[jira] Resolved: (FELIX-1170) MemoryLeak when stopping and restarting Felix

["Karl Pauls (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FELIX-1170?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Karl Pauls resolved FELIX-1170.
-------------------------------

    Resolution: Fixed

I commit this to trunk. Please close this issue if it works for you. Thanks.

> MemoryLeak when stopping and restarting Felix
> ---------------------------------------------
>
>                 Key: FELIX-1170
>                 URL: https://issues.apache.org/jira/browse/FELIX-1170
>             Project: Felix
>          Issue Type: Bug
>          Components: Framework
>    Affects Versions: felix-1.2.1

>         Environment: Atlassian JIRA
>            Reporter: Jed Wesley-Smith
>            Assignee: Karl Pauls
>             Fix For: felix-2.0.0
>
>         Attachments: BundleProtectionDomain.java.FELIX-1170.patch
>
>
> There is a memory leak caused by a strong reference from the BundleProtectionDomain to a bundle and Felix.
> The problem is that a URLClassLoader gets its AccessControlContext from the stack - AccessController.getContext() calls AccessController.getStackAccessControlContext() which is basically arbitrary at the time.
> In our case we have a ServletFilter plugin that is being loaded by Felix. When a JasperLoader (a URLClassLoader) is created to load a JSP it inherits the BundleProtectionDomain as part of its AccessControlContext. If we later shut down Felix, it cannot be GC'd due to this reference.
> For our purposes we have tested making the m_felix and m_bundle weak references and have verified that it does indeed fix the problem.

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