}

    /**
     * Adds the specified element to this set if it is not already present.
     *
     * @param o
     *            element to be added to this set.
     * @return true if the set did not already contain the specified
     *         element.
     */
    @Override
    public boolean add(final E o) {
        return map.put(o, PRESENT) == null;
    }

    /**

  @CollectionFeature.Require(SUPPORTS_REMOVE)
  @CollectionSize.Require(absent = ZERO)
  public void testRemove_present() {
    getSet().remove(e0());
    assertFalse(
        "After remove(present) a set should not contain the removed element.",
        getSet().contains(e0()));
  }

  @CollectionFeature.Require(SUPPORTS_REMOVE)
  @CollectionSize.Require(absent = ZERO)
  public void testRemove_present() {
    getSet().remove(e0());
    assertFalse(
        "After remove(present) a set should not contain the removed element.",
        getSet().contains(e0()));
  }

     */
    public DosFileFilter(final String wildcard, final int attributes) {
        this.wildcard = wildcard;
        this.attributes = attributes;
    }

    /* This returns true if the file's attributes contain any of the attributes
     * specified for this filter. The wildcard has no influence on this
     * method as the server should have performed that filtering already. The

     */
    @Required
    public MultipartFormFile designFile;

    /**
     * The name for the design file being uploaded.
     * Must not contain invalid file system characters like backslash, colon, asterisk, etc.
     */
    @Pattern(regexp = "^[^\\\\|/|:|\\*|?|\"|<|>|\\|]+$", message = "{errors.design_file_name_is_invalid}")
    public String designFileName;

     */
    @Required
    public String dictId;

    /**
     * The multipart file containing the protected words to be uploaded.
     * This file should contain a list of words that should be protected from stemming.
     */
    @Required
    public MultipartFormFile protwordsFile;

    /**
     * Default constructor for UploadForm.

        // Default constructor
    }

    /**
     * Extracts the filename from the parameters.
     * @param in The input stream (not used).
     * @param params The parameters, expected to contain ExtractData.RESOURCE_NAME_KEY.
     * @return An ExtractData object containing the filename as content.
     */
    @Override
    public ExtractData getText(final InputStream in, final Map<String, String> params) {

    testDecodes(base64(), "Zg==", "f"); // proper padding length
    testDecodes(base64(), "Zg===", "f");
    testDecodes(base64(), "Zg====", "f");
  }

  public void testBase64InvalidDecodings() {
    // These contain bytes not in the decodabet.
    assertFailsToDecode(base64(), "A\u007f", "Unrecognized character: 0x7f");
    assertFailsToDecode(base64(), "Wf2!", "Unrecognized character: !");
    // This sentence just isn't base64() encoded.

        // Act
        String text = ex.toString();

        // Assert
        assertNotNull(text);
        assertTrue(text.contains(expectedSubstring), "toString should contain: " + expectedSubstring);
    }

     */
    @Required
    public String dictId;

    /**
     * The multipart file containing the stemmer override rules to be uploaded.
     * This file should contain mappings that override default stemming for specific words.
     */
    @Required
    public MultipartFormFile stemmerOverrideFile;

    /**
     * Default constructor for UploadForm.