Bug 7442

Description Peter Burka 2002-01-10 12:28:10 EST

I was debugging a new plug-in when the UI in the master workbench froze on me.  

I was playing around with the editor's title.  I had implemented a getTitle() 
method, but then commented out the method and put in a setInitializationData 
method (which only does a super to the EditorPart implementation).

I had set a breakpoint in my editor's setInitializationData method.  The 
runtime hit the breakpoint, and I clicked on step into in the debugger.  A 
dialog appeared prompting me for the source path for rt.jar (why? The code 
wasn't in rt.jar).  It was impossible to give the dialog focus, and since it 
was modal it effectively froze my UI.

I had two windows open at the time: my workbench and a debug window.  In the 
workbench I had a Packages view and a Hierarchy view (sharing one pane, 
Hierarchy view on top) and an Outline view.  The hierarchy view was showing the 
hierarchy for BOEditor (a subclass of EditorPart with no subclasses of its 
own).  Note that getTitle() had been removed from the hierarchy view's methods 
list, as well as from the Outline's.

I found the following stack trace in my .log file:

Log: Thu Jan 10 12:29:34 EST 2002
4 org.eclipse.jdt.ui 1 Internal Error
Java Model Exception: Java Model Status [getTitle does not exist.]
	at org.eclipse.jdt.internal.core.JavaElement.newNotPresentException
(JavaElement.java:448)
	at org.eclipse.jdt.internal.core.JavaElement.openHierarchy
(JavaElement.java(Compiled Code))
	at org.eclipse.jdt.internal.core.JavaElement.getElementInfo
(JavaElement.java(Compiled Code))
	at org.eclipse.jdt.internal.core.SourceMethod.isConstructor
(SourceMethod.java(Compiled Code))
	at 
org.eclipse.jdt.internal.ui.typehierarchy.MethodsViewer.findSimilarMethod
(MethodsViewer.java:372)
	at 
org.eclipse.jdt.internal.ui.typehierarchy.MethodsViewer.handleInvalidSelection
(MethodsViewer.java:354)
	at org.eclipse.jface.viewers.StructuredViewer.preservingSelection
(StructuredViewer.java(Compiled Code))
	at org.eclipse.jface.viewers.StructuredViewer.refresh
(StructuredViewer.java:623)
	at org.eclipse.jface.viewers.StructuredViewer.refresh
(StructuredViewer.java:591)
	at 
org.eclipse.jdt.internal.ui.typehierarchy.MethodsContentProvider.doTypeHierarchy
Changed(MethodsContentProvider.java:183)
	at 
org.eclipse.jdt.internal.ui.typehierarchy.MethodsContentProvider.access$0
(MethodsContentProvider.java:170)
	at 
org.eclipse.jdt.internal.ui.typehierarchy.MethodsContentProvider$1.run
(MethodsContentProvider.java:163)
	at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java(Compiled 
Code))
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages
(Synchronizer.java(Compiled Code))
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java
(Compiled Code))
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java
(Compiled Code))
	at org.eclipse.ui.internal.dialogs.EventLoopProgressMonitor.runEventLoop
(EventLoopProgressMonitor.java(Compiled Code))
	at org.eclipse.ui.internal.dialogs.EventLoopProgressMonitor.subTask
(EventLoopProgressMonitor.java(Compiled Code))
	at org.eclipse.core.runtime.ProgressMonitorWrapper.subTask
(ProgressMonitorWrapper.java(Compiled Code))
	at org.eclipse.core.runtime.SubProgressMonitor.subTask
(SubProgressMonitor.java(Compiled Code))
	at org.eclipse.core.internal.resources.Workspace.endOperation
(Workspace.java(Compiled Code))
	at org.eclipse.core.internal.resources.Workspace.run
(Workspace.java:1237)
	at org.eclipse.ui.actions.WorkspaceModifyOperation.run
(WorkspaceModifyOperation.java:78)
	at org.eclipse.ui.texteditor.AbstractTextEditor.performSaveOperation
(AbstractTextEditor.java:1485)
	at 
org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor.performSaveOperatio
n(CompilationUnitEditor.java:592)
	at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor.doSave
(CompilationUnitEditor.java:640)
	at org.eclipse.ui.internal.EditorManager$9.run(EditorManager.java:785)
	at org.eclipse.jface.operation.ModalContext.runInCurrentThread
(ModalContext.java:296)
	at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:249)
	at org.eclipse.jface.dialogs.ProgressMonitorDialog.run
(ProgressMonitorDialog.java:335)
	at org.eclipse.ui.internal.EditorManager.runProgressMonitorOperation
(EditorManager.java:643)
	at org.eclipse.ui.internal.EditorManager.saveEditor
(EditorManager.java:790)
	at org.eclipse.ui.internal.WorkbenchPage.saveEditor
(WorkbenchPage.java:1309)
	at org.eclipse.ui.internal.SaveAction.run(SaveAction.java:32)
	at org.eclipse.jface.action.Action.runWithEvent(Action.java:452)
	at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection
(ActionContributionItem.java:407)
	at org.eclipse.jface.action.ActionContributionItem.handleWidgetEvent
(ActionContributionItem.java(Compiled Code))
	at 
org.eclipse.jface.action.ActionContributionItem$ActionListener.handleEvent
(ActionContributionItem.java(Compiled Code))
	at 
org.eclipse.jface.action.ActionContributionItem$ActionListener.handleEvent
(ActionContributionItem.java(Compiled Code))
	at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java(Compiled 
Code))
	at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java(Compiled 
Code))
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java
(Compiled Code))
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java
(Compiled Code))
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java
(Compiled Code))
	at org.eclipse.ui.internal.Workbench.run(Workbench.java:798)
	at org.eclipse.core.internal.boot.InternalBootLoader.run
(InternalBootLoader.java:821)
	at org.eclipse.core.boot.BootLoader.run(BootLoader.java:285)
	at java.lang.reflect.Method.invoke(Native Method)
	at org.eclipse.core.launcher.Main.basicRun(Main.java:151)
	at org.eclipse.core.launcher.Main.run(Main.java:502)
	at org.eclipse.core.launcher.Main.main(Main.java:362)
	4 org.eclipse.jdt.core 969 getTitle does not exist.