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Operating System: Fedora 24 Eclipse: Eclipse Java EE IDE for Web Developers. Version: Mars.2 Release (4.5.2) Build id: 20160218-0600 ------------------------------------ Several dialogs don't open at all and features like 'Search' are disabled. - 1 - Java EE perspective Menu: Help -> Installation Details No dialog is opening and in workspace/.metadata/.log the following exception appear: !ENTRY org.eclipse.ui 4 0 2016-07-01 14:15:01.248 !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.workbench.renderers.swt.HandledContributionItem.executeItem(HandledContributionItem.java:799) at org.eclipse.e4.ui.workbench.renderers.swt.HandledContributionItem.handleWidgetSelection(HandledContributionItem.java:675) at org.eclipse.e4.ui.workbench.renderers.swt.HandledContributionItem.access$7(HandledContributionItem.java:659) at org.eclipse.e4.ui.workbench.renderers.swt.HandledContributionItem$4.handleEvent(HandledContributionItem.java:592) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4481) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1329) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3819) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3430) 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.ui.internal.about.InstallationDialog.createFolderItems(InstallationDialog.java:221) at org.eclipse.ui.internal.about.InstallationDialog.createDialogArea(InstallationDialog.java:200) at org.eclipse.jface.dialogs.Dialog.createContents(Dialog.java:768) at org.eclipse.ui.internal.about.InstallationDialog.createContents(InstallationDialog.java:236) at org.eclipse.jface.window.Window.create(Window.java:430) at org.eclipse.jface.dialogs.Dialog.create(Dialog.java:1096) at org.eclipse.jface.window.Window.open(Window.java:792) at org.eclipse.ui.internal.about.InstallationHandler.execute(InstallationHandler.java:27) at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:295) at org.eclipse.ui.internal.handlers.E4HandlerProxy.execute(E4HandlerProxy.java:90) at sun.reflect.GeneratedMethodAccessor103.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) ... 38 more - 2 - Java EE perspective Menu: Search -> Search ... The 'CTRL + H' shortcut is gray and on 'workspace/.metadata/.log' the following exception appear: !ENTRY org.eclipse.ui 4 0 2016-07-01 14:16:42.530 !MESSAGE Unhandled event loop exception !STACK 0 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.internal.ui.OpenSearchDialogAction.run(OpenSearchDialogAction.java:45) at org.eclipse.ui.internal.PluginAction.runWithEvent(PluginAction.java:247) at org.eclipse.ui.internal.WWinPluginAction.runWithEvent(WWinPluginAction.java:228) at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:595) at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:511) at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:420) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4481) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1329) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3819) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3430) 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) The are other dialog that don't open, seem to me they are all related to similar UI library problems.
java.lang.NullPointerException at org.eclipse.swt.widgets.TabFolder.gtk_switch_page(TabFolder.java:570) ... Moving to SWT.
I have also seen this with Eclipse Neon after the update to Fedora 24, I guess it has something to do with Eclipse GTK3 and GTK 3.20 (a change in the native methods used by gtk_switch_page). As a workaround one can force eclipse to use GTK2 (although I will never suggest that, but I also had to do it to be able to work).
I just gave try to Neon EE: Eclipse Java EE IDE for Web Developers. Version: Neon Release (4.6.0) Build id: 20160613-1800 ---------------------- The problem disappeared, I can open the "Installation Detail" dialog and search without having any exception in the .log file. Presumable they know the GTK incompatibility but they did not merged back on 4.5.2 the solution?
(In reply to Noopur Gupta from comment #1) > java.lang.NullPointerException > at org.eclipse.swt.widgets.TabFolder.gtk_switch_page(TabFolder.java:570) > ... > > Moving to SWT. This is fixed with bug 486069. I can't speak for the other stack trace, not 100% sure this is an SWT issue.
Marking as duplicate. Please reopen if you can still reproduce it with Neon cause Mars stream is closed. *** This bug has been marked as a duplicate of bug 486069 ***
