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https://issues.apache.org/jira/browse/WW-3751?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13202591#comment-13202591
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Maurizio Cucchiara commented on WW-3751:
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Another thing that I can confirm is that Tomcat reuses the same instances of
PageContextImpl and consequently PageContextImpl.
Glassfish doesn't.
> Memory leak using jsp tags on an app deployed on glassfish
> ----------------------------------------------------------
>
> Key: WW-3751
> URL: https://issues.apache.org/jira/browse/WW-3751
> Project: Struts 2
> Issue Type: Bug
> Components: Other
> Affects Versions: 2.2.1, 2.2.1.1, 2.2.3, 2.3.1, 2.3.1.1
> Environment: Windows 7 Professional (Microsoft Windows version 6.1
> Build 7601:Service Pack 1) 64 bit
> Processor: Intel Core i5 CPU 650 @ 3.20GHz 3.33 Ghz
> Ram: 6.00 GB
> GlassFish Server Open Source Edition 3.1.1 (build 12).
> It also happens in production environment with different hardware
> configuration running Linux
> Reporter: Marco Malavolta
> Attachments: screenshot-1 - VisualVM.jpg, testproject.zip
>
>
> I have some webapps based on Struts 2 framework.
> I use JSP tags, even sometimes with nested Struts 2 tag (FreeMarker).
> Every time you call with a single jsp jsp tags JspWriterImp a new instance is
> created with more or less the contents of the tag (instead of reusing the
> same object stored in memory.
> This causes a loss of memory, because these objects are located in the old
> generation heap 'til the web application is restarted
> After a few days / weeks depending on the traffic that you need to restart
> because of irresponsiveness.
> I also created a Jira issue on GlassFish
> (http://java.net/jira/browse/GLASSFISH-18316), where I posted a screenshot
> and a sample application to reproduce the problem.
> Basically I'm not sure if it's a struts problem or a problem of glass fish.
> Perhaps the second hypothesis is more likely
> Feel free to close it if you feel that the problem is solely related to
> Glassfish
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