Bug 704639

Summary: NPE when trying to open kernel source in editor
Product: [Fedora] Fedora Reporter: Robin Green <greenrd>
Component: eclipse-systemtapguiAssignee: Roland Grunberg <rgrunber>
Status: CLOSED UPSTREAM QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: low Docs Contact:
Priority: unspecified    
Version: 15CC: anithra
Target Milestone: ---Keywords: Patch
Target Release: ---   
Hardware: i686   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2012-06-18 14:00:30 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Attachments:
Description Flags
Fix none

Description Robin Green 2011-05-13 20:08:11 UTC 
Description of problem:
When I double-click on a kernel source file in the Kernel Source tab, the editor fails to open with a NPE.

Version-Release number of selected component (if applicable):
eclipse-systemtapgui-1.1-2.fc15.noarch

How reproducible:
Always

Steps to Reproduce:
1. Open SystemTap IDE perspective in Eclipse
2. Select the Kernel Source tab
3. Supply /usr/src/debug/kernel-2.6.38.fc15/linux-2.6.38.i686/ as the kernel source code location
3. In the Kernel Source tab, open the directory "fs" and the file within that "namespace.c".

Actual results:
"Could not open the editor: Editor could not be initialized."

Clicking Details gives this stacktrace:
java.lang.NullPointerException
	at org.eclipse.cdt.internal.ui.editor.CEditor.updateScalabilityMode(CEditor.java:1412)
	at org.eclipse.cdt.internal.ui.editor.CEditor.doSetInput(CEditor.java:1359)
	at org.eclipse.ui.texteditor.AbstractTextEditor$19.run(AbstractTextEditor.java:3043)
	at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:464)
	at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:372)
	at org.eclipse.jface.window.ApplicationWindow$1.run(ApplicationWindow.java:759)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
	at org.eclipse.jface.window.ApplicationWindow.run(ApplicationWindow.java:756)
	at org.eclipse.ui.internal.WorkbenchWindow.run(WorkbenchWindow.java:2606)
	at org.eclipse.ui.texteditor.AbstractTextEditor.internalInit(AbstractTextEditor.java:3061)
	at org.eclipse.ui.texteditor.AbstractTextEditor.init(AbstractTextEditor.java:3088)
	at org.eclipse.ui.internal.EditorManager.createSite(EditorManager.java:798)
	at org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:647)
	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:2674)
	at org.eclipse.linuxtools.systemtap.ui.ide.actions.hidden.KernelSourceAction.run(KernelSourceAction.java:162)
	at org.eclipse.linuxtools.systemtap.ui.ide.views.KernelBrowserView$2.doubleClick(KernelBrowserView.java:70)
	at org.eclipse.jface.viewers.StructuredViewer$1.run(StructuredViewer.java:824)
	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.fireDoubleClick(StructuredViewer.java:822)
	at org.eclipse.jface.viewers.AbstractTreeViewer.handleDoubleSelect(AbstractTreeViewer.java:1421)
	at org.eclipse.jface.viewers.StructuredViewer$4.widgetDefaultSelected(StructuredViewer.java:1225)
	at org.eclipse.jface.util.OpenStrategy.fireDefaultSelectionEvent(OpenStrategy.java:238)
	at org.eclipse.jface.util.OpenStrategy.access$0(OpenStrategy.java:235)
	at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:296)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1258)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3540)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3161)
	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(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:616)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:620)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:575)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1408)

Expected results:
File should open in editor

Additional info:
eclipse-cdt-7.0.1-5.fc15.i686
eclipse-platform-3.6.2-5.fc15.i686
Comment 1 Robin Green 2011-05-13 20:11:38 UTC 
If I switch to the C/C++ perspective and simply open the same file from the File menu, the editor does load the file.
Comment 2 Robin Green 2011-05-14 14:35:40 UTC 
Created attachment 498930 [details]
Fix
Comment 3 Fedora Admin XMLRPC Client 2012-01-30 16:07:30 UTC 
This package has changed ownership in the Fedora Package Database.  Reassigning to the new owner of this component.
Comment 4 Roland Grunberg 2012-03-05 18:06:03 UTC 
This seems to have been addressed upstream at : https://bugs.eclipse.org/bugs/show_bug.cgi?id=345010 , and will be in f17.
Comment 5 Alexander Kurtakov 2012-06-13 13:18:30 UTC 
Robin, Is the problem still present in Fedora 17 ?
Comment 6 Robin Green 2012-06-17 18:08:08 UTC 
(In reply to comment #5)
> Robin, Is the problem still present in Fedora 17 ?

No.
Comment 7 Roland Grunberg 2012-06-18 14:00:30 UTC 
With the issue resolved in f17, I think this should be closed as UPSTREAM (since it was fixed and included in upstream's subsequent release of the project).