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Created attachment 204142 [details] Proposed fix As reported by Andrew Gvozdev in bug 358832. This bug report was created to attach patch. Create Executable XL C/C++ project and try to select Paths and Symbols in its properties. Please, submit separate patch to fix this issue. java.lang.NullPointerException at org.eclipse.cdt.ui.newui.AbstractLangsListTab.updateData(AbstractLangsListTab.java:396) at org.eclipse.cdt.ui.newui.AbstractLangsListTab.createControls(AbstractLangsListTab.java:226) at org.eclipse.cdt.ui.newui.IncludeTab.createControls(IncludeTab.java:86) at org.eclipse.cdt.ui.newui.AbstractCPropertyTab.createControls(AbstractCPropertyTab.java:135) at org.eclipse.cdt.ui.newui.AbstractPage.loadTab(AbstractPage.java:1105) at org.eclipse.cdt.ui.newui.AbstractPage.loadExtensionsSynchronized(AbstractPage.java:1052) at org.eclipse.cdt.ui.newui.AbstractPage.createWidgets(AbstractPage.java:360) at org.eclipse.cdt.ui.newui.AbstractPage.contentForCDT(AbstractPage.java:346) at org.eclipse.cdt.ui.newui.AbstractPage.createContents(AbstractPage.java:244) at org.eclipse.jface.preference.PreferencePage.createControl(PreferencePage.java:232) at org.eclipse.jface.preference.PreferenceDialog.createPageControl(PreferenceDialog.java:1501) at org.eclipse.jface.preference.PreferenceDialog$14.run(PreferenceDialog.java:1258) 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.preference.PreferenceDialog.showPage(PreferenceDialog.java:1252) at org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.showPage(FilteredPreferenceDialog.java:674) at org.eclipse.jface.preference.PreferenceDialog$10.run(PreferenceDialog.java:708) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.jface.preference.PreferenceDialog$9.selectionChanged(PreferenceDialog.java:704) at org.eclipse.jface.viewers.StructuredViewer$3.run(StructuredViewer.java:888) 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.firePostSelectionChanged(StructuredViewer.java:886) at org.eclipse.jface.viewers.StructuredViewer.handlePostSelect(StructuredViewer.java:1226) at org.eclipse.jface.viewers.StructuredViewer$5.widgetSelected(StructuredViewer.java:1251) at org.eclipse.jface.util.OpenStrategy.firePostSelectionEvent(OpenStrategy.java:262) at org.eclipse.jface.util.OpenStrategy.access$5(OpenStrategy.java:256) at org.eclipse.jface.util.OpenStrategy$3.run(OpenStrategy.java:433) 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:4140) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3757) at org.eclipse.jface.window.Window.runEventLoop(Window.java:825) at org.eclipse.jface.window.Window.open(Window.java:801) at org.eclipse.ui.dialogs.PropertyDialogAction.run(PropertyDialogAction.java:158) at org.eclipse.jface.action.Action.runWithEvent(Action.java:498) at org.eclipse.jface.commands.ActionHandler.execute(ActionHandler.java:119) at org.eclipse.core.commands.Command.executeWithChecks(Command.java:476) at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:508) at org.eclipse.ui.internal.handlers.HandlerService.executeCommand(HandlerService.java:169) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.executeCommand(WorkbenchKeyboard.java:468) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.press(WorkbenchKeyboard.java:786) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.processKeyEvent(WorkbenchKeyboard.java:885) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.filterKeySequenceBindings(WorkbenchKeyboard.java:567) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.access$3(WorkbenchKeyboard.java:508) at org.eclipse.ui.internal.keys.WorkbenchKeyboard$KeyDownFilter.handleEvent(WorkbenchKeyboard.java:123) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1262) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1052) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1077) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1062) at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1104) at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1100) at org.eclipse.swt.widgets.Widget.wmSysChar(Widget.java:2434) at org.eclipse.swt.widgets.Control.WM_SYSCHAR(Control.java:5179) at org.eclipse.swt.widgets.Control.windowProc(Control.java:4604) at org.eclipse.swt.widgets.Tree.windowProc(Tree.java:5937) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4972) at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method) at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:2531) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3752) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2696) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2660) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2494) at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:674) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:667) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123) 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:344) 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:622) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577) at org.eclipse.equinox.launcher.Main.run(Main.java:1410) at org.eclipse.equinox.launcher.Main.main(Main.java:1386) The patch makes the tab remember the language name (the one that is shown in the list) so it should be more robust as we know those strings are always there and are not null.
*** cdt git genie on behalf of Andrew Gvozdev *** bug 359176: cosmetics, more descriptive names [*] http://git.eclipse.org/c/cdt/org.eclipse.cdt.git/commit/?id=8382397625b045fbdc07f9d42a5dbd1f866f1a41
*** cdt git genie on behalf of Eugene Ostroukhov *** bug 359176: NPE in XL C++ project [*] http://git.eclipse.org/c/cdt/org.eclipse.cdt.git/commit/?id=210549ba6139c0b74c9f67f2dc2ece4d626d5fc1
*** cdt git genie on behalf of Andrew Gvozdev *** bug 359176: cosmetics, more descriptive names [*] http://git.eclipse.org/c/cdt/org.eclipse.cdt.git/commit/?id=ec37f12395f28fdd16aed62d81e6aba45c40b3b2
*** cdt git genie on behalf of Eugene Ostroukhov *** bug 359176: NPE in XL C++ project [*] http://git.eclipse.org/c/cdt/org.eclipse.cdt.git/commit/?id=0a3729a913b95c7a58f3982e123368a82c7b6fcb
You did not have to create another bug, this problem is a result of patch from bug 358832, we could just continue there. Anyway, thanks for fast fix. Applied to master and 8.0.2 and added some cosmetic changes.
Verified in 8.0.2 RC1. I did not get an NPE in Paths and Symbols with a XLC project while testing for bug 358832.
