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Bug 311605 - CalendarCombo memory leak
Summary: CalendarCombo memory leak
Status: CLOSED WONTFIX
Alias: None
Product: z_Archived
Classification: Eclipse Foundation
Component: Nebula (show other bugs)
Version: unspecified   Edit
Hardware: PC Windows XP
: P3 major with 1 vote (vote)
Target Milestone: ---   Edit
Assignee: Emil Crumhorn CLA
QA Contact:
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Reported: 2010-05-04 14:54 EDT by Eric Jain CLA
Modified: 2021-07-05 11:40 EDT (History)
3 users (show)

See Also:

Attachments
Patch is based on 11/14/2011 - nightly and works for e4 (137.61 KB, application/x-zip-compressed)
2011-11-15 09:41 EST, Andreas Spall CLA 		no flags Details
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Description Eric Jain CLA 2010-05-04 14:54:15 EDT 
Build Identifier: 20100218-1602

CalendarCombo instances appear to never be GC'd. Looks like there is a listener somewhere that never gets removed?

this$0 of org.eclipse.nebula.widgets.calendarcombo.CalendarCombo$15 (0x5556b612)
  eventListener of org.eclipse.swt.widgets.TypedListener (0x5556b55c)
    element of org.eclipse.swt.widgets.Listener[ ] (0x5556b550)
      listeners of org.eclipse.swt.widgets.EventTable (0x5556b54f)
        eventTable of org.eclipse.swt.widgets.Shell (declared by org.eclipse.swt.widgets.Widget) (0x5555ef51)
          shell of org.eclipse.ui.internal.WorkbenchWindow (declared by org.eclipse.jface.window.Window) (0x5555ee17)
            activatedWindow of org.eclipse.ui.internal.Workbench (0x555555af)
              static workbench of class org.eclipse.ui.internal.StartupThreading (0xfffff06a)

Reproducible: Always
Comment 1 Andreas Spall CLA 2011-11-15 09:41:41 EST 
Created attachment 207030 [details]
Patch is based on 11/14/2011 - nightly and works for e4
Comment 2 Andreas Spall CLA 2011-11-15 09:49:33 EST 
We had the same listener and GC problem with eclipse 4.1 and a CSSSWTEngineImpl related memory leak (see: https://bugs.eclipse.org/bugs/show_bug.cgi?id=318944). both where fixed with the attached and changed CalendarCombo. feel free to use the changes.
Comment 3 Sharon Snyder CLA 2012-02-29 09:08:47 EST 
I found the same thing.  Any listener you add needs to be removed.  My workaround was to add a dispose listener and when I receive that I remove any listeners I added.  This seems to allow it to be garbage collected.
Comment 4 Wim Jongman CLA 2013-06-21 16:13:23 EDT 
CalendarCombo will be archived june 30 2013.
Please update your software to use Nebula CDateTime or SWT DateTime.
Closing as WONTFIX.