Description Olivier Thomann 2007-02-13 11:13:18 EST

eclipse.buildId=I20070209-1006
java.version=1.6.0_01-ea
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=fr_CA
Framework arguments:  -launcher D:\eclipse\I0209\eclipse\eclipse.exe -name Eclipse -startup D:\eclipse\I0209\eclipse\plugins\org.eclipse.equinox.launcher_1.0.0.v20070208a.jar -showlocation
Command-line arguments:  -os win32 -ws win32 -arch x86 -launcher D:\eclipse\I0209\eclipse\eclipse.exe -name Eclipse -startup D:\eclipse\I0209\eclipse\plugins\org.eclipse.equinox.launcher_1.0.0.v20070208a.jar -debug -consolelog -console -showlocation

Steps to reproduce:
1) Start Eclipse
2) JRE 1.4 points to a JRE that is used in one of your project
3) While Eclipse is running, replace the JRE container 1.4 to point to a new location. You update this in the Java>Installed JREs panel.
4) Go to your project and try to open it.
5) The project appears to be empty and the exception below is thrown.

Even if this is not a user case that we might encourage, we should be more resilient to errors.

java.lang.NullPointerException
at org.eclipse.jdt.internal.ui.packageview.PackageExplorerContentProvider.getPackageFragmentRoots(PackageExplorerContentProvider.java:291)
at org.eclipse.jdt.ui.StandardJavaElementContentProvider.getChildren(StandardJavaElementContentProvider.java:178)
at org.eclipse.jdt.internal.ui.packageview.PackageExplorerContentProvider.getChildren(PackageExplorerContentProvider.java:270)
at org.eclipse.jface.viewers.AbstractTreeViewer.getRawChildren(AbstractTreeViewer.java:1283)
at org.eclipse.jface.viewers.TreeViewer.getRawChildren(TreeViewer.java:394)
at org.eclipse.jdt.internal.ui.viewsupport.ProblemTreeViewer.getFilteredChildren(ProblemTreeViewer.java:205)
at org.eclipse.jface.viewers.AbstractTreeViewer.getSortedChildren(AbstractTreeViewer.java:580)
at org.eclipse.jface.viewers.AbstractTreeViewer$1.run(AbstractTreeViewer.java:774)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67)
at org.eclipse.jface.viewers.AbstractTreeViewer.createChildren(AbstractTreeViewer.java:751)
at org.eclipse.jface.viewers.TreeViewer.createChildren(TreeViewer.java:526)
at org.eclipse.jface.viewers.AbstractTreeViewer.setExpandedState(AbstractTreeViewer.java:2311)
at org.eclipse.jdt.internal.ui.packageview.PackageExplorerActionGroup.handleDoubleClick(PackageExplorerActionGroup.java:301)
at org.eclipse.jdt.internal.ui.packageview.PackageExplorerPart$4.doubleClick(PackageExplorerPart.java:578)
at org.eclipse.jface.viewers.StructuredViewer$1.run(StructuredViewer.java:798)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
at org.eclipse.core.runtime.Platform.run(Platform.java:850)
at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:52)
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:153)
at org.eclipse.jface.viewers.StructuredViewer.fireDoubleClick(StructuredViewer.java:796)
at org.eclipse.jface.viewers.AbstractTreeViewer.handleDoubleSelect(AbstractTreeViewer.java:1347)
at org.eclipse.jface.viewers.StructuredViewer$4.widgetDefaultSelected(StructuredViewer.java:1167)
at org.eclipse.jface.util.OpenStrategy.fireDefaultSelectionEvent(OpenStrategy.java:237)
at org.eclipse.jface.util.OpenStrategy.access$0(OpenStrategy.java:234)
at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:295)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:938)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3490)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3104)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2264)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2228)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2103)
at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:457)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:289)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:452)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:101)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:146)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:106)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:76)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:354)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:169)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:476)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:416)
at org.eclipse.equinox.launcher.Main.run(Main.java:1124)
at org.eclipse.equinox.launcher.Main.main(Main.java:1099)