Bug 46393 [RCP] Lost nature icon on project
N20031111 start fresh workspace, create a Java project ==> missing nature icon "J"
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/registry/MarkerImageProviderRegistry.java
private static final String ATT_PROVIDER_CLASS = "class";
	private static final String ATT_ICON = "icon";
	private static final String ATT_MARKER_TYPE = "markertype";
	private static final String ATT_ID = "id";
	private static final String MARKER_ATT_KEY = "org.eclipse.ui.internal.registry.MarkerImageProviderRegistry";
	private static final String TAG_PROVIDER = "imageprovider";
	private ArrayList descriptors = new ArrayList();
	class Descriptor {