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Build Identifier: 20100917-0705 I try to create a new workspace and import my Java projects. But when I try to open a source file, I always get this exception: java.lang.NullPointerException at org.eclipse.jface.text.source.LineNumberRulerColumn.getWidth(LineNumberRulerColumn.java:488) at org.eclipse.jface.text.source.LineNumberChangeRulerColumn.getWidth(LineNumberChangeRulerColumn.java:295) at org.eclipse.ui.internal.texteditor.LineNumberColumn.getWidth(LineNumberColumn.java:140) at org.eclipse.jface.text.source.CompositeRuler.getWidth(CompositeRuler.java:710) at org.eclipse.jface.text.source.SourceViewer$RulerLayout.computeSize(SourceViewer.java:116) at org.eclipse.swt.widgets.Composite.computeSize(Composite.java:233) at org.eclipse.swt.layout.FillData.computeSize(FillData.java:26) at org.eclipse.swt.layout.FillLayout.computeChildSize(FillLayout.java:151) at org.eclipse.swt.layout.FillLayout.computeSize(FillLayout.java:122) at org.eclipse.swt.widgets.Composite.computeSize(Composite.java:233) at org.eclipse.swt.layout.GridData.computeSize(GridData.java:491) at org.eclipse.swt.layout.GridLayout.layout(GridLayout.java:217) at org.eclipse.swt.layout.GridLayout.layout(GridLayout.java:193) at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1275) at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1261) at org.eclipse.swt.widgets.Composite.layout(Composite.java:664) at org.eclipse.jdt.internal.ui.javaeditor.JavaEditor.showBreadcrumb(JavaEditor.java:1960) at org.eclipse.jdt.internal.ui.javaeditor.JavaEditor.createPartControl(JavaEditor.java:3115) at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor.createPartControl(CompilationUnitEditor.java:1475) at org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:670) at org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:465) at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:595) at org.eclipse.ui.internal.PartPane.setVisible(PartPane.java:313) at org.eclipse.ui.internal.presentations.PresentablePart.setVisible(PresentablePart.java:180) at org.eclipse.ui.internal.presentations.util.PresentablePartFolder.select(PresentablePartFolder.java:270) at org.eclipse.ui.internal.presentations.util.LeftToRightTabOrder.select(LeftToRightTabOrder.java:65) at org.eclipse.ui.internal.presentations.util.TabbedStackPresentation.selectPart(TabbedStackPresentation.java:473) at org.eclipse.ui.internal.PartStack.refreshPresentationSelection(PartStack.java:1254) at org.eclipse.ui.internal.PartStack.setSelection(PartStack.java:1207) at org.eclipse.ui.internal.PartStack.showPart(PartStack.java:1606) at org.eclipse.ui.internal.PartStack.add(PartStack.java:497) at org.eclipse.ui.internal.EditorStack.add(EditorStack.java:103) at org.eclipse.ui.internal.PartStack.add(PartStack.java:483) at org.eclipse.ui.internal.EditorStack.add(EditorStack.java:112) at org.eclipse.ui.internal.EditorSashContainer.addEditor(EditorSashContainer.java:63) at org.eclipse.ui.internal.EditorAreaHelper.addToLayout(EditorAreaHelper.java:225) at org.eclipse.ui.internal.EditorAreaHelper.addEditor(EditorAreaHelper.java:213) at org.eclipse.ui.internal.EditorManager.createEditorTab(EditorManager.java:778) at org.eclipse.ui.internal.EditorManager.openEditorFromDescriptor(EditorManager.java:677) at org.eclipse.ui.internal.EditorManager.openEditor(EditorManager.java:638) at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2860) at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2768) at org.eclipse.ui.internal.WorkbenchPage.access$11(WorkbenchPage.java:2760) at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:2711) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2707) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2691) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2682) at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:378) at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:178) at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:229) at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:208) at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun(SelectionDispatchAction.java:274) at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run(SelectionDispatchAction.java:250) at org.eclipse.jdt.internal.ui.packageview.PackageExplorerActionGroup.handleOpen(PackageExplorerActionGroup.java:373) at org.eclipse.jdt.internal.ui.packageview.PackageExplorerPart$4.open(PackageExplorerPart.java:526) at org.eclipse.ui.OpenAndLinkWithEditorHelper$InternalListener.open(OpenAndLinkWithEditorHelper.java:48) at org.eclipse.jface.viewers.StructuredViewer$2.run(StructuredViewer.java:845) 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.fireOpen(StructuredViewer.java:843) at org.eclipse.jface.viewers.StructuredViewer.handleOpen(StructuredViewer.java:1131) at org.eclipse.jface.viewers.StructuredViewer$6.handleOpen(StructuredViewer.java:1235) at org.eclipse.jface.util.OpenStrategy.fireOpenEvent(OpenStrategy.java:264) at org.eclipse.jface.util.OpenStrategy.access$2(OpenStrategy.java:258) at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:298) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4066) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3657) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2640) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2438) at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:664) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115) 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:369) 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:619) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574) at org.eclipse.equinox.launcher.Main.run(Main.java:1407) Reproducible: Always Steps to Reproduce: 1. Switch to new workspace 2. Import (former exported) Preferences 3. Import existing (Java) project 4. Double click *.java file in package explorer
>Build Identifier: 20100917-0705 What kind of build/download is this exactly? >2. Import (former exported) Preferences Can you please attach them here. >4. Double click *.java file in package explorer Can you please attach that file here.
Ping.
Created attachment 183909 [details] Preferences file. (In reply to comment #1) > >Build Identifier: 20100917-0705 > What kind of build/download is this exactly? eclipse-java-helios-SR1-win32.zip > >2. Import (former exported) Preferences > Can you please attach them here. Here you go... > >4. Double click *.java file in package explorer > Can you please attach that file here. Sorry, don't know which one it was. I guess it doesn't matter, because it happened for any file I clicked.
Tried these steps: 1. download 3.6 (Helios) 2. start with new workspace 3. import attached preference file 4. create a Java project with some Java files 5. open them ==> works as expected (no NPE) Can you still reproduce this? If so, please provide more detailed steps.
Nope. As I updated to eclipse-SDK-M20101124-0800-win32.zip (to fix the very annoying bug 326434), this bug didn't occur anymore.
Please reopen with more detailed steps if you see this again.
Today I also have this problem occuring often. This is the stack trace in my case: java.lang.NullPointerException at org.eclipse.jface.text.source.LineNumberRulerColumn.getWidth(LineNumberRulerColumn.java:488) at org.eclipse.jface.text.source.LineNumberChangeRulerColumn.getWidth(LineNumberChangeRulerColumn.java:295) at org.eclipse.ui.internal.texteditor.LineNumberColumn.getWidth(LineNumberColumn.java:140) at org.eclipse.jface.text.source.CompositeRuler.getWidth(CompositeRuler.java:710) at org.eclipse.jface.text.source.SourceViewer$RulerLayout.layout(SourceViewer.java:143) at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1263) at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1270) at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1270) at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1270) at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1270) at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1270) at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1270) at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1270) at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1270) at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1270) at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1270) at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1270) at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1270) at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1270) at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1270) at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1270) at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1249) at org.eclipse.swt.widgets.Composite.setLayoutDeferred(Composite.java:1086) at org.eclipse.jface.text.TextViewer.internalRevealRangeWithWorkaround(TextViewer.java:3278) at org.eclipse.jface.text.TextViewer.revealRange(TextViewer.java:3250) at org.eclipse.jface.text.source.SourceViewer.setRangeIndication(SourceViewer.java:1109) at org.eclipse.jface.text.source.projection.ProjectionViewer.setRangeIndication(ProjectionViewer.java:1315) at org.eclipse.ui.texteditor.AbstractTextEditor.setHighlightRange(AbstractTextEditor.java:6240) at org.eclipse.jdt.internal.ui.javaeditor.JavaEditor.adjustHighlightRange(JavaEditor.java:2470) at org.eclipse.ui.texteditor.AbstractTextEditor.selectAndReveal(AbstractTextEditor.java:6321) at org.eclipse.ui.texteditor.AbstractTextEditor.selectAndReveal(AbstractTextEditor.java:6295) at org.eclipse.debug.internal.ui.sourcelookup.SourceLookupFacility.positionEditor(SourceLookupFacility.java:314) at org.eclipse.debug.internal.ui.sourcelookup.SourceLookupFacility.display(SourceLookupFacility.java:242) at org.eclipse.debug.ui.DebugUITools.displaySource(DebugUITools.java:994) at org.eclipse.debug.internal.ui.elements.adapters.StackFrameSourceDisplayAdapter$SourceDisplayJob.runInUIThread(StackFrameSourceDisplayAdapter.java:157) 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:4144) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3761) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1053) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:942) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:86) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:588) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:543) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) Using Eclipse Juno 4.2.2: eclipse.buildId=M20130204-1200 java.version=1.7.0_17 java.vendor=Oracle Corporation BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=it_IT Framework arguments: -groovy.compiler.level 18 Command-line arguments: -os win32 -ws win32 -arch x86_64 -groovy.compiler.level 18 -data d:\ws\42\k-trunk I'm simply trying to open editors from the Call Hierarchy view or from the Debug view (after I hit a breakpoint). I don't have more precise steps to repro.
