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
Collection enabledFilters = getEnabledFilters();
			IResource[] resources = getSelectedResources();
			boolean andFilters = andFilters();
			if (enabledFilters.size() > 0) {
				Iterator filtersIterator = enabledFilters.iterator();
				if (andFilters) {
					while (filtersIterator.hasNext()) {
						MarkerFieldFilterGroup group = (MarkerFieldFilterGroup) filtersIterator
								.next();
						if (!group.selectByScope(entry, resources)
								|| !group.selectByFilters(entry)) {
							return false;
						}
					}
					return true;
				}
				while (filtersIterator.hasNext()) {
					MarkerFieldFilterGroup group = (MarkerFieldFilterGroup) filtersIterator
							.next();
					if (group.selectByScope(entry, resources)
							&& group.selectByFilters(entry)) {
						return true;
					}
				}
				return false;
			}
			return true;
		} finally {
			entry.clearCache();
		}