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https://issues.apache.org/jira/browse/SLING-3753?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14056111#comment-14056111
]
Stefan Egli commented on SLING-3753:
------------------------------------
Steps to reproduce:
* have a structure as for example:
{code}
\-parent
|- child1
|\-grandchild1
\-child2
\-grandchild2
\-grandgrandchild
{code}
* move 'grandgrandchild' from grandchil2 to grandchild1 (using drag-n-drop)
* move it back
* notice that 'child1' collapsed and when trying to open it again, said
exception should occur
> Avoid 'Widget is disposed' errors
> ---------------------------------
>
> Key: SLING-3753
> URL: https://issues.apache.org/jira/browse/SLING-3753
> Project: Sling
> Issue Type: Bug
> Components: IDE
> Affects Versions: Sling Eclipse IDE 1.0.0
> Reporter: Stefan Egli
> Assignee: Stefan Egli
> Fix For: Sling Eclipse IDE 1.0.2
>
>
> In the Project Explorer, when fiddling around with the content browser by eg
> copy/pasting, drag-dropping, changing node types etc, it sometimes can occur,
> that when selecting a (jcr) node, an error box saying "Widget is disposed"
> shows up.
> Below is the full stacktrace for reference:
> {code}
> org.eclipse.swt.SWTException: Widget is disposed
> at org.eclipse.swt.SWT.error(SWT.java:4397)
> at org.eclipse.swt.SWT.error(SWT.java:4312)
> at org.eclipse.swt.SWT.error(SWT.java:4283)
> at org.eclipse.swt.widgets.Widget.error(Widget.java:783)
> at org.eclipse.swt.widgets.Widget.checkWidget(Widget.java:573)
> at org.eclipse.swt.widgets.Widget.getData(Widget.java:845)
> at
> org.eclipse.jface.viewers.AbstractTreeViewer.associate(AbstractTreeViewer.java:712)
> at
> org.eclipse.jface.viewers.AbstractTreeViewer.doUpdateItem(AbstractTreeViewer.java:1022)
> at
> org.eclipse.jface.viewers.StructuredViewer$UpdateItemSafeRunnable.run(StructuredViewer.java:485)
> at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
> at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:49)
> at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
> at
> org.eclipse.jface.viewers.StructuredViewer.updateItem(StructuredViewer.java:2167)
> at
> org.eclipse.jface.viewers.StructuredViewer.internalUpdate(StructuredViewer.java:2150)
> at
> org.eclipse.jface.viewers.StructuredViewer.update(StructuredViewer.java:2089)
> at org.eclipse.jface.viewers.ColumnViewer.update(ColumnViewer.java:561)
> at org.eclipse.ui.navigator.CommonViewer.update(CommonViewer.java:535)
> at
> org.eclipse.jface.viewers.StructuredViewer.update(StructuredViewer.java:2033)
> at
> org.eclipse.jface.viewers.StructuredViewer.handleLabelProviderChanged(StructuredViewer.java:1191)
> at
> org.eclipse.ui.navigator.CommonViewer.handleLabelProviderChanged(CommonViewer.java:235)
> at
> org.eclipse.jface.viewers.ContentViewer$1.labelProviderChanged(ContentViewer.java:97)
> at
> org.eclipse.jface.viewers.BaseLabelProvider$1.run(BaseLabelProvider.java:74)
> at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
> at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:49)
> at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
> at
> org.eclipse.jface.viewers.BaseLabelProvider.fireLabelProviderChanged(BaseLabelProvider.java:72)
> at
> org.eclipse.jface.viewers.DecoratingStyledCellLabelProvider$1.labelProviderChanged(DecoratingStyledCellLabelProvider.java:77)
> at
> org.eclipse.ui.internal.decorators.DecoratorManager$1.run(DecoratorManager.java:430)
> at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
> at
> org.eclipse.ui.internal.decorators.DecoratorManager.fireListener(DecoratorManager.java:428)
> at
> org.eclipse.ui.internal.decorators.DecorationScheduler$3.runInUIThread(DecorationScheduler.java:530)
> at org.eclipse.ui.progress.UIJob$1.run(UIJob.java:95)
> at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
> at
> org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)
> at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3976)
> at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3653)
> at
> org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1113)
> at
> org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
> at
> org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:997)
> at
> org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:140)
> at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:611)
> at
> org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
> at
> org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:567)
> at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
> at
> org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124)
> at
> org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
> at
> org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
> at
> org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
> at
> org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:354)
> at
> org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:181)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:636)
> at org.eclipse.equinox.launcher.Main.basicRun(Main.java:591)
> at org.eclipse.equinox.launcher.Main.run(Main.java:1450)
> at org.eclipse.equinox.launcher.Main.main(Main.java:1426)
> {code}
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