Bug 221521 [Markers] New markers API needs to be pared down
We have too much API in some of the new classes and they can be moved to internals
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/MarkerSupportRegistry.java
}
			if (element.getName().equals(MARKER_GROUPING)) {
				MarkerGroup group = MarkerGroup.createMarkerGroup(element);
				markerGroups.put(group.getId(), group);
				tracker.registerObject(extension, group,
						IExtensionTracker.REF_STRONG);
				continue;
			}
			if (element.getName().equals(MARKER_GROUPING_ENTRY)) {
				MarkerGroupingEntry entry = new MarkerGroupingEntry(element);
				String groupName = element.getAttribute(MARKER_GROUPING);
				Collection entries;
				if (groupIDsToEntries.containsKey(groupName)) {
					entries = (Collection) groupIDsToEntries.get(groupName);
				} else {
					entries = new HashSet();
				}
				entries.add(entry);
				groupIDsToEntries.put(groupName, entries);
				entryIDsToEntries.put(entry.getId(), entry);
				tracker.registerObject(extension, entry,
						IExtensionTracker.REF_STRONG);
				continue;
			}
			if (element.getName().equals(MARKER_ATTRIBUTE_GROUPING)) {
				AttributeMarkerGrouping grouping = new AttributeMarkerGrouping(
						element);
				attributeMappings.add(grouping);
				tracker.registerObject(extension, grouping,
						IExtensionTracker.REF_STRONG);