Bug 178394 NPE in marker adapter buildAll markers
This shows up occasionally in the test suite logs. Probably happening during shutdown !STACK 0 java.lang.NullPointerException at org.eclipse.ui.views.markers.internal.MarkerAdapter.buildAllMarkers(MarkerAdapter.java:262) at org.eclipse.ui.views.markers.internal.MarkerView.updateForContentsRefresh(MarkerView.java:570) at org.eclipse.ui.views.markers.internal.MarkerView$MarkerProcessJob.run(MarkerView.java:151) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:58)
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/MarkerView.java
private static final String TAG_SELECTION = "selection"; 
	private static final String TAG_MARKER = "marker"; 
	private static final String TAG_RESOURCE = "resource"; 
	private static final String TAG_ID = "id"; 
	private static final String TAG_FILTERS_SECTION = "filters"; 
	private static final String TAG_FILTER_ENTRY = "filter"; 
	private static final String MENU_FILTERS_GROUP = "group.filter";
	private static final String MENU_SHOW_IN_GROUP = "group.showIn";
	
	private static final String OLD_FILTER_SECTION = "filter"; 
	static final Object MARKER_UPDATE_FAMILY = new Object();
	class MarkerProcessJob extends Job {
		/**
		 * Create a new instance of the receiver.
		 */
		MarkerProcessJob() {
			super(MarkerMessages.MarkerView_processUpdates);
			setSystem(true);