[ http://mc4j.org/jira/browse/STS-279?page=all ]
Tim Fennell resolved STS-279.
-----------------------------
Resolution: Fixed
Fixed using the WeakHashMap (and value wrapped in a weak reference) solution.
> Memory leak in DispatcherHelper
> -------------------------------
>
> Key: STS-279
> URL: http://mc4j.org/jira/browse/STS-279
> Project: Stripes
> Issue Type: Bug
> Reporter: Jay Paulsen
> Assigned To: Tim Fennell
> Fix For: Release 1.4.2
>
>
> The private static Map customValidations in DispatcherHelper is never
> cleared. Since the key to the map entries are Class objects, when a stripes
> web application is reloaded, this causes the web application classloader to
> be pinned in memory and it and all the classes it loaded are never garbage
> collected.
> I found this with version 1.4 of stripes and tomcat 5.5.17. The
> DispatcherHelper code in 1.4.1 looks the same so I imagine the same problem
> will happen with this version as well.
> As a temporary work around, I placed the following code in the
> contextDestroyed method of a ContextListener class for my web application:
> Field f = DispatcherHelper.class.getDeclaredField("customValidations");
> f.setAccessible(true);
> Map<Class, Method[]> customValidations = (Map<Class, Method[]>)
> f.get(DispatcherHelper.class);
> customValidations.clear();
> It would be nice if stripes exposed a clear method for this field on the
> DispatcherHelper class so a web app doesn't have to resort this hacked
> reflection work-around, or better yet, if Stripes had a way to clean it up
> itself.
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