Bug 447291 - [sirius] NPE in ManageSessionActionProvider.dispose
Summary: [sirius] NPE in ManageSessionActionProvider.dispose
Status: NEW
Alias: None
Product: Sirius
Classification: Modeling
Component: Core (show other bugs)
Version: 1.0.0   Edit
Hardware: All All
: P3 normal (vote)
Target Milestone: ---   Edit
Assignee: Project inbox CLA
QA Contact:
URL:
Whiteboard: trivial
Keywords: triaged
Depends on:
Blocks:
 
Reported: 2014-10-15 06:45 EDT by EPP Error Reports CLA
Modified: 2018-12-17 11:21 EST (History)
1 user (show)

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Description EPP Error Reports CLA 2014-10-15 06:45:08 EDT 
Hello committers,

we received a new error report for Eclipse 4.5.0.I20140918-0330.


General Information:
    anonymous-id:         cb778dfd-6956-4ebb-9e2f-81dcdcb9cf51
    eclipse-build-id:     4.5.0.I20140918-0330
    eclipse-product:      org.eclipse.platform.ide
    operating system:     Linux 3.13.0 (x86_64) - gtk
    java-runtime-version: 1.7.0_67-b01

The following plug-ins were present on the execution stack (*):
    1. org.eclipse.core.databinding.observable_1.4.1.v20140910-2107
    2. org.eclipse.core.databinding_1.4.100.v20140910-2107
    3. org.eclipse.core.runtime_3.10.0.v20140724-1132
    4. org.eclipse.e4.core.contexts_1.3.100.v20140407-1019
    5. org.eclipse.e4.core.di_1.4.0.v20140813-2240
    6. org.eclipse.e4.ui.workbench_1.2.0.v20140905-1352
    7. org.eclipse.e4.ui.workbench.renderers.swt_0.12.100.v20140915-0623
    8. org.eclipse.e4.ui.workbench.swt_0.12.100.v20140908-1525
    9. org.eclipse.equinox.app_1.3.200.v20130910-1609
    10. org.eclipse.equinox.launcher_1.3.0.v20140415-2008
    11. org.eclipse.sirius.ui_1.0.0.201406040902
    12. org.eclipse.sirius_1.0.0.201406040902
    13. org.eclipse.swt_3.104.0.v20140916-1012
    14. org.eclipse.ui_3.107.0.v20140911-1616
    15. org.eclipse.ui.ide.application_1.0.600.v20140909-1818
    16. org.eclipse.ui.ide_3.10.100.v20140905-0917
    17. org.eclipse.ui.navigator_3.5.500.v20140828-1000


Error Status:

    code:                   0
    plugin:                 org.eclipse.e4.ui.workbench_1.2.0.v20140905-1352
    message:                
    fingerprint:            a8827458
    exception class:        java.lang.NullPointerException
    exception message:      -
    number of children:     0
    
    java.lang.NullPointerException: null
    at org.eclipse.sirius.ui.tools.internal.views.common.navigator.ManageSessionActionProvider.dispose(ManageSessionActionProvider.java:76)
    at org.eclipse.ui.navigator.NavigatorActionService.dispose(NavigatorActionService.java:286)
    at org.eclipse.ui.navigator.CommonNavigatorManager.dispose(CommonNavigatorManager.java:212)
    at org.eclipse.ui.navigator.CommonNavigator.dispose(CommonNavigator.java:318)
    at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.invalidate(CompatibilityPart.java:233)
    at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.destroy(CompatibilityPart.java:387)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethodAccessorImpl.java:-2)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:55)
    at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:888)
    at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:869)
    at org.eclipse.e4.core.internal.di.InjectorImpl.uninject(InjectorImpl.java:180)
    at org.eclipse.e4.core.internal.di.Requestor.uninject(Requestor.java:158)
    at org.eclipse.e4.core.internal.contexts.ContextObjectSupplier$ContextInjectionListener.update(ContextObjectSupplier.java:82)
    at org.eclipse.e4.core.internal.contexts.TrackableComputationExt.update(TrackableComputationExt.java:107)
    at org.eclipse.e4.core.internal.contexts.EclipseContext.removeListenersTo(EclipseContext.java:464)
    at org.eclipse.e4.core.contexts.ContextInjectionFactory.uninject(ContextInjectionFactory.java:144)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:942)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$3(PartRenderingEngine.java:862)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$8.run(PartRenderingEngine.java:857)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:841)
    at org.eclipse.e4.ui.workbench.renderers.swt.ElementReferenceRenderer.disposeWidget(ElementReferenceRenderer.java:118)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:933)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$3(PartRenderingEngine.java:862)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$8.run(PartRenderingEngine.java:857)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:841)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:894)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$3(PartRenderingEngine.java:862)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$8.run(PartRenderingEngine.java:857)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:841)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:894)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$3(PartRenderingEngine.java:862)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$8.run(PartRenderingEngine.java:857)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:841)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:894)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$3(PartRenderingEngine.java:862)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$8.run(PartRenderingEngine.java:857)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:841)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:887)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$3(PartRenderingEngine.java:862)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$8.run(PartRenderingEngine.java:857)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:841)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:894)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$3(PartRenderingEngine.java:862)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$8.run(PartRenderingEngine.java:857)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:841)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:894)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$3(PartRenderingEngine.java:862)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$8.run(PartRenderingEngine.java:857)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:841)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:894)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$3(PartRenderingEngine.java:862)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$8.run(PartRenderingEngine.java:857)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:841)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:894)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$3(PartRenderingEngine.java:862)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$8.run(PartRenderingEngine.java:857)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:841)
    at org.eclipse.ui.internal.WorkbenchWindow.hardClose(WorkbenchWindow.java:1937)
    at org.eclipse.ui.internal.WorkbenchWindow.busyClose(WorkbenchWindow.java:1560)
    at org.eclipse.ui.internal.WorkbenchWindow.access$15(WorkbenchWindow.java:1527)
    at org.eclipse.ui.internal.WorkbenchWindow$10.run(WorkbenchWindow.java:1592)
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
    at org.eclipse.ui.internal.WorkbenchWindow.close(WorkbenchWindow.java:1589)
    at org.eclipse.ui.internal.Workbench$14.run(Workbench.java:1156)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.ui.internal.Workbench.busyClose(Workbench.java:1138)
    at org.eclipse.ui.internal.Workbench.access$21(Workbench.java:1080)
    at org.eclipse.ui.internal.Workbench$19.run(Workbench.java:1411)
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
    at org.eclipse.ui.internal.Workbench.close(Workbench.java:1408)
    at org.eclipse.ui.internal.Workbench.close(Workbench.java:1381)
    at org.eclipse.ui.internal.WorkbenchWindow.busyClose(WorkbenchWindow.java:1556)
    at org.eclipse.ui.internal.WorkbenchWindow.access$15(WorkbenchWindow.java:1527)
    at org.eclipse.ui.internal.WorkbenchWindow$10.run(WorkbenchWindow.java:1592)
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
    at org.eclipse.ui.internal.WorkbenchWindow.close(WorkbenchWindow.java:1589)
    at org.eclipse.ui.internal.WorkbenchWindow.close(WorkbenchWindow.java:1603)
    at org.eclipse.ui.internal.WorkbenchWindow$6.close(WorkbenchWindow.java:521)
    at org.eclipse.e4.ui.workbench.renderers.swt.WBWRenderer$11.shellClosed(WBWRenderer.java:567)
    at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:98)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
    at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4464)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1388)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1412)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1397)
    at org.eclipse.swt.widgets.Shell.closeWidget(Shell.java:649)
    at org.eclipse.swt.widgets.Shell.gtk_delete_event(Shell.java:1263)
    at org.eclipse.swt.widgets.Widget.windowProc(Widget.java:2081)
    at org.eclipse.swt.widgets.Control.windowProc(Control.java:5515)
    at org.eclipse.swt.widgets.Display.windowProc(Display.java:4680)
    at org.eclipse.swt.internal.gtk.OS._gtk_main_do_event(OS.java:-2)
    at org.eclipse.swt.internal.gtk.OS.gtk_main_do_event(OS.java:9137)
    at org.eclipse.swt.widgets.Display.eventProc(Display.java:1253)
    at org.eclipse.swt.internal.gtk.OS._g_main_context_iteration(OS.java:-2)
    at org.eclipse.swt.internal.gtk.OS.g_main_context_iteration(OS.java:2482)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3411)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1151)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1032)
    at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:148)
    at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:637)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:580)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
    at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:141)
    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(NativeMethodAccessorImpl.java:-2)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:648)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:603)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1465)
    at org.eclipse.equinox.launcher.Main.main(Main.java:1438)
   

    

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http://dev.eclipse.org/recommenders/committers/confess/0.5/reports/543e5034e4b0a3790171b427
for the complete error log.


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* Note: The list of present bundles and their respective versions was
  calculated by package naming heuristics. This may or may not reflect reality.
Comment 1 EPP Error Reports CLA 2014-10-15 06:45:08 EDT 
I've looked up the top-3 most similar bug groups and printed the closest bug of
each group below. This report may or may not be duplicate of those (low or sim-
ilar scores for all entries may indicate that this hasn't been reported yet):

>     1. Bug 445402: Problems occurred when invoking code from plug-in: "org.eclipse.ui.workbench". (err_grp: d374e986) – 88,6    
>     2. Bug 446242: Internal Error (err_grp: 9bff470f) – 85,6    
>     3. Bug 447267: [p2,mpc] Problems occurred when invoking code from plug-in: "org.eclipse.ui.workbench". – 83,3    


If this report actually is a duplicate of those, please mark it as such. This
information helps me to improve the recommendations further for the next issue.

Thank you for your assistance.
Your friendly error-reports-inbox.
Comment 2 Pierre-Charles David CLA 2014-10-15 09:23:08 EDT 
It looks like the problem can occur if the provider in question is disposed twice, and should be trivial to avoid with an appropriate guard.