@Override
  public void exec() {
    Iterable<File> files = getScreenshotFiles();

    for (File file : files) {
      super.setErrorOutput(SafeStreams.systemErr());
      super.setStandardOutput(SafeStreams.systemOut());

      doExec(getArgs(file));
    }
  }
  @Override
  protected void addDependencies() {
    super.addDependencies();

    addDependency("com.liferay", "org.monte", "0.7.7");
  }