Project: JDT
Bug 260362 NPE when using content assist in compare
Reported: 2009-01-08 04:55:15 | Status: verified fixed

HEAD. I get an NPE when doing content assist in the Java compare viewer. It works if the input is the CU but if I narrow down to an element it breaks. When I do Ctrl+Space at the beginning of the file (when the CU is the !ENTRY org.eclipse.ui 4 4 2009-01-08 10:50:41.420 !MESSAGE "Content Assist" did not complete normally. Please see the log for more information. !ENTRY org.eclipse.ui 4 0 2009-01-08 10:50:41.420 !MESSAGE java.lang.NullPointerException !STACK 0 java.lang.NullPointerException at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor$AdaptedSourceViewer.doOperation(CompilationUnitEditor.java:177) at org.eclipse.ui.texteditor.ContentAssistAction$1.run(ContentAssistAction.java:82) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.ui.texteditor.ContentAssistAction.run(ContentAssistAction.java:80) at org.eclipse.jface.action.Action.runWithEvent(Action.java:498) at org.eclipse.ui.commands.ActionHandler.execute(ActionHandler.java:185) at org.eclipse.ui.internal.handlers.LegacyHandlerWrapper.execute(LegacyHandlerWrapper.java:109) 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:471) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.press(WorkbenchKeyboard.java:823) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.processKeyEvent(WorkbenchKeyboard.java:879) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.filterKeySequenceBindings(WorkbenchKeyboard.java:570) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.access$3(WorkbenchKeyboard.java:511) at org.eclipse.ui.internal.keys.WorkbenchKeyboard$KeyDownFilter.handleEvent(WorkbenchKeyboard.java:126) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1190) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1002) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1027) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1012) at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1040) at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1036) at org.eclipse.swt.widgets.Widget.wmChar(Widget.java:1358) at org.eclipse.swt.widgets.Control.WM_CHAR(Control.java:4019) at org.eclipse.swt.widgets.Canvas.WM_CHAR(Canvas.java:346) at org.eclipse.swt.widgets.Control.windowProc(Control.java:3912) at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:342) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4584) at org.eclipse.swt.internal.win32.OS.CallWindowProcW(Native Method) at org.eclipse.swt.internal.win32.OS.CallWindowProc(OS.java:2295) at org.eclipse.swt.internal.BidiUtil.windowProc(BidiUtil.java:639) at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method) at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:2392) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3468) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2384) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2348) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2200) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:495) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:333) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:490) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:193) 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:366) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:177) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:550) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:505) at org.eclipse.equinox.launcher.Main.run(Main.java:1237) at org.eclipse.equinox.launcher.Main.main(Main.java:1213)

Files changed in fix:
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/compare/JavaMergeViewer.java