Bug 214223 [Markers] 'Marker id not found' exceptions from GroupMarkerField#compare(..) in log
I20071218-0800 Log fills up with these during an incremental auto-build. IIRC, the Problems has not been made visible since the last restart. Warning Thu Jan 03 14:22:58 CET 2008 Marker id 4826685 not found. org.eclipse.core.internal.resources.ResourceException: Marker id 4826685 not found. at org.eclipse.core.internal.resources.Marker.checkInfo(Marker.java:56) at org.eclipse.core.internal.resources.Marker.getType(Marker.java:194) at org.eclipse.ui.views.markers.internal.MarkerGroup$GroupMarkerField.compare(MarkerGroup.java:306) at org.eclipse.ui.internal.provisional.views.markers.MarkerComparator.compare(MarkerComparator.java:88) at java.util.Arrays.mergeSort(Arrays.java:1293) at java.util.Arrays.mergeSort(Arrays.java:1282) at java.util.Arrays.mergeSort(Arrays.java:1282) at java.util.Arrays.mergeSort(Arrays.java:1282) at java.util.Arrays.mergeSort(Arrays.java:1282) at java.util.Arrays.mergeSort(Arrays.java:1282) at java.util.Arrays.mergeSort(Arrays.java:1282) at java.util.Arrays.mergeSort(Arrays.java:1282) at java.util.Arrays.sort(Arrays.java:1210) at org.eclipse.ui.internal.provisional.views.markers.CachedMarkerBuilder.sortAndMakeCategories(CachedMarkerBuilder.java:951) at org.eclipse.ui.internal.provisional.views.markers.CachedMarkerBuilder.buildAllMarkers(CachedMarkerBuilder.java:251) at org.eclipse.ui.internal.provisional.views.markers.CachedMarkerBuilder$1.run(CachedMarkerBuilder.java:368) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/MarkerSupportRegistry.java
while (nextEntriesIterator.hasNext()) {
					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 attributeMappings
	 */
	private void processAttributeMappings(Collection attributeMappings) {
		Iterator mappingsIterator = attributeMappings.iterator();
		while (mappingsIterator.hasNext()) {
			AttributeMarkerGrouping next = (AttributeMarkerGrouping) mappingsIterator
					.next();
			String defaultEntryId = next.getDefaultGroupingEntry();
			if (defaultEntryId != null) {
				if (markerGroupingEntries.containsKey(defaultEntryId)) {
					MarkerGroupingEntry entry = (MarkerGroupingEntry) markerGroupingEntries
							.get(defaultEntryId);
					entry.setAsDefault(next.getMarkerType());
				} else {