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https://issues.apache.org/jira/browse/PIVOT-861?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13423041#comment-13423041
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Sandro Martini commented on PIVOT-861:
--------------------------------------
>From analysis with MAT (after a Test Run of Pivot861.java), some info:
One instance of "org.apache.pivot.wtk.media.Picture" loaded by
"sun.misc.Launcher$AppClassLoader @ 0x27ee08d8" occupies 16.575.496 (75,66%)
bytes. The memory is accumulated in one instance of
"org.apache.pivot.util.ListenerList$Node" loaded by
"sun.misc.Launcher$AppClassLoader @ 0x27ee08d8".
Accumulated Objects by Class: org.apache.pivot.util.ListenerList$Node ,
org.apache.pivot.wtk.skin.ImageViewSkin$1
Retained Heap: org.apache.pivot.wtk.media.Picture (16.575.496) , most of is
inside its imageListeners (instance of
org.apache.pivot.wtk.media.Image$ImageListenerList)
> Memory leak: Window icon ImageListenerList retains reference to closed
> windows, preventing garbage collection
> -------------------------------------------------------------------------------------------------------------
>
> Key: PIVOT-861
> URL: https://issues.apache.org/jira/browse/PIVOT-861
> Project: Pivot
> Issue Type: Bug
> Components: wtk, wtk-media
> Affects Versions: 2.0.2
> Environment: Windows XP, Java 1.7.0_05
> Reporter: David Keen
> Assignee: Sandro Martini
> Priority: Minor
> Fix For: 2.0.3
>
> Attachments: Pivot861.launch, leaktest.zip
>
>
> When a window or dialog is opened which has an icon, after it is closed it
> cannot be garbage collected because a reference is retained to it through the
> icon. Removing the icon resolves the issue.
> As far as I've investigated, the issue appears to the in the
> ImageListenerList which each Image contains. I've done a heapdump of my
> application and used the IBM HeapAnalyzer which shows this list containing a
> reference to the window/dialog through the ImageViewSkin, but I don't know
> the Pivot internals well enough to see where or how it should be released.
> I'll attach a simple test application to show the issue.
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