|
| Re: [draw2d] LightWeightSystem dispose [message #95886 is a reply to message #95662] |
Mon, 29 September 2003 18:59   |
Eclipse User |
|
|
|
Originally posted by: none.us.ibm.com
Could you please post both the stack trace, and the patch? Thanks!
What do you mean by "movements are dispatched"? Do you move the shell after
it is closed?
"Alexey Harlamov" <aharlamov@mail.ru> wrote in message
news:bl8bea$qsa$1@eclipse.org...
> Hi!
> I have a problem with GEF viewer using LightweightSystem to show
> content. When user closes the shell with viewer's control a
> NullPointerException is raised. The source of problem is in the
> LightweightSystem class that does not remove listeners from disposed
> control. If there are other dispose listeners doing something with the
> control their movements are dispatched to draw2d and a GEF domain. But at
> that moment the control is disposed and any operations with it lead to
> crash.I have written a little patch to correct the issue and I can
> contribute it to the community. In any case I should like to be sure that
> this will be corrected in the next release.
>
> with best regards,
> Alexey Harlamov
> Enterra Inc.
>
>
|
|
|
|
| Re: [draw2d] LightWeightSystem dispose [message #96296 is a reply to message #96088] |
Tue, 30 September 2003 17:31 |
| Eclipse User |
|
|
|
Originally posted by: none.us.ibm.com
This could be several things. First, the focus lost event should come
before the dispose finished. Perhaps there is an inconsistency on motif
which causes this problem. Can you reproduce it on Win32??
A workaround to this problem is to do what we do in GraphicalEditor. When
the editor is closed, set the active tool to Null on the EditDomain. This
happens before the controls are disposed, I think.
"Alexey Harlamov" <aharlamov@mail.ru> wrote in message
news:blb6s2$j1s$1@eclipse.org...
>
> "Randy Hudson" <none@us.ibm.com> wrote in message
> news:bl9vau$g2r$1@eclipse.org...
> > Could you please post both the stack trace, and the patch? Thanks!
> > What do you mean by "movements are dispatched"? Do you move the shell
> after
> > it is closed?
> No, I don't. Underling UI library moves focus from the disposing
control
> to another.
> The atteached patch adds dispose listener to the control and removes
> listeners on a dispose event.
> Here is a stack trace as you have asked:
>
> Error in testVisual(com.enterra.gluon.visual.EditorTestCase)
> exception: java.lang.NullPointerException
> java.lang.NullPointerException
> at org.eclipse.gef.tools.AbstractTool.setViewer(AbstractTool.ja va:1196)
> at org.eclipse.gef.tools.AbstractTool.focusLost(AbstractTool.ja va:405)
> at org.eclipse.gef.EditDomain.focusLost(EditDomain.java:89)
> at
>
org.eclipse.gef.ui.parts.DomainEventDispatcher.dispatchFocus Lost(DomainEvent
> Dispatcher.java:217)
> at
>
org.eclipse.draw2d.LightweightSystem$EventHandler.focusLost( LightweightSyste
> m.java:379)
> at
org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListe ner.java:108)
> at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java :81)
> at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:840)
> at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:865)
> at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:845)
> at org.eclipse.swt.widgets.Control.WM_KILLFOCUS(Control.java:34 42)
> at org.eclipse.swt.widgets.Canvas.WM_KILLFOCUS(Canvas.java:209)
> at org.eclipse.swt.widgets.Control.windowProc(Control.java:2797 )
> at org.eclipse.swt.widgets.Display.windowProc(Display.java:2361 )
> at org.eclipse.swt.internal.win32.OS.SetParent(Native Method)
> at org.eclipse.swt.widgets.Control.setParent(Control.java:2754)
> at
com.enterra.ui.util.ControlUtilities.reparent(ControlUtiliti es.java:170)
> at
com.enterra.ui.controls.XComposite.onControlRemoved(XComposi te.java:277)
> at com.enterra.ui.controls.XComposite$1.removed(XComposite.java :437)
> at com.enterra.ui.util.BaseCollection.fireRemoved(BaseCollectio n.java:297)
> at com.enterra.ui.util.BaseCollection.remove(BaseCollection.jav a:65)
> at com.enterra.ui.util.BaseCollection.remove(BaseCollection.jav a:189)
> at
>
com.enterra.ui.controls.ControlCollection.remove(ControlColl ection.java:103)
> at com.enterra.ui.controls.XComposite$2.handleEvent(XComposite. java:465)
> at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java :81)
> at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:840)
> at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:865)
> at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:845)
> at org.eclipse.swt.widgets.Widget.releaseWidget(Widget.java:750 )
> at org.eclipse.swt.widgets.Control.releaseWidget(Control.java:1 407)
> at org.eclipse.swt.widgets.Scrollable.releaseWidget(Scrollable. java:188)
> at org.eclipse.swt.widgets.Composite.releaseWidget(Composite.ja va:368)
> at org.eclipse.swt.widgets.Canvas.releaseWidget(Canvas.java:118 )
> at org.eclipse.swt.widgets.Widget.releaseResources(Widget.java: 715)
> at org.eclipse.swt.widgets.Composite.releaseChildren(Composite. java:319)
> at org.eclipse.swt.widgets.Composite.releaseWidget(Composite.ja va:367)
> at org.eclipse.swt.widgets.Widget.releaseResources(Widget.java: 715)
> at org.eclipse.swt.widgets.Composite.releaseChildren(Composite. java:319)
> at org.eclipse.swt.widgets.Composite.releaseWidget(Composite.ja va:367)
> at org.eclipse.swt.widgets.Widget.releaseResources(Widget.java: 715)
> at org.eclipse.swt.widgets.Composite.releaseChildren(Composite. java:319)
> at org.eclipse.swt.widgets.Composite.releaseWidget(Composite.ja va:367)
> at org.eclipse.swt.widgets.Canvas.releaseWidget(Canvas.java:118 )
> at org.eclipse.swt.widgets.Decorations.releaseWidget(Decoration s.java:615)
> at org.eclipse.swt.widgets.Shell.releaseWidget(Shell.java:709)
> at org.eclipse.swt.widgets.Widget.dispose(Widget.java:372)
> at org.eclipse.swt.widgets.Shell.dispose(Shell.java:472)
> at org.eclipse.swt.widgets.Decorations.WM_CLOSE(Decorations.jav a:1279)
> at org.eclipse.swt.widgets.Shell.WM_CLOSE(Shell.java:1175)
> at org.eclipse.swt.widgets.Control.windowProc(Control.java:2771 )
> at org.eclipse.swt.widgets.Decorations.windowProc(Decorations.j ava:1229)
> at org.eclipse.swt.widgets.Display.windowProc(Display.java:2361 )
> at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method)
> at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:1298 )
> at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable .java:77)
> at org.eclipse.swt.widgets.Shell.callWindowProc(Shell.java:394)
> at org.eclipse.swt.widgets.Control.windowProc(Control.java:2845 )
> at org.eclipse.swt.widgets.Decorations.windowProc(Decorations.j ava:1229)
> at org.eclipse.swt.widgets.Display.windowProc(Display.java:2361 )
> at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method)
> at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:1298 )
> at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable .java:77)
> at org.eclipse.swt.widgets.Shell.callWindowProc(Shell.java:394)
> at org.eclipse.swt.widgets.Control.windowProc(Control.java:2845 )
> at org.eclipse.swt.widgets.Decorations.windowProc(Decorations.j ava:1229)
> at org.eclipse.swt.widgets.Display.windowProc(Display.java:2361 )
> at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
> at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:13 03)
> at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :1543)
> at com.enterra.gluon.GluonTestBase.dispatchEvents(GluonTestBase .java:69)
> at
> com.enterra.gluon.visual.VisualTestCase.testVisual(VisualTes tCase.java:28)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
>
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAcce ssorImpl.java:39
> )
> at
>
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMe thodAccessorImpl
> .java:25)
> at java.lang.reflect.Method.invoke(Method.java:324)
> at junit.framework.TestCase.runTest(TestCase.java:154)
> at junit.framework.TestCase.runBare(TestCase.java:127)
> at junit.framework.TestResult$1.protect(TestResult.java:106)
> at junit.framework.TestResult.runProtected(TestResult.java:124)
> at junit.framework.TestResult.run(TestResult.java:109)
> at junit.framework.TestCase.run(TestCase.java:118)
> at junit.framework.TestSuite.runTest(TestSuite.java:208)
> at junit.framework.TestSuite.run(TestSuite.java:203)
> at org.eclipse.test.EclipseTestRunner.run(EclipseTestRunner.jav a:319)
> at org.eclipse.test.EclipseTestRunner.run(EclipseTestRunner.jav a:198)
> at
> org.eclipse.test.CoreTestApplication.runTests(CoreTestApplic ation.java:34)
> at org.eclipse.test.CoreTestApplication.run(CoreTestApplication .java:30)
> at
>
org.eclipse.core.internal.boot.InternalBootLoader.run(Intern alBootLoader.jav
> a:858)
> at org.eclipse.core.boot.BootLoader.run(BootLoader.java:461)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
>
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAcce ssorImpl.java:39
> )
> at
>
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMe thodAccessorImpl
> .java:25)
> at java.lang.reflect.Method.invoke(Method.java:324)
> at org.eclipse.core.launcher.Main.basicRun(Main.java:291)
> at org.eclipse.core.launcher.Main.run(Main.java:747)
> at org.eclipse.core.launcher.Main.main(Main.java:583)
>
> > "Alexey Harlamov" <aharlamov@mail.ru> wrote in message
> > news:bl8bea$qsa$1@eclipse.org...
> > > Hi!
> > > I have a problem with GEF viewer using LightweightSystem to show
> > > content. When user closes the shell with viewer's control a
> > > NullPointerException is raised. The source of problem is in the
> > > LightweightSystem class that does not remove listeners from disposed
> > > control. If there are other dispose listeners doing something with the
> > > control their movements are dispatched to draw2d and a GEF domain. But
> at
> > > that moment the control is disposed and any operations with it lead to
> > > crash.I have written a little patch to correct the issue and I can
> > > contribute it to the community. In any case I should like to be sure
> that
> > > this will be corrected in the next release.
> > >
> > > with best regards,
> > > Alexey Harlamov
> > > Enterra Inc.
>
>
>
|
|
|
|
| Re: [draw2d] LightWeightSystem dispose [message #96846 is a reply to message #96739] |
Thu, 02 October 2003 14:01 |
| Eclipse User |
|
|
|
Originally posted by: none.us.ibm.com
I don't see why SWT would send out events on a Control which has already
been disposed. You contradicted yourself. You said the focus lost comes
first, but then you said the dispose listeners are called first. My
definition of "dispose" is when notification occurs, not when the method
returns.
The workaround is still the same. Set the active tool to NULL.
So, here's a question. If the TreeViewer is in the outline and has focus,
and I close the Outline View, causing both dispose and focus lost events,
does this problem still occur? Is it unique to disposing Shells?
"Alexey Harlamov" <aharlamov@mail.ru> wrote in message
news:blg67g$rni$1@eclipse.org...
> This problem arises on the Win32 platform. And yes, the focus lost event
> comes before
> the dispose finish. Let me explain the sequence of events that leads to
the
> exception.
> First, user closes a window with the viewer. The Viewer receives the
> widgetDisposed event
> and sets controls to null. After that other dispose listeners are called.
> One of them moves
> focus to another control. At that moment the focus lost event are
dispatched
> to the EditDomain and
> the viewer. But viewer's contol has been nulled already. And we have a
> NullPointerException.
>
> "Randy Hudson" <none@us.ibm.com> wrote in message
> news:blceha$slc$2@eclipse.org...
> > This could be several things. First, the focus lost event should come
> > before the dispose finished. Perhaps there is an inconsistency on motif
> > which causes this problem. Can you reproduce it on Win32??
> >
> > A workaround to this problem is to do what we do in GraphicalEditor.
When
> > the editor is closed, set the active tool to Null on the EditDomain.
This
> > happens before the controls are disposed, I think.
> >
> > "Alexey Harlamov" <aharlamov@mail.ru> wrote in message
> > news:blb6s2$j1s$1@eclipse.org...
> > >
> > > "Randy Hudson" <none@us.ibm.com> wrote in message
> > > news:bl9vau$g2r$1@eclipse.org...
> > > > Could you please post both the stack trace, and the patch? Thanks!
> > > > What do you mean by "movements are dispatched"? Do you move the
shell
> > > after
> > > > it is closed?
> > > No, I don't. Underling UI library moves focus from the disposing
> > control
> > > to another.
> > > The atteached patch adds dispose listener to the control and removes
> > > listeners on a dispose event.
> > > Here is a stack trace as you have asked:
> > >
> > > Error in testVisual(com.enterra.gluon.visual.EditorTestCase)
> > > exception: java.lang.NullPointerException
> > > java.lang.NullPointerException
> > > at
org.eclipse.gef.tools.AbstractTool.setViewer(AbstractTool.ja va:1196)
> > > at org.eclipse.gef.tools.AbstractTool.focusLost(AbstractTool.ja va:405)
> > > at org.eclipse.gef.EditDomain.focusLost(EditDomain.java:89)
> > > at
> > >
> >
>
org.eclipse.gef.ui.parts.DomainEventDispatcher.dispatchFocus Lost(DomainEvent
> > > Dispatcher.java:217)
> > > at
> > >
> >
>
org.eclipse.draw2d.LightweightSystem$EventHandler.focusLost( LightweightSyste
> > > m.java:379)
> > > at
> >
org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListe ner.java:108)
> > > at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java :81)
> > > at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:840)
> > > at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:865)
> > > at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:845)
> > > at org.eclipse.swt.widgets.Control.WM_KILLFOCUS(Control.java:34 42)
> > > at org.eclipse.swt.widgets.Canvas.WM_KILLFOCUS(Canvas.java:209)
> > > at org.eclipse.swt.widgets.Control.windowProc(Control.java:2797 )
> > > at org.eclipse.swt.widgets.Display.windowProc(Display.java:2361 )
> > > at org.eclipse.swt.internal.win32.OS.SetParent(Native Method)
> > > at org.eclipse.swt.widgets.Control.setParent(Control.java:2754)
> > > at
> > com.enterra.ui.util.ControlUtilities.reparent(ControlUtiliti es.java:170)
> > > at
> > com.enterra.ui.controls.XComposite.onControlRemoved(XComposi te.java:277)
> > > at com.enterra.ui.controls.XComposite$1.removed(XComposite.java :437)
> > > at
> com.enterra.ui.util.BaseCollection.fireRemoved(BaseCollectio n.java:297)
> > > at com.enterra.ui.util.BaseCollection.remove(BaseCollection.jav a:65)
> > > at com.enterra.ui.util.BaseCollection.remove(BaseCollection.jav a:189)
> > > at
> > >
> >
>
com.enterra.ui.controls.ControlCollection.remove(ControlColl ection.java:103)
> > > at
com.enterra.ui.controls.XComposite$2.handleEvent(XComposite. java:465)
> > > at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java :81)
> > > at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:840)
> > > at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:865)
> > > at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:845)
> > > at org.eclipse.swt.widgets.Widget.releaseWidget(Widget.java:750 )
> > > at org.eclipse.swt.widgets.Control.releaseWidget(Control.java:1 407)
> > > at
org.eclipse.swt.widgets.Scrollable.releaseWidget(Scrollable. java:188)
> > > at org.eclipse.swt.widgets.Composite.releaseWidget(Composite.ja va:368)
> > > at org.eclipse.swt.widgets.Canvas.releaseWidget(Canvas.java:118 )
> > > at org.eclipse.swt.widgets.Widget.releaseResources(Widget.java: 715)
> > > at
org.eclipse.swt.widgets.Composite.releaseChildren(Composite. java:319)
> > > at org.eclipse.swt.widgets.Composite.releaseWidget(Composite.ja va:367)
> > > at org.eclipse.swt.widgets.Widget.releaseResources(Widget.java: 715)
> > > at
org.eclipse.swt.widgets.Composite.releaseChildren(Composite. java:319)
> > > at org.eclipse.swt.widgets.Composite.releaseWidget(Composite.ja va:367)
> > > at org.eclipse.swt.widgets.Widget.releaseResources(Widget.java: 715)
> > > at
org.eclipse.swt.widgets.Composite.releaseChildren(Composite. java:319)
> > > at org.eclipse.swt.widgets.Composite.releaseWidget(Composite.ja va:367)
> > > at org.eclipse.swt.widgets.Canvas.releaseWidget(Canvas.java:118 )
> > > at
> org.eclipse.swt.widgets.Decorations.releaseWidget(Decoration s.java:615)
> > > at org.eclipse.swt.widgets.Shell.releaseWidget(Shell.java:709)
> > > at org.eclipse.swt.widgets.Widget.dispose(Widget.java:372)
> > > at org.eclipse.swt.widgets.Shell.dispose(Shell.java:472)
> > > at org.eclipse.swt.widgets.Decorations.WM_CLOSE(Decorations.jav a:1279)
> > > at org.eclipse.swt.widgets.Shell.WM_CLOSE(Shell.java:1175)
> > > at org.eclipse.swt.widgets.Control.windowProc(Control.java:2771 )
> > > at
org.eclipse.swt.widgets.Decorations.windowProc(Decorations.j ava:1229)
> > > at org.eclipse.swt.widgets.Display.windowProc(Display.java:2361 )
> > > at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method)
> > > at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:1298 )
> > > at
org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable .java:77)
> > > at org.eclipse.swt.widgets.Shell.callWindowProc(Shell.java:394)
> > > at org.eclipse.swt.widgets.Control.windowProc(Control.java:2845 )
> > > at
org.eclipse.swt.widgets.Decorations.windowProc(Decorations.j ava:1229)
> > > at org.eclipse.swt.widgets.Display.windowProc(Display.java:2361 )
> > > at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method)
> > > at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:1298 )
> > > at
org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable .java:77)
> > > at org.eclipse.swt.widgets.Shell.callWindowProc(Shell.java:394)
> > > at org.eclipse.swt.widgets.Control.windowProc(Control.java:2845 )
> > > at
org.eclipse.swt.widgets.Decorations.windowProc(Decorations.j ava:1229)
> > > at org.eclipse.swt.widgets.Display.windowProc(Display.java:2361 )
> > > at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
> > > at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:13 03)
> > > at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :1543)
> > > at
com.enterra.gluon.GluonTestBase.dispatchEvents(GluonTestBase .java:69)
> > > at
> > >
> com.enterra.gluon.visual.VisualTestCase.testVisual(VisualTes tCase.java:28)
> > > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> > > at
> > >
> >
>
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAcce ssorImpl.java:39
> > > )
> > > at
> > >
> >
>
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMe thodAccessorImpl
> > > .java:25)
> > > at java.lang.reflect.Method.invoke(Method.java:324)
> > > at junit.framework.TestCase.runTest(TestCase.java:154)
> > > at junit.framework.TestCase.runBare(TestCase.java:127)
> > > at junit.framework.TestResult$1.protect(TestResult.java:106)
> > > at junit.framework.TestResult.runProtected(TestResult.java:124)
> > > at junit.framework.TestResult.run(TestResult.java:109)
> > > at junit.framework.TestCase.run(TestCase.java:118)
> > > at junit.framework.TestSuite.runTest(TestSuite.java:208)
> > > at junit.framework.TestSuite.run(TestSuite.java:203)
> > > at org.eclipse.test.EclipseTestRunner.run(EclipseTestRunner.jav a:319)
> > > at org.eclipse.test.EclipseTestRunner.run(EclipseTestRunner.jav a:198)
> > > at
> > >
> org.eclipse.test.CoreTestApplication.runTests(CoreTestApplic ation.java:34)
> > > at
org.eclipse.test.CoreTestApplication.run(CoreTestApplication .java:30)
> > > at
> > >
> >
>
org.eclipse.core.internal.boot.InternalBootLoader.run(Intern alBootLoader.jav
> > > a:858)
> > > at org.eclipse.core.boot.BootLoader.run(BootLoader.java:461)
> > > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> > > at
> > >
> >
>
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAcce ssorImpl.java:39
> > > )
> > > at
> > >
> >
>
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMe thodAccessorImpl
> > > .java:25)
> > > at java.lang.reflect.Method.invoke(Method.java:324)
> > > at org.eclipse.core.launcher.Main.basicRun(Main.java:291)
> > > at org.eclipse.core.launcher.Main.run(Main.java:747)
> > > at org.eclipse.core.launcher.Main.main(Main.java:583)
> > >
> > > > "Alexey Harlamov" <aharlamov@mail.ru> wrote in message
> > > > news:bl8bea$qsa$1@eclipse.org...
> > > > > Hi!
> > > > > I have a problem with GEF viewer using LightweightSystem to
show
> > > > > content. When user closes the shell with viewer's control a
> > > > > NullPointerException is raised. The source of problem is in the
> > > > > LightweightSystem class that does not remove listeners from
disposed
> > > > > control. If there are other dispose listeners doing something with
> the
> > > > > control their movements are dispatched to draw2d and a GEF domain.
> But
> > > at
> > > > > that moment the control is disposed and any operations with it
lead
> to
> > > > > crash.I have written a little patch to correct the issue and I can
> > > > > contribute it to the community. In any case I should like to be
sure
> > > that
> > > > > this will be corrected in the next release.
> > > > >
> > > > > with best regards,
> > > > > Alexey Harlamov
> > > > > Enterra Inc.
> > >
> > >
> > >
> >
> >
>
>
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