Bug 14444 java editor refers to internal jcore classes
ClassFileEditor CompilationUnitDocumentProvider JavaMarkerAnnotation
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/CompilationUnitDocumentProvider.java
private IFileEditorInput fInput;
			private List fCollectedProblems;
			private List fGeneratedAnnotations;
			private IProgressMonitor fProgressMonitor;
			private boolean fIsActive= false;
			
			private ReverseMap fReverseMap= new ReverseMap();
			private List fPreviouslyShadowed= null; 
			private List fCurrentlyShadowed= new ArrayList();
			public CompilationUnitAnnotationModel(IFileEditorInput input) {
				super(input.getFile());
				fInput= input;
			}
			
			protected MarkerAnnotation createMarkerAnnotation(IMarker marker) {
				return new JavaMarkerAnnotation(marker);
			}