 GMT
Repeating NPE on shutdown under Tomcat

                 Key: AMQ-2445
             Project: ActiveMQ
          Issue Type: Bug
          Components: Message Store
    Affects Versions: 5.2.0
            Reporter: Brian Topping

When AMQ is embedded in Tomcat 6 with the vm: connector, the following exception is occasionally
produced in large quantity:

Exception in thread "Persistence Adaptor Task" java.lang.NullPointerException
	at org.apache.log4j.LogManager.getLogger(
	at org.apache.log4j.Logger.getLogger(
	at org.apache.commons.logging.impl.Log4JLogger.getLogger(
	at org.apache.commons.logging.impl.Log4JLogger.isDebugEnabled(
	at org.apache.activemq.thread.PooledTaskRunner.runTask(
	at org.apache.activemq.thread.PooledTaskRunner$
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(
	at java.util.concurrent.ThreadPoolExecutor$

It seems to happen more reliably when there are messages that have been transactionally rolled
back to the queue over the course of the execution.

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