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/internal/provisional/views/markers/CachedMarkerBuilder.java
} finally {
			building = false;
		}
	}
	/**
	 * Break the marker up into categories
	 * 
	 * @param markers
	 * @param start
	 *            the start index in the markers
	 * @param end
	 *            the last index to check
	 * @param sortIndex -
	 *            the parent of the field
	 * @return MarkerCategory[] or <code>null</code> if we are at the bottom
	 *         of the tree
	 */
	MarkerCategory[] buildHierarchy(MarkerMap markers, int start, int end,
			int sortIndex) {
		MarkerComparator sorter = getComparator();
		if (sortIndex > 0) {
			return null;
		}
		Collection categories = new ArrayList();
		Object previous = null;
		int categoryStart = start;
		Object[] elements = markers.toArray();
		for (int i = start; i <= end; i++) {
			if (previous != null) {