Community
Participate
Working Groups
Steps to reproduce. Create TXT file in any project. Right click in editor -> Show In -> Project Explorer. Stack: !ENTRY org.eclipse.ui 4 0 2018-06-12 15:08:00.136 !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:65) at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:318) at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:252) at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:161) at org.eclipse.e4.core.commands.internal.HandlerServiceHandler.execute(HandlerServiceHandler.java:152) at org.eclipse.core.commands.Command.executeWithChecks(Command.java:494) at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:487) at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:204) at org.eclipse.ui.internal.handlers.LegacyHandlerService.executeCommand(LegacyHandlerService.java:393) at org.eclipse.ui.menus.CommandContributionItem.handleWidgetSelection(CommandContributionItem.java:820) at org.eclipse.ui.menus.CommandContributionItem.lambda$3(CommandContributionItem.java:797) at org.eclipse.ui.menus.CommandContributionItem$$Lambda$434/681674468.handleEvent(Unknown Source) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:86) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4247) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1508) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1531) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1516) at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1320) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4091) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3712) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1170) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1059) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153) at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:683) at org.eclipse.ui.internal.Workbench$$Lambda$24/655304911.run(Unknown Source) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:597) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:152) 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:388) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243) 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:497) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:656) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:592) at org.eclipse.equinox.launcher.Main.run(Main.java:1498) at org.eclipse.equinox.launcher.Main.main(Main.java:1471) Caused by: java.lang.NullPointerException at org.eclipse.ui.internal.WorkbenchPage.busyShowView(WorkbenchPage.java:1297) at org.eclipse.ui.internal.WorkbenchPage$12.run(WorkbenchPage.java:4374) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:71) at org.eclipse.ui.internal.WorkbenchPage.showView(WorkbenchPage.java:4370) at org.eclipse.ui.internal.WorkbenchPage.showView(WorkbenchPage.java:4350) at org.eclipse.ui.internal.ShowInHandler.execute(ShowInHandler.java:79) at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:291) at org.eclipse.ui.internal.handlers.E4HandlerProxy.execute(E4HandlerProxy.java:93) 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:497) at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:55) ... 42 more
Created attachment 274444 [details] Cannot reproduce anim gif Can not reproduce with the given steps: Create TXT file in any project. Right-click in editor -> Show In -> Project Explorer. Tested with latest I-build: Eclipse SDK Version: Photon (4.8) Build id: I20180611-0500 OS: Mac OS X, v.10.13.3, x86_64 / cocoa
wow, looks like my two fresh photon workspaces are broken. On third works fine :/ After remove ./org.eclipse.e4.workbench/workbench.xmi no NPE i see. Also list of perspectives is correct. Is there any way to prevent such situations in future? Or always where something looks bad I have to reset UI file manually?
Closing as worksforme. I can’t really help with the workbench.xmi. Generally, I believe this depends on plugins installed. If you see a frequent error, I suggest 1. Understand which plugin is causing this, 2. Reopen this bug, attach the xmi and tell which plugins you believe are responsible.
(In reply to Patrik Suzzi from comment #3) > Closing as worksforme. Why? If we can't reproduce it does not mean, but does not exist. (In reply to Dawid Pakula from comment #2) > wow, looks like my two fresh photon workspaces are broken. On third works > fine :/ > > After remove ./org.eclipse.e4.workbench/workbench.xmi no NPE i see. Also > list of perspectives is correct. > > Is there any way to prevent such situations in future? Or always where > something looks bad I have to reset UI file manually? I wonder how you've get the broken state. If you could go inside you and ask: what was different in those two broken workspaces, may be we would be able to get steps to reproduce. Think about specific perspectives/multi-window setups, detached views etc. I will push a NPE guard which will convert the NPE to PartInitException. It will not fix anything, but at least we will get dedicated "Failed to show in" errors instead of " Unhandled event loop exception".
New Gerrit change created: https://git.eclipse.org/r/124464
Gerrit change https://git.eclipse.org/r/124464 was merged to [master]. Commit: http://git.eclipse.org/c/platform/eclipse.platform.ui.git/commit/?id=bca7a5d8b76cb8916cc51bc1060ee4589712a03a
(In reply to Eclipse Genie from comment #6) > Gerrit change https://git.eclipse.org/r/124464 was merged to [master]. > Commit: > http://git.eclipse.org/c/platform/eclipse.platform.ui.git/commit/ > ?id=bca7a5d8b76cb8916cc51bc1060ee4589712a03a NPE should be replaced by PartInitException, so formally this is fixed now. Waiting for steps to reproduce or new bug reports with updated stack to fix the root cause.
