Project: JDT
Bug 54121 BLE while file->revert (during selection restore)
Reported: 2004-03-09 03:30:07 | Status: resolved fixed

The computed newLine in RememberedOffset#getOffset() can be before the start or after the end of the document. TestCase: - saved file: public class Test { public void foo() { } } - edited document (| is the caret): public class Test { public void foo() { | } } - now revert -> BLE The correct fix is to check whether newLine is valid in the current document. org.eclipse.jface.text.BadLocationException at java.lang.Throwable.<init>(Throwable.java) at org.eclipse.jface.text.BadLocationException.<init>(BadLocationException.java:25) at org.eclipse.jface.text.AbstractLineTracker.getLineLength(AbstractLineTracker.java) at org.eclipse.jface.text.AbstractDocument.getLineLength(AbstractDocument.java) at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor$RememberedOffset.getOffset(CompilationUnitEditor.java:804) at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor$RememberedSelection.restore(CompilationUnitEditor.java:690) at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor.restoreSelection(CompilationUnitEditor.java:1558) at org.eclipse.ui.texteditor.AbstractTextEditor$4.run(AbstractTextEditor.java:299) at org.eclipse.ui.texteditor.AbstractTextEditor$ElementStateListener.execute(AbstractTextEditor.java:385) at org.eclipse.ui.texteditor.AbstractTextEditor$ElementStateListener.elementContentReplaced(AbstractTextEditor.java:302) at org.eclipse.ui.editors.text.TextFileDocumentProvider$FileBufferListener.bufferContentReplaced(TextFileDocumentProvider.java:214) at org.eclipse.core.internal.filebuffers.TextFileBufferManager.fireBufferContentReplaced(TextFileBufferManager.java:242) at org.eclipse.core.internal.filebuffers.ResourceTextFileBuffer.revert(ResourceTextFileBuffer.java:169) at org.eclipse.ui.editors.text.TextFileDocumentProvider$1.execute(TextFileDocumentProvider.java:577) at org.eclipse.ui.editors.text.TextFileDocumentProvider$DocumentProviderOperation.run(TextFileDocumentProvider.java:93) at org.eclipse.ui.actions.WorkspaceModifyDelegatingOperation.execute(WorkspaceModifyDelegatingOperation.java:67) at org.eclipse.ui.actions.WorkspaceModifyOperation$1.run(WorkspaceModifyOperation.java:91) at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1567) at org.eclipse.ui.actions.WorkspaceModifyOperation.run(WorkspaceModifyOperation.java:105) at org.eclipse.ui.editors.text.WorkspaceOperationRunner.run(WorkspaceOperationRunner.java:72) at org.eclipse.ui.editors.text.WorkspaceOperationRunner.run(WorkspaceOperationRunner.java:62) at org.eclipse.ui.editors.text.TextFileDocumentProvider.executeOperation(TextFileDocumentProvider.java:391) at org.eclipse.ui.editors.text.TextFileDocumentProvider.resetDocument(TextFileDocumentProvider.java:590) at org.eclipse.ui.texteditor.AbstractTextEditor.performRevert(AbstractTextEditor.java:3253) at org.eclipse.ui.texteditor.AbstractTextEditor.doRevertToSaved(AbstractTextEditor.java:3236) at org.eclipse.ui.texteditor.StatusTextEditor.doRevertToSaved(StatusTextEditor.java:183) at org.eclipse.ui.texteditor.RevertToSavedAction.run(RevertToSavedAction.java:47) at org.eclipse.jface.action.Action.runWithEvent(Action.java:881) at org.eclipse.ui.actions.RetargetAction.runWithEvent(RetargetAction.java:212) at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:550) at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:502) at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:435) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1509) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1480) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:257) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:139) at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:48) at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:260) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:173) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:106) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:79) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:41) at java.lang.reflect.Method.invoke(Method.java:386) at org.eclipse.core.launcher.Main.basicRun(Main.java:305) at org.eclipse.core.launcher.Main.run(Main.java:745) at org.eclipse.core.launcher.Main.main(Main.java:713)

Files changed in fix:
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/CompilationUnitEditor.java