@Override
  public PropertiesFile getPropertiesFile() {
    PsiFile containingFile = super.getContainingFile();
    if (!(containingFile instanceof PropertiesFile)) {
      LOG.error("Unexpected file type of: " + containingFile.getName());
    }
    return (PropertiesFile)containingFile;
  }
@Override
  public PropertiesFile getPropertiesFile()