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
private NavigatorContentService contentService;
	private static List instances = new ArrayList();
	/**
	 * @param contentService
	 */
	public NavigatorSaveablesService(NavigatorContentService contentService) {
		this.contentService = contentService;
	}
	private static void addInstance(NavigatorSaveablesService saveablesService) {
		synchronized (instances) {
			instances.add(saveablesService);
		}
	}
	private static void removeInstance(
			NavigatorSaveablesService saveablesService) {
		synchronized (instances) {
			instances.remove(saveablesService);