[picocontainer-scm] [jira] Resolved: (PICO-373) Logging about memory leaks and ThreadLocals when redeploying a picocontainer-using app on Tomcat 6.0

     [ http://jira.codehaus.org/browse/PICO-373?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Paul Hammant resolved PICO-373.
-------------------------------

       Resolution: Fixed
    Fix Version/s: 3.0
         Assignee: Paul Hammant

> Logging about memory leaks and ThreadLocals when redeploying a picocontainer-using app on Tomcat 6.0
> ----------------------------------------------------------------------------------------------------
>
>                 Key: PICO-373
>                 URL: http://jira.codehaus.org/browse/PICO-373
>             Project: PicoContainer
>          Issue Type: Bug
>          Components: PicoContainer (Java)
>    Affects Versions: 1.3
>         Environment: Linux (Fedora Core 12)
>            Reporter: David North
>            Assignee: Paul Hammant
>            Priority: Minor
>             Fix For: 3.0
>
>         Attachments: AbstractInjector.patch, DefaultPicoContainer.patch, threadLocalBugDemo.zip
>
>
> Deploy the attached sample application onto Apache Tomcat v6 (included are a pre-built WAR exported from eclipse, a context file for tomcat, and the eclipse project containing the source code).
> Now re-deploy by touching the war file.
> Observe the following line in the catalina.out log file:
> 14-Jul-2010 10:52:02 org.apache.catalina.loader.WebappClassLoader clearThreadLocalMap
> SEVERE: A web application created a ThreadLocal with key of type [org.picocontainer.defaults.ConstructorInjectionComponentAdapter$1] (value [org.picocontainer.defaults.ConstructorInjectionComponentAdapter$1@f91da9]) 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 there some destroy/dispose/shutdown call on picocontainer that I am omitting, or is this a bug?
> The following thread discusses the problem with Tomcat and ThreadLocals and makes a few suggestions for how to avoid it:
> http://echo.nextapp.com/site/node/6254
> I've marked this bug as minor since leaking Booleans isn't a serious memory leak, so it's really just the log spam that's upsetting.

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