Bug 320791 NPE on workbench shutdown
This happens for me on rc3 when shuting down: java.lang.NullPointerException at org.eclipse.e4.ui.internal.workbench.SelectionServiceImpl.notifyListeners(SelectionServiceImpl.java:192) at org.eclipse.e4.ui.internal.workbench.SelectionServiceImpl.access$3(SelectionServiceImpl.java:191) at org.eclipse.e4.ui.internal.workbench.SelectionServiceImpl$2.changed(SelectionServiceImpl.java:230) at org.eclipse.e4.core.internal.contexts.TrackableComputationExt.update(TrackableComputationExt.java:95) at org.eclipse.e4.core.internal.contexts.EclipseContext.processScheduled(EclipseContext.java:333) at org.eclipse.e4.core.internal.contexts.EclipseContext.set(EclipseContext.java:350) at org.eclipse.e4.ui.internal.workbench.swt.ShellActivationListener$2.run(ShellActivationListener.java:127) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.e4.ui.internal.workbench.swt.ShellActivationListener.activate(ShellActivationListener.java:124) at org.eclipse.e4.ui.internal.workbench.swt.ShellActivationListener.handleEvent(ShellActivationListener.java:74)
bundles/org.eclipse.e4.ui.workbench/src/org/eclipse/e4/ui/internal/workbench/SelectionServiceImpl.java
}
		}
	}
	private void track(final MPart part) {
		IEclipseContext context = part.getContext();
		if (context != null && tracked.add(context)) {
			context.runAndTrack(new RunAndTrack() {
				private boolean initial = true;
				public boolean changed(IEclipseContext context) {
					Object selection = context.get(OUT_SELECTION);
					if (initial) {
						initial = false;
						if (selection == null) {
							return true;
						}
					}
					if (activePart == part) {
						notifyListeners(part, selection);
					} else {
						notifyTargetedListeners(part, selection);
					}
					return true;
				}
			});
		}
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.e4.ui.selection.ESelectionService#setSelection(java.lang.Object)