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
IConfigurationElement[] types = element
				.getChildren(MARKER_TYPE_REFERENCE);
		String[] ids = new String[types.length];
		for (int i = 0; i < ids.length; i++) {
			ids[i] = types[i].getAttribute(MarkerSupportConstants.ATTRIBUTE_ID);
		}
		return ids;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.core.runtime.dynamichelpers.IExtensionChangeHandler#addExtension(org.eclipse.core.runtime.dynamichelpers.IExtensionTracker,
	 *      org.eclipse.core.runtime.IExtension)
	 */
	public void addExtension(IExtensionTracker tracker, IExtension extension) {
		Map groupingEntries = new HashMap();
		Set attributeMappings = new HashSet();
		processExtension(tracker, extension, groupingEntries, attributeMappings);
		postProcessExtensions(groupingEntries, attributeMappings);
	}
	/**
	 * Get the collection of currently registered filters.
	 * 
	 * @return Collection of ProblemFilter
	 */
	public Collection getRegisteredFilters() {
		Collection filteredFilters = new ArrayList();
		Iterator registeredIterator = registeredFilters.values().iterator();
		while (registeredIterator.hasNext()) {
			ProblemFilter next = (ProblemFilter) registeredIterator.next();