ThreadLocal memory leak in DefaultFileContent
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Key: VFS-309
URL: https://issues.apache.org/jira/browse/VFS-309
Project: Commons VFS
Issue Type: Bug
Affects Versions: 2.0
Environment: Tomcat servlet container
Reporter: jontro
When using commons vfs in a servlet container the ThreadLocal values stored
will not be release once the request finishes.
There needs to be a method to clear these values otherwise the data will leak
into the next request.
This was detected with tomcat 2.0.26. Upon undeploying an app that uses commons
vfs tomcat detects the leaks with a huge amount of the following messages:
A web application created a ThreadLocal with key of type
[java.lang.ThreadLocal] (value [java.lang.threadlo...@52fb241d]) and a value of
type [org.apache.commons.vfs.provider.FileContentThreadData] (value
[org.apache.commons.vfs.provider.filecontentthreadd...@6600167a]) but failed to
remove it when the web application was stopped. To prevent a memory leak, the
ThreadLocal has been forcibly removed.
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