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https://issues.apache.org/jira/browse/KARAF-4686?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15452625#comment-15452625
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ASF GitHub Bot commented on KARAF-4686:
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GitHub user grgrzybek opened a pull request:
https://github.com/apache/karaf/pull/234
[KARAF-4686] Cleaning sun.rmi.transport.tcp.TCPEndpoint.localEndpoint…
…s cache
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/grgrzybek/karaf karaf-4.0.x-KARAF-4686
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/karaf/pull/234.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #234
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commit 77926dadbd8d279009c82240748f803ed6096e6a
Author: Grzegorz Grzybek <[email protected]>
Date: 2016-08-31T15:49:30Z
[KARAF-4686] Cleaning sun.rmi.transport.tcp.TCPEndpoint.localEndpoints cache
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> ClassLoader leak with RmiRegistryFactory and sun.rmi.transport.tcp.TCPEndpoint
> ------------------------------------------------------------------------------
>
> Key: KARAF-4686
> URL: https://issues.apache.org/jira/browse/KARAF-4686
> Project: Karaf
> Issue Type: Bug
> Affects Versions: 2.4.4, 4.0.6, 3.0.8
> Reporter: Grzegorz Grzybek
>
> Here's a leak I found in JVisualVM.
> {noformat}
> this - value: org.apache.felix.framework.BundleWiringImpl #3
> <- m_wiring - class:
> org.apache.felix.framework.BundleWiringImpl$BundleClassLoaderJava5, value:
> org.apache.felix.framework.BundleWiringImpl #3
> <- <classLoader> - class:
> org.apache.karaf.management.RmiRegistryFactory$KarafServerSocketFactory,
> value: org.apache.felix.framework.BundleWiringImpl$BundleClassLoaderJava5 #3
> <- <class> - class:
> org.apache.karaf.management.RmiRegistryFactory$KarafServerSocketFactory,
> value:
> org.apache.karaf.management.RmiRegistryFactory$KarafServerSocketFactory class
> RmiRegistryFactory$KarafServerSocketFactory
> <- ssf - class: sun.rmi.transport.tcp.TCPEndpoint, value:
> org.apache.karaf.management.RmiRegistryFactory$KarafServerSocketFactory #1
> <- key - class: java.util.HashMap$Entry, value:
> sun.rmi.transport.tcp.TCPEndpoint #9
> <- next - class: java.util.HashMap$Entry, value:
> java.util.HashMap$Entry #19809
> <- [0] - class: java.util.HashMap$Entry[], value:
> java.util.HashMap$Entry #28136
> <- table - class: java.util.HashMap, value:
> java.util.HashMap$Entry[] #4031
> <- localEndpoints (sticky class) - class:
> sun.rmi.transport.tcp.TCPEndpoint, value: java.util.HashMap #4065
> {noformat}
> sun.rmi.transport.tcp.TCPEndpoint has non-weak map that keeps references to
> socket factories:
> http://hg.openjdk.java.net/jdk8u/jdk8u/jdk/file/48c99b423839/src/share/classes/sun/rmi/transport/tcp/TCPEndpoint.java#l148
> This prevents cleaning up classloader of
> {{org.apache.karaf.management.server}} bundle.
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