[logback-dev] [JIRA] Resolved: (LBCLASSIC-183) Tomcat reports SEVERE ThreadLocal issues upon shutdown

Ceki Gulcu (JIRA) noreply-jira at qos.ch
Mon Oct 18 23:01:51 CEST 2010


     [ http://jira.qos.ch/browse/LBCLASSIC-183?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ceki Gulcu resolved LBCLASSIC-183.
----------------------------------

    Fix Version/s: 0.9.26
       Resolution: Fixed

Solved in http://github.com/ceki/logback/commit/13500debebe



> Tomcat reports SEVERE ThreadLocal issues upon shutdown
> ------------------------------------------------------
>
>                 Key: LBCLASSIC-183
>                 URL: http://jira.qos.ch/browse/LBCLASSIC-183
>             Project: logback-classic
>          Issue Type: Bug
>    Affects Versions: 0.9.18
>         Environment: Tomcat 6.0.24, JDK 6, Windows or Solaris
>            Reporter: Anthony Whitford
>            Assignee: Ceki Gulcu
>             Fix For: 0.9.26
>
>
> I have a webapp that uses Logback, deployed on a Tomcat instance.  Upon shutdown, Tomcat reports this and doesn't completely shut down:
> SEVERE: A web application created a ThreadLocal with key of type [org.slf4j.impl.CopyOnInheritThreadLocal] (value [org.slf4j.impl.CopyOnInheritThreadLocal at 1bb35
> b]) and a value of type [null] (value [null]) but failed to remove it when the web application was stopped. To prevent a memory leak, the ThreadLocal has been forcibly removed.
> Feb 3, 2010 10:49:22 PM org.apache.catalina.loader.WebappClassLoader clearThreadLocalMap
> SEVERE: A web application created a ThreadLocal with key of type [null] (value [ch.qos.logback.core.UnsynchronizedAppenderBase$1 at 10e2558]) and a value of type [java.lang.Boolean] (value [false]) but failed to remove it when the web application was stopped. To prevent a memory leak, the ThreadLocal has been forcibly removed.
> Is LogBack leaking resources?

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