Bug 214648 [Markers] AttributeMarkerGroupings and GroupingEntries not being cleaned up on removal
We are still leaving the references to AttributeMarkerGroupings and GroupingEntries when we unload
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/MarkerSupportRegistry.java
} else {
			filter.setSelectBySeverity(false);
		}
		List selectedTypes = new ArrayList();
		IConfigurationElement[] types = element.getChildren(SELECTED_TYPE);
		for (int j = 0; j < types.length; j++) {
			String markerId = types[j].getAttribute(MARKER_ID);
			if (markerId != null) {
				MarkerType type = filter.getMarkerType(markerId);
				if (type == null) {
					IStatus status = new Status(
							IStatus.WARNING,
							IDEWorkbenchPlugin.IDE_WORKBENCH,
							IStatus.WARNING,
							NLS
									.bind(
											MarkerMessages.ProblemFilterRegistry_nullType,
											new Object[] { markerId,
													filter.getName() }), null);
					IDEWorkbenchPlugin.getDefault().getLog().log(status);
				} else {
					selectedTypes.add(type);
				}
			}
		}
		if (selectedTypes.size() > 0) {
			
			filter.setSelectedTypes(selectedTypes);
		}
		return filter;