Bug 175181 NavigatorSaveablesServices NPEs on shutdown
The following exception was encountered on shutdown the applicaiton. It happend on Linux(SuSE Linux Enterprise 9, PatchLevel: 3). It's very similar to defect: 142785. !ENTRY org.eclipse.osgi 4 0 2006-05-19 11:21:38.993 !MESSAGE An unexpected runtime error has occurred. !STACK 0 java.lang.NullPointerException at org.eclipse.ui.internal.navigator.NavigatorSaveablesService.computeSaveables(NavigatorSaveablesService.java:216) at org.eclipse.ui.internal.navigator.NavigatorSaveablesService.recomputeSaveablesAndNotify(NavigatorSaveablesService.java:374) at org.eclipse.ui.internal.navigator.NavigatorSaveablesService.handleBundleStopped(NavigatorSaveablesService.java:457) at org.eclipse.ui.internal.navigator.NavigatorSaveablesService.bundleChanged(NavigatorSaveablesService.java:100) at org.eclipse.ui.internal.navigator.NavigatorPlugin$1.bundleChanged(NavigatorPlugin.java:35) at org.eclipse.osgi.framework.internal.core.BundleContextImpl.dispatchEvent(BundleContextImpl.java:1206) at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:189) at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:291) 11
bundles/org.eclipse.ui.navigator/src/org/eclipse/ui/internal/navigator/NavigatorSaveablesService.java
return getActiveSaveablesFromTreeProvider(selection, contentProvider);
		}
	}
	
	/**
	 * @param selection
	 * @return the active saveables
	 */
	private Saveable[] getActiveSaveablesFromTreeSelection(
			ITreeSelection selection) {
		Set result = new HashSet();
		TreePath[] paths = selection.getPaths();
		for (int i = 0; i < paths.length; i++) {
			TreePath path = paths[i];
			Saveable saveable = findSaveable(path);
			if (saveable != null) {
				result.add(saveable);
			}
		}
		return (Saveable[]) result.toArray(new Saveable[result.size()]);
	}
	/**
	 * @param selection
	 * @param provider
	 * @return the active saveables
	 */
	private Saveable[] getActiveSaveablesFromTreePathProvider(
			IStructuredSelection selection, ITreePathContentProvider provider) {
		Set result = new HashSet();
		for (Iterator it = selection.iterator(); it.hasNext();) {