public boolean contains(Location location, FileObject fo) throws IOException {
    if (fo instanceof JpsFileObject) {
      return location.equals(((JpsFileObject)fo).getLocation()) || getLocationForModule(location, ((JpsFileObject)fo)) != null;
    }
    return myContainsCall.callDefaultImpl(getStdManager(), "file object " + fo.getClass().getName(), location, fo);
  }
public boolean contains(Location location, FileObject fo)