[jira] [Commented] (PIVOT-861) Memory leak: Window icon ImageListenerList retains reference to closed windows, preventing garbage collection

["Łukasz Hanusiak (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PIVOT-861?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13551957#comment-13551957 ] 

Łukasz Hanusiak commented on PIVOT-861:
---------------------------------------

I checked against code from svn and I am still experiencing problems with accumulation of "org.apache.pivot.util.ListenerList$Node". 
In my application I am using CardPane (cards are dynamically removed and added when needed) to switch between views and memory is accumulated in one instance of PushButton's icon. If I remove icon form problematic button memory accumulates in another button or ImageView instance. Is there any fix or workaround for this problem that I can use before new version of pivot will be released?
                
> 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
>             Fix For: 2.0.3
>
>         Attachments: leaktest.zip, Pivot861.launch
>
>
> 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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