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
updateJob.removeJobChangeListener(listener);
	}
	/**
	 * Create a listener for working set changes.
	 * 
	 * @return IPropertyChangeListener
	 */
	private IPropertyChangeListener getWorkingSetListener() {
		workingSetListener = new IPropertyChangeListener() {
			/*
			 * (non-Javadoc)
			 * 
			 * @see org.eclipse.jface.util.IPropertyChangeListener#propertyChange(org.eclipse.jface.util.PropertyChangeEvent)
			 */
			public void propertyChange(PropertyChangeEvent event) {
				clearEnabledFilters();
				refreshViewer();
			}
		};
		return workingSetListener;
	}
	/**
	 * Schedule an update of the markers with a delay of time
	 * 
	 * @param time
	 */
	void scheduleMarkerUpdate(int time) {
		markerProcessJob.cancel();
		updateJob.cancel();
		getProgressService().schedule(markerProcessJob, time);