getCurrentEngine ();
if (currentEngine == null) return null;
JPDADebugger d = currentEngine.lookupFirst(null, JPDADebugger.class);
if (d == null) return null;
Part lp = (Part) getAttachedAnnotatable();
if (lp == null) return null;
Line line = lp.getLine ();
DataObject dob = DataEditorSupport.findDataObject (line);
if (dob == null) return null;
EditorCookie ec = dob.getCookie(EditorCookie.class);
if (ec == null)
return null;