[jboss-jira] [JBoss JIRA] (JGRP-1655) ThreadLocal leaks discovered after enabling Tomcat 7 ThreadLocal detection listener

[Bela Ban (JIRA)]

    [ https://issues.jboss.org/browse/JGRP-1655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12789918#comment-12789918 ] 

Bela Ban commented on JGRP-1655:
--------------------------------

I'm tempted to remove ignore_thread altogether: since credit responses are marked as both OOB and INTERNAL, we will never block on a scenario as detailed in JGRP-465.
                
> ThreadLocal leaks discovered after enabling Tomcat 7 ThreadLocal detection listener
> -----------------------------------------------------------------------------------
>
>                 Key: JGRP-1655
>                 URL: https://issues.jboss.org/browse/JGRP-1655
>             Project: JGroups
>          Issue Type: Bug
>    Affects Versions: 3.3.2
>            Reporter: Manuel Dominguez Sarmiento
>            Assignee: Bela Ban
>             Fix For: 3.4
>
>
> After enabling Tomcat 7's org.apache.catalina.core.ThreadLocalLeakPreventionListener, we found this while undeploying our webapp:
> Jul 12, 2013 11:19:04 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
> SEVERE: The web application [/cms] created a ThreadLocal with key of type [org.jgroups.protocols.FlowControl$1] (value [org.jgroups.protocols.FlowControl$1 at 536c4bc7]) and a value of type [java.lang.Boolean] (value [false]) 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.
> Jul 12, 2013 11:19:04 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
> SEVERE: The web application [/cms] created a ThreadLocal with key of type [org.jgroups.protocols.FlowControl$1] (value [org.jgroups.protocols.FlowControl$1 at 536c4bc7]) and a value of type [java.lang.Boolean] (value [false]) 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.
> Jul 12, 2013 11:19:04 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
> SEVERE: The web application [/cms] created a ThreadLocal with key of type [org.jgroups.protocols.FlowControl$1] (value [org.jgroups.protocols.FlowControl$1 at 536c4bc7]) and a value of type [java.lang.Boolean] (value [false]) 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.
> Jul 12, 2013 11:19:04 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
> SEVERE: The web application [/cms] created a ThreadLocal with key of type [org.jgroups.protocols.FlowControl$1] (value [org.jgroups.protocols.FlowControl$1 at 536c4bc7]) and a value of type [java.lang.Boolean] (value [false]) 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.
> Jul 12, 2013 11:19:04 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
> SEVERE: The web application [/cms] created a ThreadLocal with key of type [org.jgroups.protocols.FlowControl$1] (value [org.jgroups.protocols.FlowControl$1 at 536c4bc7]) and a value of type [java.lang.Boolean] (value [false]) 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.
> Jul 12, 2013 11:19:04 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
> SEVERE: The web application [/cms] created a ThreadLocal with key of type [org.jgroups.protocols.FlowControl$1] (value [org.jgroups.protocols.FlowControl$1 at 536c4bc7]) and a value of type [java.lang.Boolean] (value [false]) 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.
> Jul 12, 2013 11:19:04 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
> SEVERE: The web application [/cms] created a ThreadLocal with key of type [org.jgroups.protocols.FlowControl$1] (value [org.jgroups.protocols.FlowControl$1 at 536c4bc7]) and a value of type [java.lang.Boolean] (value [false]) 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.
> Jul 12, 2013 11:19:04 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
> SEVERE: The web application [/cms] created a ThreadLocal with key of type [org.jgroups.protocols.FlowControl$1] (value [org.jgroups.protocols.FlowControl$1 at 536c4bc7]) and a value of type [java.lang.Boolean] (value [false]) 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.
> Jul 12, 2013 11:19:04 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
> SEVERE: The web application [/cms] created a ThreadLocal with key of type [org.jgroups.protocols.FlowControl$1] (value [org.jgroups.protocols.FlowControl$1 at 536c4bc7]) and a value of type [java.lang.Boolean] (value [false]) 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.
> Jul 12, 2013 11:19:04 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
> SEVERE: The web application [/cms] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal at 6ae3209a]) and a value of type [org.jgroups.protocols.TP.ProtocolAdapter] (value [locks (21)]) 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.
> Jul 12, 2013 11:19:04 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
> SEVERE: The web application [/cms] created a ThreadLocal with key of type [org.jgroups.protocols.FlowControl$1] (value [org.jgroups.protocols.FlowControl$1 at 536c4bc7]) and a value of type [java.lang.Boolean] (value [false]) 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.
> Jul 12, 2013 11:19:04 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
> SEVERE: The web application [/cms] created a ThreadLocal with key of type [org.jgroups.protocols.FlowControl$1] (value [org.jgroups.protocols.FlowControl$1 at 536c4bc7]) and a value of type [java.lang.Boolean] (value [false]) 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.
> Jul 12, 2013 11:19:04 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
> SEVERE: The web application [/cms] created a ThreadLocal with key of type [org.jgroups.protocols.FlowControl$1] (value [org.jgroups.protocols.FlowControl$1 at 536c4bc7]) and a value of type [java.lang.Boolean] (value [false]) 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.
> Jul 12, 2013 11:19:04 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
> SEVERE: The web application [/cms] created a ThreadLocal with key of type [org.jgroups.protocols.FlowControl$1] (value [org.jgroups.protocols.FlowControl$1 at 536c4bc7]) and a value of type [java.lang.Boolean] (value [false]) 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.
> Jul 12, 2013 11:19:04 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks

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