<T> Class<T> getRawClass();

    /**
     * Returns an array of {@link ParameterizedClassDesc} representing the type arguments.
     * <p>
     * If the class represented by this instance is not a parameterized class, returns {@literal null}.
     * </p>
     *
     * @return an array of {@link ParameterizedClassDesc} representing the type arguments
     * @see ParameterizedType#getActualTypeArguments()
     */

            engineObj.status = "red";
            engineObj.exception = e.getMessage();
        }
        return engineObj;
    }

    /**
     * Data transfer object representing filesystem statistics.
     */
    public static class FsObj {
        /**
         * Default constructor.
         */
        public FsObj() {
            // Default constructor
        }

    this.nodeV = checkNotNull(nodeV);
  }

  /** Returns an {@link EndpointPair} representing the endpoints of a directed edge. */
  public static <N> EndpointPair<N> ordered(N source, N target) {
    return new Ordered<>(source, target);
  }

  /** Returns an {@link EndpointPair} representing the endpoints of an undirected edge. */
  public static <N> EndpointPair<N> unordered(N nodeU, N nodeV) {

     *
     * @param s
     *            A string representing a number
     * @return The normalized string
     * @see #normalize(String, Locale)
     */
    public static String normalize(final String s) {
        return normalize(s, LocaleUtil.getDefault());
    }

    /**
     * Normalizes the string representation of a number by removing grouping separators
     * and representing the decimal point with '.'.
     *
     * @param s

    this.nodeV = checkNotNull(nodeV);
  }

  /** Returns an {@link EndpointPair} representing the endpoints of a directed edge. */
  public static <N> EndpointPair<N> ordered(N source, N target) {
    return new Ordered<>(source, target);
  }

  /** Returns an {@link EndpointPair} representing the endpoints of an undirected edge. */
  public static <N> EndpointPair<N> unordered(N nodeU, N nodeV) {

    public ParameterizedClassDesc[] getArguments() {
        return arguments;
    }

    /**
     * Sets an array of {@link ParameterizedClassDesc} representing type arguments.
     *
     * @param arguments
     *            An array of {@link ParameterizedClassDesc} representing type arguments
     */
    public void setArguments(final ParameterizedClassDesc[] arguments) {
        this.arguments = arguments;
    }

    /** Environment variable name for specifying the application type */
    private static final String FESS_APP_TYPE = "FESS_APP_TYPE";

    /** Constant value representing Docker application type */
    private static final String FESS_APP_DOCKER = "docker";

    /**
     * Protected constructor to prevent instantiation of this utility class.

  /**
   * @return a {@code ListenableFuture} representing pending completion of the task
   * @throws RejectedExecutionException {@inheritDoc}
   */
  @Override
  <T extends @Nullable Object> ListenableFuture<T> submit(Callable<T> task);

  /**
   * @return a {@code ListenableFuture} representing pending completion of the task
   * @throws RejectedExecutionException {@inheritDoc}
   */

    public static final String RUNNING = "running";

    /** Status constant representing done/completed state. */
    public static final String DONE = "done";

    /** Status constant representing successful operation. */
    public static final String OK = "ok";

    /** Status constant representing failed operation. */
    public static final String FAIL = "fail";

    /**
     * Returns an array of {@link ParameterizedClassDesc} representing the parameter types of the method.
     *
     * @return an array of {@link ParameterizedClassDesc} representing the parameter types of the method
     */
    ParameterizedClassDesc[] getParameterizedClassDescs();

    /**
     * Returns the {@link ParameterizedClassDesc} representing the return type of the method.
     *