code: public void informIfChanged(final EventDispatcher pDispatcher,
                                  final Path pFile,
                                  final boolean pIsCreated) {
          informIfChanged(pDispatcher, null, pFile, pIsCreated);
      }
docs: Triggers the {@link PathChangeListener#modified(PathChangeEvent)} on all listeners specified if the
  file represented by the path specified has been changed i.e. has a new checksum. If no checksum change
  has been detected, nothing happens.
  
  @param pFile File which potentially has changed, must not be {@code null}