Bug 310908 [Markers] NPE thrown by markers job
I20100426-0852 I had one editor open in my window. It was maximized and opened on an external file. When I closed it, this NPE suddenly appeared. java.lang.NullPointerException at org.eclipse.ui.internal.views.markers.MarkerFieldFilterGroup.loadSettings(MarkerFieldFilterGroup.java:448) at org.eclipse.ui.internal.views.markers.MarkerContentGenerator.loadGroupWithID(MarkerContentGenerator.java:521) at org.eclipse.ui.internal.views.markers.MarkerContentGenerator.loadFilterSettings(MarkerContentGenerator.java:449) at org.eclipse.ui.internal.views.markers.MarkerContentGenerator.loadFiltersFrom(MarkerContentGenerator.java:467) at org.eclipse.ui.internal.views.markers.MarkerContentGenerator.loadFiltersPreference(MarkerContentGenerator.java:479) at org.eclipse.ui.internal.views.markers.MarkerContentGenerator.getAllFilters(MarkerContentGenerator.java:293) at org.eclipse.ui.internal.views.markers.MarkerContentGenerator.getEnabledFilters(MarkerContentGenerator.java:307) at org.eclipse.ui.internal.views.markers.MarkerContentGenerator.getResourcesForBuild(MarkerContentGenerator.java:904) at org.eclipse.ui.internal.views.markers.MarkerContentGenerator.gatherMarkers(MarkerContentGenerator.java:1004) 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:54)
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/views/markers/MarkerFieldFilterGroup.java
MarkerFieldFilter[] filters = getFieldFilters();
		for (int i = 0; i < filters.length; i++) {
			filterMap.put(MarkerSupportInternalUtilities.getId(filters[i]
					.getField()), filters[i]);
		}
		IMemento[] children = memento.getChildren(TAG_FIELD_FILTER_ENTRY);
		for (int i = 0; i < children.length; i++) {
			IMemento childMemento = children[i];
			String id = childMemento.getID();
			if (filterMap.containsKey(id)) {
				MarkerFieldFilter filter = (MarkerFieldFilter) filterMap
						.get(id);
				if (filter instanceof MarkerTypeFieldFilter) {
					((MarkerTypeFieldFilter) filter)
							.setContentGenerator(generator);
				}
				filter.loadSettings(childMemento);
			}
		}
		if (element == null) {
			String nameString = memento
					.getString(MarkerSupportInternalUtilities.ATTRIBUTE_NAME);
			if (nameString != null && nameString.length() > 0)
				name = nameString;
			String idString = memento.getString(IMemento.TAG_ID);
			if (idString != null && idString.length() > 0)
				id = idString;
		}
	}
	/**