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due to a change in GTK2 in debian/sid, Eclipse now crashes every few minutes and I was forced to switch to GTK3. calling Search either via short cut or menu (main menu -> search -> search ...) does not produce the expected dialog, but in <WS>/.metadata/.log: !ENTRY org.eclipse.ui 4 0 2016-06-03 11:36:40.615 !MESSAGE Unhandled event loop exception !STACK 0 org.eclipse.e4.core.di.InjectionException: java.lang.NullPointerException at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:68) at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:252) at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:234) at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:132) at org.eclipse.e4.core.commands.internal.HandlerServiceHandler.execute(HandlerServiceHandler.java:152) at org.eclipse.core.commands.Command.executeWithChecks(Command.java:493) at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:486) at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:210) at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.executeCommand(KeyBindingDispatcher.java:286) at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.press(KeyBindingDispatcher.java:507) at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.processKeyEvent(KeyBindingDispatcher.java:558) at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.filterKeySequenceBindings(KeyBindingDispatcher.java:378) at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.access$0(KeyBindingDispatcher.java:324) at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher$KeyDownFilter.handleEvent(KeyBindingDispatcher.java:86) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1550) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1328) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1353) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1338) at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1365) at org.eclipse.swt.widgets.Widget.gtk_key_press_event(Widget.java:763) at org.eclipse.swt.widgets.Control.gtk_key_press_event(Control.java:3325) at org.eclipse.swt.widgets.Composite.gtk_key_press_event(Composite.java:793) at org.eclipse.swt.widgets.Widget.windowProc(Widget.java:1980) at org.eclipse.swt.widgets.Control.windowProc(Control.java:5685) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4717) at org.eclipse.swt.internal.gtk.OS._gtk_main_do_event(Native Method) at org.eclipse.swt.internal.gtk.OS.gtk_main_do_event(OS.java:9326) at org.eclipse.swt.widgets.Display.eventProc(Display.java:1225) at org.eclipse.swt.internal.gtk.OS._g_main_context_iteration(Native Method) at org.eclipse.swt.internal.gtk.OS.g_main_context_iteration(OS.java:2435) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3428) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1127) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1018) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:694) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:606) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:139) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:669) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608) at org.eclipse.equinox.launcher.Main.run(Main.java:1515) at org.eclipse.equinox.launcher.Main.main(Main.java:1488) Caused by: java.lang.NullPointerException at org.eclipse.swt.widgets.TabFolder.gtk_switch_page(TabFolder.java:570) at org.eclipse.swt.widgets.Widget.windowProc(Widget.java:2009) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4723) at org.eclipse.swt.internal.gtk.OS._gtk_widget_show(Native Method) at org.eclipse.swt.internal.gtk.OS.gtk_widget_show(OS.java:14774) at org.eclipse.swt.widgets.TabFolder.createItem(TabFolder.java:311) at org.eclipse.swt.widgets.TabItem.createWidget(TabItem.java:123) at org.eclipse.swt.widgets.TabItem.<init>(TabItem.java:75) at org.eclipse.search.internal.ui.SearchDialog.createPageArea(SearchDialog.java:437) at org.eclipse.search.internal.ui.util.ExtendedDialogWindow.createDialogArea(ExtendedDialogWindow.java:140) at org.eclipse.jface.dialogs.Dialog.createContents(Dialog.java:768) at org.eclipse.jface.window.Window.create(Window.java:430) at org.eclipse.jface.dialogs.Dialog.create(Dialog.java:1096) at org.eclipse.search.internal.ui.SearchDialog.create(SearchDialog.java:301) at org.eclipse.jface.window.Window.open(Window.java:792) at org.eclipse.search.internal.ui.OpenSearchDialogAction.run(OpenSearchDialogAction.java:54) at org.eclipse.search.ui.NewSearchUI.openSearchDialog(NewSearchUI.java:299) at org.eclipse.search.internal.ui.OpenFileSearchPageAction.run(OpenFileSearchPageAction.java:46) at org.eclipse.ui.internal.handlers.ActionDelegateHandlerProxy.execute(ActionDelegateHandlerProxy.java:299) at org.eclipse.ui.internal.handlers.E4HandlerProxy.execute(E4HandlerProxy.java:90) at sun.reflect.GeneratedMethodAccessor68.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:56) ... 53 more
Thanks for reporting! This is the same as Bug 493454, the relevant exception is here: Caused by: java.lang.NullPointerException at org.eclipse.swt.widgets.TabFolder.gtk_switch_page(TabFolder.java:570) You're probably using Eclipse Mars.2 or lower, and this bug is resolved via Bug 486069. I suggest you to download the latest developer build of Eclipse Neon, and verify the error is solved. https://www.eclipse.org/downloads/index-developer.php *** This bug has been marked as a duplicate of bug 486069 ***
