[jbosstools-issues] [JBoss JIRA] (JBIDE-21588) NPEs when browsing through java ee project tree
Jeff MAURY (JIRA)
issues at jboss.org
Wed Apr 18 12:13:51 EDT 2018
[ https://issues.jboss.org/browse/JBIDE-21588?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jeff MAURY updated JBIDE-21588:
-------------------------------
Fix Version/s: 4.6.x
(was: 4.5.x)
> NPEs when browsing through java ee project tree
> -----------------------------------------------
>
> Key: JBIDE-21588
> URL: https://issues.jboss.org/browse/JBIDE-21588
> Project: Tools (JBoss Tools)
> Issue Type: Bug
> Components: upstream
> Affects Versions: 4.3.1.Beta2
> Reporter: Martin Malina
> Assignee: Snjezana Peco
> Fix For: 4.6.x
>
>
> I came across this while testing JBIDE-20802 .
> When I create the kitchensink project from JBoss Central and then click around in the Project Explorer, I will get errors in the error view and workspace log:
> {code}
> !ENTRY org.eclipse.ui.navigator 4 2 2016-01-27 11:50:47.557
> !MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.ui.navigator".
> !STACK 0
> java.lang.NullPointerException
> at org.eclipse.jpt.common.ui.internal.jface.ItemTreeStateProviderManager.getChildren(ItemTreeStateProviderManager.java:74)
> at org.eclipse.jpt.common.ui.internal.navigator.NavigatorContentProvider.getChildren(NavigatorContentProvider.java:109)
> at org.eclipse.ui.internal.navigator.extensions.SafeDelegateTreeContentProvider.getChildren(SafeDelegateTreeContentProvider.java:95)
> at org.eclipse.ui.internal.navigator.extensions.SafeDelegateTreeContentProvider.getChildren(SafeDelegateTreeContentProvider.java:241)
> at org.eclipse.ui.internal.navigator.extensions.SafeDelegateTreeContentProvider.getChildren(SafeDelegateTreeContentProvider.java:93)
> at org.eclipse.ui.internal.navigator.NavigatorContentServiceContentProvider$1.run(NavigatorContentServiceContentProvider.java:157)
> at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
> at org.eclipse.ui.internal.navigator.NavigatorContentServiceContentProvider.internalGetChildren(NavigatorContentServiceContentProvider.java:143)
> at org.eclipse.ui.internal.navigator.NavigatorContentServiceContentProvider.getChildren(NavigatorContentServiceContentProvider.java:129)
> at org.eclipse.jface.viewers.AbstractTreeViewer.getRawChildren(AbstractTreeViewer.java:1365)
> at org.eclipse.jface.viewers.TreeViewer.getRawChildren(TreeViewer.java:353)
> at org.eclipse.jface.viewers.StructuredViewer.getFilteredChildren(StructuredViewer.java:906)
> at org.eclipse.jface.viewers.AbstractTreeViewer.getSortedChildren(AbstractTreeViewer.java:617)
> at org.eclipse.jface.viewers.AbstractTreeViewer$1.run(AbstractTreeViewer.java:813)
> at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
> at org.eclipse.jface.viewers.AbstractTreeViewer.createChildren(AbstractTreeViewer.java:791)
> at org.eclipse.jface.viewers.TreeViewer.createChildren(TreeViewer.java:611)
> at org.eclipse.jface.viewers.AbstractTreeViewer.createChildren(AbstractTreeViewer.java:762)
> at org.eclipse.jface.viewers.AbstractTreeViewer.handleTreeExpand(AbstractTreeViewer.java:1493)
> at org.eclipse.jface.viewers.TreeViewer.handleTreeExpand(TreeViewer.java:903)
> at org.eclipse.jface.viewers.AbstractTreeViewer$4.treeExpanded(AbstractTreeViewer.java:1505)
> at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:132)
> at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
> at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4230)
> at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1491)
> at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1514)
> at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1499)
> at org.eclipse.swt.widgets.TreeItem.sendExpand(TreeItem.java:1036)
> at org.eclipse.swt.widgets.Tree.expandItem_expandChildren(Tree.java:1256)
> at org.eclipse.swt.widgets.Display.windowProc(Display.java:5955)
> at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
> at org.eclipse.swt.widgets.Widget.callSuper(Widget.java:227)
> at org.eclipse.swt.widgets.Widget.mouseDownSuper(Widget.java:1121)
> at org.eclipse.swt.widgets.Tree.mouseDownSuper(Tree.java:2047)
> at org.eclipse.swt.widgets.Widget.mouseDown(Widget.java:1113)
> at org.eclipse.swt.widgets.Control.mouseDown(Control.java:2569)
> at org.eclipse.swt.widgets.Tree.mouseDown(Tree.java:2015)
> at org.eclipse.swt.widgets.Display.windowProc(Display.java:5692)
> at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
> at org.eclipse.swt.widgets.Widget.callSuper(Widget.java:227)
> at org.eclipse.swt.widgets.Widget.windowSendEvent(Widget.java:2130)
> at org.eclipse.swt.widgets.Shell.windowSendEvent(Shell.java:2337)
> at org.eclipse.swt.widgets.Display.windowProc(Display.java:5756)
> at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
> at org.eclipse.swt.widgets.Display.applicationSendEvent(Display.java:5193)
> at org.eclipse.swt.widgets.Display.applicationProc(Display.java:5342)
> at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)
> at org.eclipse.swt.internal.cocoa.NSApplication.sendEvent(NSApplication.java:128)
> at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3695)
> 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:654)
> at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
> at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:598)
> 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:497)
> 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)
> !ENTRY org.eclipse.ui.navigator 4 0 2016-01-27 11:50:47.641
> !MESSAGE An exception occurred invoking extension: org.eclipse.jpt.jpa.ui.jpaNavigatorContent for object org.jboss.tools.jsf.model.pv.JSFProjectTagLibs at 1ffae821
> !STACK 0
> java.lang.NullPointerException
> at org.eclipse.jpt.common.ui.internal.jface.ItemTreeStateProviderManager.getChildren(ItemTreeStateProviderManager.java:74)
> at org.eclipse.jpt.common.ui.internal.navigator.NavigatorContentProvider.getChildren(NavigatorContentProvider.java:109)
> at org.eclipse.ui.internal.navigator.extensions.SafeDelegateTreeContentProvider.getChildren(SafeDelegateTreeContentProvider.java:95)
> at org.eclipse.ui.internal.navigator.extensions.SafeDelegateTreeContentProvider.getChildren(SafeDelegateTreeContentProvider.java:241)
> at org.eclipse.ui.internal.navigator.extensions.SafeDelegateTreeContentProvider.getChildren(SafeDelegateTreeContentProvider.java:93)
> at org.eclipse.ui.internal.navigator.NavigatorContentServiceContentProvider$1.run(NavigatorContentServiceContentProvider.java:157)
> at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
> at org.eclipse.ui.internal.navigator.NavigatorContentServiceContentProvider.internalGetChildren(NavigatorContentServiceContentProvider.java:143)
> at org.eclipse.ui.internal.navigator.NavigatorContentServiceContentProvider.getChildren(NavigatorContentServiceContentProvider.java:129)
> at org.eclipse.jface.viewers.AbstractTreeViewer.getRawChildren(AbstractTreeViewer.java:1365)
> at org.eclipse.jface.viewers.TreeViewer.getRawChildren(TreeViewer.java:353)
> at org.eclipse.jface.viewers.StructuredViewer.getFilteredChildren(StructuredViewer.java:906)
> at org.eclipse.jface.viewers.AbstractTreeViewer.getSortedChildren(AbstractTreeViewer.java:617)
> at org.eclipse.jface.viewers.AbstractTreeViewer$1.run(AbstractTreeViewer.java:813)
> at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
> at org.eclipse.jface.viewers.AbstractTreeViewer.createChildren(AbstractTreeViewer.java:791)
> at org.eclipse.jface.viewers.TreeViewer.createChildren(TreeViewer.java:611)
> at org.eclipse.jface.viewers.AbstractTreeViewer.createChildren(AbstractTreeViewer.java:762)
> at org.eclipse.jface.viewers.AbstractTreeViewer.handleTreeExpand(AbstractTreeViewer.java:1493)
> at org.eclipse.jface.viewers.TreeViewer.handleTreeExpand(TreeViewer.java:903)
> at org.eclipse.jface.viewers.AbstractTreeViewer$4.treeExpanded(AbstractTreeViewer.java:1505)
> at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:132)
> at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
> at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4230)
> at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1491)
> at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1514)
> at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1499)
> at org.eclipse.swt.widgets.TreeItem.sendExpand(TreeItem.java:1036)
> at org.eclipse.swt.widgets.Tree.expandItem_expandChildren(Tree.java:1256)
> at org.eclipse.swt.widgets.Display.windowProc(Display.java:5955)
> at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
> at org.eclipse.swt.widgets.Widget.callSuper(Widget.java:227)
> at org.eclipse.swt.widgets.Widget.mouseDownSuper(Widget.java:1121)
> at org.eclipse.swt.widgets.Tree.mouseDownSuper(Tree.java:2047)
> at org.eclipse.swt.widgets.Widget.mouseDown(Widget.java:1113)
> at org.eclipse.swt.widgets.Control.mouseDown(Control.java:2569)
> at org.eclipse.swt.widgets.Tree.mouseDown(Tree.java:2015)
> at org.eclipse.swt.widgets.Display.windowProc(Display.java:5692)
> at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
> at org.eclipse.swt.widgets.Widget.callSuper(Widget.java:227)
> at org.eclipse.swt.widgets.Widget.windowSendEvent(Widget.java:2130)
> at org.eclipse.swt.widgets.Shell.windowSendEvent(Shell.java:2337)
> at org.eclipse.swt.widgets.Display.windowProc(Display.java:5756)
> at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
> at org.eclipse.swt.widgets.Display.applicationSendEvent(Display.java:5193)
> at org.eclipse.swt.widgets.Display.applicationProc(Display.java:5342)
> at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)
> at org.eclipse.swt.internal.cocoa.NSApplication.sendEvent(NSApplication.java:128)
> at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3695)
> 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:654)
> at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
> at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:598)
> 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:497)
> 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)
> !ENTRY org.eclipse.ui.navigator 4 2 2016-01-27 11:50:48.667
> !MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.ui.navigator".
> !STACK 0
> java.lang.NullPointerException
> at org.eclipse.jpt.common.ui.internal.jface.ItemTreeStateProviderManager.getChildren(ItemTreeStateProviderManager.java:74)
> at org.eclipse.jpt.common.ui.internal.navigator.NavigatorContentProvider.getChildren(NavigatorContentProvider.java:109)
> at org.eclipse.ui.internal.navigator.extensions.SafeDelegateTreeContentProvider.getChildren(SafeDelegateTreeContentProvider.java:95)
> at org.eclipse.ui.internal.navigator.extensions.SafeDelegateTreeContentProvider.getChildren(SafeDelegateTreeContentProvider.java:241)
> at org.eclipse.ui.internal.navigator.extensions.SafeDelegateTreeContentProvider.getChildren(SafeDelegateTreeContentProvider.java:93)
> at org.eclipse.ui.internal.navigator.NavigatorContentServiceContentProvider$1.run(NavigatorContentServiceContentProvider.java:157)
> at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
> at org.eclipse.ui.internal.navigator.NavigatorContentServiceContentProvider.internalGetChildren(NavigatorContentServiceContentProvider.java:143)
> at org.eclipse.ui.internal.navigator.NavigatorContentServiceContentProvider.getChildren(NavigatorContentServiceContentProvider.java:129)
> at org.eclipse.jface.viewers.AbstractTreeViewer.getRawChildren(AbstractTreeViewer.java:1365)
> at org.eclipse.jface.viewers.TreeViewer.getRawChildren(TreeViewer.java:353)
> at org.eclipse.jface.viewers.StructuredViewer.getFilteredChildren(StructuredViewer.java:906)
> at org.eclipse.jface.viewers.AbstractTreeViewer.getSortedChildren(AbstractTreeViewer.java:617)
> at org.eclipse.jface.viewers.AbstractTreeViewer$1.run(AbstractTreeViewer.java:813)
> at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
> at org.eclipse.jface.viewers.AbstractTreeViewer.createChildren(AbstractTreeViewer.java:791)
> at org.eclipse.jface.viewers.TreeViewer.createChildren(TreeViewer.java:611)
> at org.eclipse.jface.viewers.AbstractTreeViewer.createChildren(AbstractTreeViewer.java:762)
> at org.eclipse.jface.viewers.AbstractTreeViewer.handleTreeExpand(AbstractTreeViewer.java:1493)
> at org.eclipse.jface.viewers.TreeViewer.handleTreeExpand(TreeViewer.java:903)
> at org.eclipse.jface.viewers.AbstractTreeViewer$4.treeExpanded(AbstractTreeViewer.java:1505)
> at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:132)
> at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
> at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4230)
> at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1491)
> at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1514)
> at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1499)
> at org.eclipse.swt.widgets.TreeItem.sendExpand(TreeItem.java:1036)
> at org.eclipse.swt.widgets.Tree.expandItem_expandChildren(Tree.java:1256)
> at org.eclipse.swt.widgets.Display.windowProc(Display.java:5955)
> at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
> at org.eclipse.swt.widgets.Widget.callSuper(Widget.java:227)
> at org.eclipse.swt.widgets.Widget.mouseDownSuper(Widget.java:1121)
> at org.eclipse.swt.widgets.Tree.mouseDownSuper(Tree.java:2047)
> at org.eclipse.swt.widgets.Widget.mouseDown(Widget.java:1113)
> at org.eclipse.swt.widgets.Control.mouseDown(Control.java:2569)
> at org.eclipse.swt.widgets.Tree.mouseDown(Tree.java:2015)
> at org.eclipse.swt.widgets.Display.windowProc(Display.java:5692)
> at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
> at org.eclipse.swt.widgets.Widget.callSuper(Widget.java:227)
> at org.eclipse.swt.widgets.Widget.windowSendEvent(Widget.java:2130)
> at org.eclipse.swt.widgets.Shell.windowSendEvent(Shell.java:2337)
> at org.eclipse.swt.widgets.Display.windowProc(Display.java:5756)
> at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
> at org.eclipse.swt.widgets.Display.applicationSendEvent(Display.java:5193)
> at org.eclipse.swt.widgets.Display.applicationProc(Display.java:5342)
> at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)
> at org.eclipse.swt.internal.cocoa.NSApplication.sendEvent(NSApplication.java:128)
> at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3695)
> 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:654)
> at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
> at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:598)
> 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:497)
> 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)
> !ENTRY org.eclipse.ui.navigator 4 0 2016-01-27 11:50:48.670
> !MESSAGE An exception occurred invoking extension: org.eclipse.jpt.jpa.ui.jpaNavigatorContent for object org.eclipse.jst.jee.ui.internal.navigator.web.WebAppProvider at 35754437
> !STACK 0
> java.lang.NullPointerException
> at org.eclipse.jpt.common.ui.internal.jface.ItemTreeStateProviderManager.getChildren(ItemTreeStateProviderManager.java:74)
> at org.eclipse.jpt.common.ui.internal.navigator.NavigatorContentProvider.getChildren(NavigatorContentProvider.java:109)
> at org.eclipse.ui.internal.navigator.extensions.SafeDelegateTreeContentProvider.getChildren(SafeDelegateTreeContentProvider.java:95)
> at org.eclipse.ui.internal.navigator.extensions.SafeDelegateTreeContentProvider.getChildren(SafeDelegateTreeContentProvider.java:241)
> at org.eclipse.ui.internal.navigator.extensions.SafeDelegateTreeContentProvider.getChildren(SafeDelegateTreeContentProvider.java:93)
> at org.eclipse.ui.internal.navigator.NavigatorContentServiceContentProvider$1.run(NavigatorContentServiceContentProvider.java:157)
> at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
> at org.eclipse.ui.internal.navigator.NavigatorContentServiceContentProvider.internalGetChildren(NavigatorContentServiceContentProvider.java:143)
> at org.eclipse.ui.internal.navigator.NavigatorContentServiceContentProvider.getChildren(NavigatorContentServiceContentProvider.java:129)
> at org.eclipse.jface.viewers.AbstractTreeViewer.getRawChildren(AbstractTreeViewer.java:1365)
> at org.eclipse.jface.viewers.TreeViewer.getRawChildren(TreeViewer.java:353)
> at org.eclipse.jface.viewers.StructuredViewer.getFilteredChildren(StructuredViewer.java:906)
> at org.eclipse.jface.viewers.AbstractTreeViewer.getSortedChildren(AbstractTreeViewer.java:617)
> at org.eclipse.jface.viewers.AbstractTreeViewer$1.run(AbstractTreeViewer.java:813)
> at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
> at org.eclipse.jface.viewers.AbstractTreeViewer.createChildren(AbstractTreeViewer.java:791)
> at org.eclipse.jface.viewers.TreeViewer.createChildren(TreeViewer.java:611)
> at org.eclipse.jface.viewers.AbstractTreeViewer.createChildren(AbstractTreeViewer.java:762)
> at org.eclipse.jface.viewers.AbstractTreeViewer.handleTreeExpand(AbstractTreeViewer.java:1493)
> at org.eclipse.jface.viewers.TreeViewer.handleTreeExpand(TreeViewer.java:903)
> at org.eclipse.jface.viewers.AbstractTreeViewer$4.treeExpanded(AbstractTreeViewer.java:1505)
> at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:132)
> at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
> at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4230)
> at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1491)
> at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1514)
> at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1499)
> at org.eclipse.swt.widgets.TreeItem.sendExpand(TreeItem.java:1036)
> at org.eclipse.swt.widgets.Tree.expandItem_expandChildren(Tree.java:1256)
> at org.eclipse.swt.widgets.Display.windowProc(Display.java:5955)
> at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
> at org.eclipse.swt.widgets.Widget.callSuper(Widget.java:227)
> at org.eclipse.swt.widgets.Widget.mouseDownSuper(Widget.java:1121)
> at org.eclipse.swt.widgets.Tree.mouseDownSuper(Tree.java:2047)
> at org.eclipse.swt.widgets.Widget.mouseDown(Widget.java:1113)
> at org.eclipse.swt.widgets.Control.mouseDown(Control.java:2569)
> at org.eclipse.swt.widgets.Tree.mouseDown(Tree.java:2015)
> at org.eclipse.swt.widgets.Display.windowProc(Display.java:5692)
> at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
> at org.eclipse.swt.widgets.Widget.callSuper(Widget.java:227)
> at org.eclipse.swt.widgets.Widget.windowSendEvent(Widget.java:2130)
> at org.eclipse.swt.widgets.Shell.windowSendEvent(Shell.java:2337)
> at org.eclipse.swt.widgets.Display.windowProc(Display.java:5756)
> at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
> at org.eclipse.swt.widgets.Display.applicationSendEvent(Display.java:5193)
> at org.eclipse.swt.widgets.Display.applicationProc(Display.java:5342)
> at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)
> at org.eclipse.swt.internal.cocoa.NSApplication.sendEvent(NSApplication.java:128)
> at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3695)
> 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:654)
> at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
> at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:598)
> 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:497)
> 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)
> {code}
> This looks like an upstream bug, but somebody needs to check.
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