Bug 176986 [Markers] Move tasks into the problems view
We should consider moving the tasks into the problem view as currently no one is using them in the tasks view. The main issue this could create is performance - problems change rapidly but tasks are generally pretty static and it may be a fair amount of extra time spent sorting them.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/MarkerSupportRegistry.java
MarkerGroupingEntry next = (MarkerGroupingEntry) nextEntriesIterator
							.next();
					IDEWorkbenchPlugin
							.log(NLS
									.bind(
											"markerGroupingEntry {0} defines invalid group {1}",
											new String[] { next.getId(),
													nextGroupId }));
				}
			}
		}
	}
	/**
	 * Process the attribute mappings into thier required grouping entries.
	 * 
	 * @param entryIDsToEntries
	 * @param attributeMappings
	 */
	private void processAttributeMappings(Map entryIDsToEntries,
			Collection attributeMappings) {
		Iterator mappingsIterator = attributeMappings.iterator();
		while (mappingsIterator.hasNext()) {
			AttributeMarkerGrouping attributeGrouping = (AttributeMarkerGrouping) mappingsIterator
					.next();
			String defaultEntryId = attributeGrouping.getDefaultGroupingEntry();
			if (defaultEntryId != null) {
				if (entryIDsToEntries.containsKey(defaultEntryId)) {
					MarkerGroupingEntry entry = (MarkerGroupingEntry) entryIDsToEntries
							.get(defaultEntryId);
					entry.setAsDefault(attributeGrouping.getMarkerType());