Bug 137356 [Markers] marker grouping not working as expected via markerSupport
N20060418-0010 The Java tooling now warns when a buildpath references an execution environment for which there is no exact match in the workspace (warning support is in HEAD as of today - org.eclipse.jdt.launching and org.eclipse.jdt.debug.ui plugins). The marker created should be categorized as a buildpath problem with other JDT build path problems. To do this, I create a marker support extension as follows (in jdt.debug.ui). <extension point="org.eclipse.ui.ide.markerSupport"> <markerAttributeGrouping defaultGroupingEntry="org.eclipse.jdt.ui.category.buildpath" markerType="org.eclipse.jdt.launching.jreContainerMarker"/> </extension> My understanding is that this should group all markers of type "org.eclipse.jdt.launching.jreContainerMarker" as buildpath problems. JUI has a corresponding grouping entry: <markerGroupingEntry id="org.eclipse.jdt.ui.category.buildpath" markerGrouping="org.eclipse.jdt.ui.java_marker_category" label="%MarkerCategory.buildpath" priority="100"/> I get the following error in the log: Reference to invalid markerGroupingEntry org.eclipse.jdt.ui.category.buildpath
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/MarkerSupportRegistry.java
}
		for (int i = 0; i < types.length; i++) {
			MarkerType[] subtypes = types[i].getAllSubTypes();
			for (int j = 0; j < subtypes.length; j++) {
				TableSorter sorter = findSorterInChildren(typeName, subtypes[j]);
				if (sorter != null) {
					return sorter;
				}
			}
		}
		return defaultSorter;
	}
	/**
	 * Return the FieldMarkerGroups in the receiver.
	 * 
	 * @return Collection of FieldMarkerGroup
	 */
	public Collection getMarkerGroups() {
		return markerGroups.values();
	}
	/**
	 * Return the default group.
	 * @return IField
	 */
	public IField getDefaultGroup() {
		
		return (IField) markerGroups.get(SEVERITY_ID);
	}
}