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
if (filtersMenu == null) {
			return;
		}
		filtersMenu.removeAll();
		MarkerFilter[] filters = getAllFilters();
		for (int i = 0; i < filters.length; i++) {
			filtersMenu.add(new FilterEnablementAction(filters[i], this));
		}
	}
	/**
	 * Open a filter dialog on the receiver.
	 */
	protected abstract DialogMarkerFilter createFiltersDialog();
	/**
	 * Given a selection of IMarker, reveals the corresponding elements in the
	 * viewer
	 * 
	 * @param structuredSelection
	 * @param reveal
	 */
	public void setSelection(IStructuredSelection structuredSelection,
			boolean reveal) {
		TreeViewer viewer = getViewer();
		List newSelection = new ArrayList(structuredSelection.size());
		for (Iterator i = structuredSelection.iterator(); i.hasNext();) {
			Object next = i.next();
			if (next instanceof IMarker) {
				ConcreteMarker marker = getCurrentMarkers().getMarker(
						(IMarker) next);
				if (marker != null) {