"The system cannot find the path specified.", "The specified path is invalid.",
            "The process cannot access the file because it is being used by another process.", "Access is denied.",
            "There are currently no logon servers available to service the logon request.", "The specified user already exists.",
            "The specified user does not exist.", "The specified network password is not correct.",

     */
    protected CopyOptionsUtil() {
    }

    /**
     * Returns a {@link CopyOptions} with the specified property names to include in the operation.
     *
     * @param propertyNames
     *            An array of property names. Must not be {@literal null} or an empty array.
     * @return A {@link CopyOptions} with the specified property names to include in the operation.
     * @see CopyOptions#include(CharSequence...)
     */

        return deleteDocumentByQuery(searchEngineClient, fessConfig.getIndexDocumentUpdateIndex(), queryBuilder);
    }

    /**
     * Deletes all documents that match the specified query from the specified index.
     *
     * @param searchEngineClient the search engine client to use for deletion
     * @param index the index name to delete documents from

            "The filename, directory name, or volume label syntax is incorrect.", "The system cannot find the file specified.",
            "Cannot create a file when that file already exists.", "The handle is invalid.", "The specified path is invalid.",
            "The system cannot find the path specified.", "The specified path is invalid.",

  }

  /**
   * Inserts the specified element into this priority queue.
   *
   * @param e the element to add
   * @return {@code true} (as specified by {@link Queue#offer})
   * @throws ClassCastException if the specified element cannot be compared with elements currently
   *     in the priority queue according to the priority queue's ordering
   * @throws NullPointerException if the specified element is null
   */

  /**
   * Associates the specified value with the specified keys. If the table already contained a
   * mapping for those keys, the old value is replaced with the specified value.
   *
   * @param rowKey row key that the value should be associated with
   * @param columnKey column key that the value should be associated with
   * @param value value to be associated with the specified keys

   * type of the returned array is that of the specified array. If the queue fits in the specified
   * array, it is returned therein. Otherwise, a new array is allocated with the runtime type of the
   * specified array and the size of this queue.
   *
   * <p>If this queue fits in the specified array with room to spare (i.e., the array has more

	// since the specified time otherwise return 412 (precondition failed).
	ifModifiedSinceHeader := r.Header.Get(xhttp.AmzCopySourceIfModifiedSince)
	if ifModifiedSinceHeader != "" {
		if givenTime, err := amztime.ParseHeader(ifModifiedSinceHeader); err == nil {
			if !ifModifiedSince(objInfo.ModTime, givenTime) {
				// If the object is not modified since the specified time.
				writeHeaders()

     */
    public static <T> int indexOf(final T[] array, final T obj) {
        return indexOf(array, obj, 0);
    }

    /**
     * Returns the index of the first occurrence of the specified object in the array, starting the search at the specified index.
     *
     * @param <T>
     *            the type of the array elements
     * @param array
     *            the array
     * @param obj

    }

    /**
     * Returns true if the string ends with the specified substring, ignoring case.
     *
     * @param target1
     *            the text to check
     * @param target2
     *            the substring to compare
     * @return {@literal true} if the string ends with the specified substring, ignoring case
     */