Bug 213014 [Markers] New view doesn't rank fatal errors first any longer when sorting per Java type
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/MarkerGroup.java
id = element.getAttribute(MarkerSupportConstants.ATTRIBUTE_ID);
		createFields();
	}
	/**
	 * Create the fields for the marker views.
	 */
	protected void createFields() {
		field = new FieldGroup(this);
		markerField = new GroupMarkerField(this);
	}
	/**
	 * Add the entry for the markerType.
	 * 
	 * @param markerType
	 * @param entry
	 */
	private void addEntry(String markerType, EntryMapping entry) {
		MarkerType[] allDerived = getMarkerTypes(markerType);
		for (int i = 0; i < allDerived.length; i++) {
			Collection entries = new HashSet();
			MarkerType type = allDerived[i];
			if (typesToMappings.containsKey(type.getId())) {
				entries = (Collection) typesToMappings.get(markerType);
			} else {
				entries = new HashSet();
			}
			entries.add(entry);
			typesToMappings.put(type.getId(), entries);
		}
	}