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https://issues.apache.org/jira/browse/SHIRO-159?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Les Hazlewood resolved SHIRO-159.
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Resolution: Fixed
Updated ThreadContext and ThreadState implementations to use remove() in all
cases. Everything should be good now (with the same caveat that
SecurityUtils.getSubject() must still be called downstream from some other
Shiro component that does the thread binding/cleanup). All tests, sample apps,
etc. pass.
> ThreadLocal is not cleared upon the unloading of the webapp and the SHiro
> Servlet
> ---------------------------------------------------------------------------------
>
> Key: SHIRO-159
> URL: https://issues.apache.org/jira/browse/SHIRO-159
> Project: Shiro
> Issue Type: Bug
> Components: Integration: JEE
> Affects Versions: 1.0.0
> Environment: Model Name: MacBook Pro
> Model Identifier: MacBookPro5,1
> Processor Name: Intel Core 2 Duo
> Processor Speed: 2.8 GHz
> Number Of Processors: 1
> Total Number Of Cores: 2
> L2 Cache: 6 MB
> Memory: 4 GB
> Bus Speed: 1.07 GHz
> System Version: Mac OS X 10.6.3 (10D573)
> Kernel Version: Darwin 10.3.0
>
> Reporter: david e. berry
> Assignee: Les Hazlewood
> Fix For: 1.0.0
>
>
> Tomcat 6.0.26 reports a severe error when unloading a web app that uses
> org.apache.shiro.web.servlet.IniShiroFilter
> SEVERE: A web application created a ThreadLocal with key of type [null]
> (value [org.apache.shiro.util.threadcontex...@c0c66a]) and a value of type
> [java.util.HashMap] (value [{}]) but failed to remove it when the web
> application was stopped. To prevent a memory leak, the ThreadLocal has been
> forcibly removed.
> May 13, 2010 9:29:51 PM org.apache.catalina.loader.WebappClassLoader
> clearThreadLocalMap
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