Bug 300032 [Markers] NPE in MarkerFieldFilterGroup.selectByScope
I20100115-1100 I had a Java editor open and dirty. The Problems view was NOT visible (topmost in that view stack was Progress). I pressed 'Alt+Shift+W, P, Return' to reveal the file in the Package Explorer. The stored file had no compile problems, but the the working copy in the editor had a problem which I fixed shortly before I started the Show In action. java.lang.NullPointerException at org.eclipse.ui.internal.views.markers.MarkerFieldFilterGroup.selectByScope(MarkerFieldFilterGroup.java:693) at org.eclipse.ui.internal.views.markers.MarkerContentGenerator.select(MarkerContentGenerator.java:781) at org.eclipse.ui.internal.views.markers.MarkerContentGenerator.internalGatherMarkers(MarkerContentGenerator.java:1073) at org.eclipse.ui.internal.views.markers.MarkerContentGenerator.gatherMarkers(MarkerContentGenerator.java:1013) at org.eclipse.ui.internal.views.markers.MarkerContentGenerator.generateMarkerEntries(MarkerContentGenerator.java:991) at org.eclipse.ui.internal.views.markers.MarkerUpdateJob.clean(MarkerUpdateJob.java:117) at org.eclipse.ui.internal.views.markers.MarkerUpdateJob.buildMarkers(MarkerUpdateJob.java:77) at org.eclipse.ui.internal.views.markers.MarkerUpdateJob.run(MarkerUpdateJob.java:57) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/views/markers/MarkerContentGenerator.java
* 
	 * @param and
	 */
	void setAndFilters(boolean and) {
		andFilters = and;
	}
	/**
	 * Return whether the filters are being ANDed or ORed.
	 * 
	 * @return boolean
	 */
	boolean andFilters() {
		return andFilters;
	}
	/**
	 * @return Collection of declared MarkerFieldFilterGroup(s)
	 */
	Collection getDeclaredFilters() {
		List filters = new ArrayList();
		IConfigurationElement[] filterReferences = generatorDescriptor.getFilterReferences();
		for (int i = 0; i < filterReferences.length; i++) {
			filters.add(new MarkerFieldFilterGroup(filterReferences[i], this));
		}
		
		if (viewId != null && viewId.equals(IPageLayout.ID_PROBLEM_VIEW)) {
			Iterator problemFilters = MarkerSupportRegistry.getInstance()
					.getRegisteredFilters().iterator();
			while (problemFilters.hasNext())
				filters.add(new CompatibilityMarkerFieldFilterGroup(
						(ProblemFilter) problemFilters.next(), this));