Bug 151958 [Markers] Custom problem filter not updated
- create a minimal plugin with a plugin.xml like this: <?xml version="1.0" encoding="UTF-8"?> <?eclipse version="3.2"?> <plugin> <extension point="org.eclipse.ui.ide.markerSupport"> <problemFilter name="Problems" id="markererror.myPlugin.filterId" enabled="true" scope="ON_ANY_IN_SAME_CONTAINER"> <selectedType/> </problemFilter> </extension> </plugin> - start a runtime workbench, introduce a compile error in a Java class to get a problem marker. - in the problems view, disable the default filter, the filter "Problems" remains activated. - no markers are shown in the problem view. I debugged a little and found that the method MarkerFilter.setFocusResource() is only called for the default filter, not for the plugin-defined "Problems" filter: The latter filter is only contained in the field MarkerView.enabledFilters. The field MarkerView.markerFilters contains only the default filter.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/DialogMarkerFilter.java
protected void updateForSelection() {
		updateEnabledState(true);
		markDirty();
	}
	/**
	 * Get all of the marker types avilable for the filter
	 * 
	 * @param selected
	 * @return Object[]
	 */
	Object[] getRootEntries(MarkerFilter selected) {
		List roots = selected.getRootTypes();
		List markerNodes = new ArrayList();
		HashMap categories = new HashMap();
		for (int i = 0; i < roots.size(); i++) {
			Object obj = roots.get(i);
			buildTypeTree(markerNodes, obj, categories);
		}
		return markerNodes.toArray();
	}
	/**
	 * Build the list of types and categories from the supplied object
	 * 
	 * @param elements
	 * @param obj
	 * @param categories
	 */
	private void buildTypeTree(List elements, Object obj, HashMap categories) {
		if (obj instanceof MarkerType) {
			MarkerType markerType = (MarkerType) obj;