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
* 
	 * @param element
	 *            the filter element
	 * @return ProblemFilter
	 */
	private ProblemFilter newFilter(IConfigurationElement element) {
		ProblemFilter filter = new ProblemFilter(element
				.getAttribute(MarkerSupportConstants.ATTRIBUTE_NAME));
		filter.createContributionFrom(element);
		String enabledValue = element.getAttribute(ENABLED);
		filter.setEnabled(enabledValue == null
				|| Boolean.valueOf(enabledValue).booleanValue());
		int scopeValue = getScopeValue(element);
		if (scopeValue >= 0) {
			filter.setOnResource(scopeValue);
		}
		String description = element.getAttribute(DESCRIPTION);
		if (description != null) {
			boolean contains = true;
			if (description.charAt(0) == '!') {
				description = description.substring(1, description.length());
				contains = false;
			}
			filter.setContains(contains);
			filter.setDescription(description);
		}
		int severityValue = getSeverityValue(element);
		if (severityValue > 0) {
			filter.setSelectBySeverity(true);
			filter.setSeverity(severityValue);