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
* Save the settings for the receiver in the memento.
	 * 
	 * @param memento
	 */
	void saveFilterSettings(IMemento memento) {
		memento.putString(TAG_ENABLED, String.valueOf(enabled));
		memento.putString(TAG_SCOPE, String.valueOf(scope));
		if (workingSet != null) {
			memento.putString(TAG_WORKING_SET, workingSet.getName());
		}
		if (element == null) {
			memento.putString(MarkerSupportInternalUtilities.ATTRIBUTE_NAME,
					getName());
			memento.putString(IMemento.TAG_ID, getID());
		}
		MarkerFieldFilter[] filters = getFieldFilters();
		for (int i = 0; i < filters.length; i++) {
			IMemento child = memento
					.createChild(TAG_FIELD_FILTER_ENTRY,
							MarkerSupportInternalUtilities.getId(filters[i]
									.getField()));
			filters[i].saveSettings(child);
		}
	}
	/**
	 * Return whether or not this IMarker is being shown.
	 * 
	 * @param marker
	 * @return <code>true</code> if it is being shown
	 */