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From "Claus Ibsen (JIRA)" <>
Subject [jira] [Commented] (AMQ-4008) Tomcat WARN on shutdown about ThreadLocal not cleared from log4j
Date Fri, 31 Aug 2012 11:02:07 GMT


Claus Ibsen commented on AMQ-4008:

Thanks Gary

Yeah seems Claudio is on top of this.

There is another issue though with restarting an app in Tomcat, is that the JMX connector
seems to not close down properly, causing port to be use on reload.

2012-08-31 13:05:24,461 [JMX connector  ] WARN  ManagementContext              - Failed to
start jmx connector: Cannot bind to URL [rmi://localhost:1099/jmxrmi]: javax.naming.ServiceUnavailableException
[Root exception is java.rmi.ConnectException: Connection refused to host: localhost; nested
exception is: Connection refused]
> Tomcat WARN on shutdown about ThreadLocal not cleared from log4j
> ----------------------------------------------------------------
>                 Key: AMQ-4008
>                 URL:
>             Project: ActiveMQ
>          Issue Type: Improvement
>          Components: Broker
>    Affects Versions: 5.6.0
>            Reporter: Claus Ibsen
>            Assignee: Claus Ibsen
>            Priority: Minor
>             Fix For: 5.7.0
> SEVERE: The web application [/camel-example-activemq-tomcat] created a ThreadLocal with
key of type [org.apache.log4j.helpers.ThreadLocalMap] (value [org.apache.log4j.helpers.ThreadLocalMap@1eb0cd0])
and a value of type [java.util.Hashtable] (value [{}]) but failed
to remove it when the web application was stopped. Threads are going to be renewed over time
to try and avoid a probable memory leak.
> I got a bit annoyed by this when I was working on a new example for Apache Camel with
an embedded AMQ broker. So I am digging into fixing this. Its in the start() method.

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