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Plugin breaks watches in Eclipse 3.4 #1234

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scabug opened this issue Aug 17, 2008 · 3 comments
Closed

Plugin breaks watches in Eclipse 3.4 #1234

scabug opened this issue Aug 17, 2008 · 3 comments
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@milessabin
Milestone
2.7.2

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@scabug
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scabug commented Aug 17, 2008

Carsten Saager sent the following message to the mailing list and Sean asked him to file a bug. He was unable to do so due to trac problems. I have also seen the same problem so I am filing it for him.

Hi,

with the plugin installed the drag&drop of expressions to the watches doesn't work anymore, more severe: When adding with the context menu an error "'install watch expression model proxy' has encountered a problem" appears, in the log:
scala.tools.eclipse.debug.WatchExpressionDelegate cannot be cast to org.eclipse.debug.core.model.IWatchExpressionDelegate

Full stacktrace:

!ENTRY org.eclipse.debug.ui 4 2 2008-08-17 19:12:02.963
!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.debug.ui".
!STACK 0
java.lang.ClassCastException: scala.tools.eclipse.debug.WatchExpressionDelegate cannot be cast to org.eclipse.debug.core.model.IWatchExpressionDelegate
    at org.eclipse.debug.internal.core.ExpressionManager.newWatchExpressionDelegate(ExpressionManager.java:129)
    at org.eclipse.debug.internal.core.WatchExpression.evaluate(WatchExpression.java:80)
    at org.eclipse.debug.internal.core.WatchExpression.setExpressionContext(WatchExpression.java:118)
    at org.eclipse.debug.internal.ui.viewers.update.DefaultWatchExpressionModelProxy.contextActivated(DefaultWatchExpressionModelProxy.java:120)
    at org.eclipse.debug.internal.ui.viewers.update.DefaultWatchExpressionModelProxy.debugContextChanged(DefaultWatchExpressionModelProxy.java:131)
    at org.eclipse.debug.internal.ui.contexts.DebugWindowContextService$$1.run(DebugWindowContextService.java:169)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
    at org.eclipse.debug.internal.ui.contexts.DebugWindowContextService.notify(DebugWindowContextService.java:167)
    at org.eclipse.debug.internal.ui.contexts.DebugWindowContextService.notify(DebugWindowContextService.java:151)
    at org.eclipse.debug.internal.ui.contexts.DebugWindowContextService.debugContextChanged(DebugWindowContextService.java:316)
    at org.eclipse.debug.ui.contexts.AbstractDebugContextProvider$$1.run(AbstractDebugContextProvider.java:79)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
    at org.eclipse.debug.ui.contexts.AbstractDebugContextProvider.fire(AbstractDebugContextProvider.java:77)
    at org.eclipse.debug.internal.ui.views.launch.LaunchView$$ContextProvider.activate(LaunchView.java:218)
    at org.eclipse.debug.internal.ui.views.launch.LaunchView.selectionChanged(LaunchView.java:535)
    at org.eclipse.jface.viewers.Viewer$$2.run(Viewer.java:162)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
    at org.eclipse.core.runtime.Platform.run(Platform.java:880)
    at org.eclipse.ui.internal.JFaceUtil$$1.run(JFaceUtil.java:48)
    at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
    at org.eclipse.jface.viewers.Viewer.fireSelectionChanged(Viewer.java:160)
    at org.eclipse.jface.viewers.StructuredViewer.updateSelection(StructuredViewer.java:2062)
    at org.eclipse.jface.viewers.StructuredViewer.setSelection(StructuredViewer.java:1638)
    at org.eclipse.jface.viewers.TreeViewer.setSelection(TreeViewer.java:1104)
    at org.eclipse.debug.internal.ui.viewers.model.InternalTreeModelViewer.setSelection(InternalTreeModelViewer.java:1638)
    at org.eclipse.jface.viewers.Viewer.setSelection(Viewer.java:392)
    at org.eclipse.debug.internal.ui.viewers.model.TreeModelContentProvider.handleSelect(TreeModelContentProvider.java:302)
    at org.eclipse.debug.internal.ui.viewers.model.ModelContentProvider.updateNodes(ModelContentProvider.java:864)
    at org.eclipse.debug.internal.ui.viewers.model.ModelContentProvider.updateNodes(ModelContentProvider.java:884)
    at org.eclipse.debug.internal.ui.viewers.model.ModelContentProvider.updateNodes(ModelContentProvider.java:884)
    at org.eclipse.debug.internal.ui.viewers.model.ModelContentProvider.updateNodes(ModelContentProvider.java:884)
    at org.eclipse.debug.internal.ui.viewers.model.ModelContentProvider.updateNodes(ModelContentProvider.java:884)
    at org.eclipse.debug.internal.ui.viewers.model.ModelContentProvider$$9.runInUIThread(ModelContentProvider.java:833)
    at org.eclipse.ui.progress.UIJob$$1.run(UIJob.java:94)
    at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
    at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:133)
    at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3800)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3425)
    at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2382)
    at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2346)
    at org.eclipse.ui.internal.Workbench.access$$4(Workbench.java:2198)
    at org.eclipse.ui.internal.Workbench$$5.run(Workbench.java:493)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:488)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
    at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113)
    at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:193)
    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:382)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:549)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1236)

!ENTRY org.eclipse.debug.ui 4 120 2008-08-17 19:12:03.025
!MESSAGE Error logged from Debug UI:
!STACK 0
java.lang.ClassCastException: scala.tools.eclipse.debug.WatchExpressionDelegate cannot be cast to org.eclipse.debug.core.model.IWatchExpressionDelegate
    at org.eclipse.debug.internal.core.ExpressionManager.newWatchExpressionDelegate(ExpressionManager.java:129)
    at org.eclipse.debug.internal.core.WatchExpression.evaluate(WatchExpression.java:80)
    at org.eclipse.debug.internal.core.WatchExpression.setExpressionContext(WatchExpression.java:118)
    at org.eclipse.debug.internal.ui.viewers.update.DefaultWatchExpressionModelProxy.contextActivated(DefaultWatchExpressionModelProxy.java:120)
    at org.eclipse.debug.internal.ui.viewers.update.DefaultWatchExpressionModelProxy.debugContextChanged(DefaultWatchExpressionModelProxy.java:131)
    at org.eclipse.debug.internal.ui.contexts.DebugWindowContextService$$1.run(DebugWindowContextService.java:169)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
    at org.eclipse.debug.internal.ui.contexts.DebugWindowContextService.notify(DebugWindowContextService.java:167)
    at org.eclipse.debug.internal.ui.contexts.DebugWindowContextService.notify(DebugWindowContextService.java:151)
    at org.eclipse.debug.internal.ui.contexts.DebugWindowContextService.debugContextChanged(DebugWindowContextService.java:316)
    at org.eclipse.debug.ui.contexts.AbstractDebugContextProvider$$1.run(AbstractDebugContextProvider.java:79)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
    at org.eclipse.debug.ui.contexts.AbstractDebugContextProvider.fire(AbstractDebugContextProvider.java:77)
    at org.eclipse.debug.internal.ui.views.launch.LaunchView$$ContextProvider.activate(LaunchView.java:218)
    at org.eclipse.debug.internal.ui.views.launch.LaunchView.selectionChanged(LaunchView.java:535)
    at org.eclipse.jface.viewers.Viewer$$2.run(Viewer.java:162)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
    at org.eclipse.core.runtime.Platform.run(Platform.java:880)
    at org.eclipse.ui.internal.JFaceUtil$$1.run(JFaceUtil.java:48)
    at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
    at org.eclipse.jface.viewers.Viewer.fireSelectionChanged(Viewer.java:160)
    at org.eclipse.jface.viewers.StructuredViewer.updateSelection(StructuredViewer.java:2062)
    at org.eclipse.jface.viewers.StructuredViewer.setSelection(StructuredViewer.java:1638)
    at org.eclipse.jface.viewers.TreeViewer.setSelection(TreeViewer.java:1104)
    at org.eclipse.debug.internal.ui.viewers.model.InternalTreeModelViewer.setSelection(InternalTreeModelViewer.java:1638)
    at org.eclipse.jface.viewers.Viewer.setSelection(Viewer.java:392)
    at org.eclipse.debug.internal.ui.viewers.model.TreeModelContentProvider.handleSelect(TreeModelContentProvider.java:302)
    at org.eclipse.debug.internal.ui.viewers.model.ModelContentProvider.updateNodes(ModelContentProvider.java:864)
    at org.eclipse.debug.internal.ui.viewers.model.ModelContentProvider.updateNodes(ModelContentProvider.java:884)
    at org.eclipse.debug.internal.ui.viewers.model.ModelContentProvider.updateNodes(ModelContentProvider.java:884)
    at org.eclipse.debug.internal.ui.viewers.model.ModelContentProvider.updateNodes(ModelContentProvider.java:884)
    at org.eclipse.debug.internal.ui.viewers.model.ModelContentProvider.updateNodes(ModelContentProvider.java:884)
    at org.eclipse.debug.internal.ui.viewers.model.ModelContentProvider$$9.runInUIThread(ModelContentProvider.java:833)
    at org.eclipse.ui.progress.UIJob$$1.run(UIJob.java:94)
    at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
    at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:133)
    at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3800)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3425)
    at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2382)
    at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2346)
    at org.eclipse.ui.internal.Workbench.access$$4(Workbench.java:2198)
    at org.eclipse.ui.internal.Workbench$$5.run(Workbench.java:493)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:488)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
    at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113)
    at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:193)
    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:382)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:549)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1236)

!ENTRY org.eclipse.ui 4 0 2008-08-17 19:12:37.900
!MESSAGE Unhandled event loop exception
!STACK 0
java.lang.ClassCastException: scala.tools.eclipse.debug.WatchExpressionDelegate cannot be cast to org.eclipse.debug.core.model.IWatchExpressionDelegate
    at org.eclipse.debug.internal.core.ExpressionManager.newWatchExpressionDelegate(ExpressionManager.java:129)
    at org.eclipse.debug.internal.core.WatchExpression.evaluate(WatchExpression.java:80)
    at org.eclipse.debug.internal.core.WatchExpression.setExpressionContext(WatchExpression.java:118)
    at org.eclipse.jdt.internal.debug.ui.actions.WatchAction.createWatchExpression(WatchAction.java:62)
    at org.eclipse.jdt.internal.debug.ui.actions.WatchAction.run(WatchAction.java:47)
    at org.eclipse.jdt.internal.debug.ui.actions.EvaluateAction.run(EvaluateAction.java:593)
    at org.eclipse.ui.internal.PluginAction.runWithEvent(PluginAction.java:251)
    at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:583)
    at org.eclipse.jface.action.ActionContributionItem.access$$2(ActionContributionItem.java:500)
    at org.eclipse.jface.action.ActionContributionItem$$5.handleEvent(ActionContributionItem.java:411)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003)
    at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3823)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3422)
    at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2382)
    at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2346)
    at org.eclipse.ui.internal.Workbench.access$$4(Workbench.java:2198)
    at org.eclipse.ui.internal.Workbench$$5.run(Workbench.java:493)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:488)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
    at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113)
    at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:193)
    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:382)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:549)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1236)

!ENTRY org.eclipse.ui 4 0 2008-08-17 19:12:37.978
!MESSAGE Unhandled event loop exception
!STACK 0
org.eclipse.swt.SWTException: Failed to execute runnable (java.lang.ClassCastException: scala.tools.eclipse.debug.WatchExpressionDelegate cannot be cast to org.eclipse.debug.core.model.IWatchExpressionDelegate)
    at org.eclipse.swt.SWT.error(SWT.java:3777)
    at org.eclipse.swt.SWT.error(SWT.java:3695)
    at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:136)
    at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3800)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3425)
    at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2382)
    at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2346)
    at org.eclipse.ui.internal.Workbench.access$$4(Workbench.java:2198)
    at org.eclipse.ui.internal.Workbench$$5.run(Workbench.java:493)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:488)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
    at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113)
    at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:193)
    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:382)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:549)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1236)
Caused by: java.lang.ClassCastException: scala.tools.eclipse.debug.WatchExpressionDelegate cannot be cast to org.eclipse.debug.core.model.IWatchExpressionDelegate
    at org.eclipse.debug.internal.core.ExpressionManager.newWatchExpressionDelegate(ExpressionManager.java:129)
    at org.eclipse.debug.internal.core.WatchExpression.evaluate(WatchExpression.java:80)
    at org.eclipse.debug.internal.core.WatchExpression.setExpressionContext(WatchExpression.java:118)
    at org.eclipse.debug.internal.ui.viewers.update.DefaultWatchExpressionModelProxy.contextActivated(DefaultWatchExpressionModelProxy.java:120)
    at org.eclipse.debug.internal.ui.viewers.update.DefaultWatchExpressionModelProxy$$1.runInUIThread(DefaultWatchExpressionModelProxy.java:72)
    at org.eclipse.ui.progress.UIJob$$1.run(UIJob.java:94)
    at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
    at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:133)
    ... 22 more
@scabug
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scabug commented Aug 17, 2008

Imported From: https://issues.scala-lang.org/browse/SI-1234?orig=1
Reporter: @ijuma

@scabug
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scabug commented Aug 26, 2008

@milessabin said:
Fixed in r15932.

@scabug
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scabug commented Aug 28, 2008

@ijuma said:
Miles forgot to actually close the bug, so doing it for him. :)

@scabug scabug closed this as completed May 18, 2011
@scabug scabug added this to the 2.7.2 milestone Apr 6, 2017
@scabug scabug mentioned this issue Apr 6, 2017
Closed
@SethTisue SethTisue mentioned this issue Apr 18, 2017
Closed
hrhino added a commit to hrhino/scala that referenced this issue Dec 31, 2017
@hrhino
Enable issue navigation for IntelliJ.
1637973 
- Cmd-click (Ctrl-click) on scala/bug#1234 goes to that issue page on GitHub.
- SD-1234 ticket references changed to scala/scala-dev#1234.
          9acab45 normalized all bug references to this form.
@hrhino hrhino mentioned this issue Dec 31, 2017
Merged
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