@Override
  public void validateArguments() throws BuildException {
    super.validateArguments();
    if (filePath == null) {
      throw new BuildException("filePath attribute must be specified for renamedFile tag");
    }
    if (newName == null) {
      throw new BuildException("newName attribute must be specified for renamedFile tag");
    }
  }
@Override
  public void validateArguments()