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/MarkerAdapter.java
class MarkerCategory extends MarkerNode {
		MarkerAdapter markerAdapter;
		int start;
		int end;
		private ConcreteMarker[] children;
		private String name;
		/**
		 * Create a new instance of the receiver that has the markers between
		 * startIndex and endIndex showing.
		 * 
		 * @param adapter
		 * @param startIndex
		 * @param endIndex
		 */
		MarkerCategory(MarkerAdapter adapter, int startIndex, int endIndex,
				String categoryName) {
			markerAdapter = adapter;