* The date pattern.
     */
    protected String pattern;

    /**
     * Constructs an instance.
     *
     * @param pattern
     *            the date pattern
     */
    public SqlDateConverter(final String pattern) {
        assertArgumentNotEmpty("pattern", pattern);
        this.pattern = pattern;
    }

    @Override
    public Object getAsObject(final String value) {
        if (StringUtil.isEmpty(value)) {

     * in the toolchain plugin configuration.
     * @param requirements Map<String, String> key value pair, may not be {@code null}
     * @return {@code true} if the requirements match, otherwise {@code false}
     */
    boolean matchesRequirements(Map<String, String> requirements);

    /**
     *
     * @return the original model wrapped by this interface
     */

    public static RequirementMatcher createExactMatcher(String provideValue) {
        return new ExactMatcher(provideValue);
    }

    public static RequirementMatcher createVersionMatcher(String provideValue) {
        return new VersionMatcher(provideValue);
    }

    private static final class ExactMatcher implements RequirementMatcher {

        private String provides;

        private ExactMatcher(String provides) {

type Help struct {
	SubSys          string         `json:"subSys"`
	Description     string         `json:"description"`
	MultipleTargets bool           `json:"multipleTargets"`
	KeysHelp        config.HelpKVS `json:"keysHelp"`
}

// GetHelp - returns help for sub-sys, a key for a sub-system or all the help.
func GetHelp(subSys, key string, envOnly bool) (Help, error) {
	if len(subSys) == 0 {

  void writeDouble(double v);

  @Override
  void writeChars(String s);

  @Override
  void writeUTF(String s);

  /**
   * @deprecated This method is dangerous as it discards the high byte of every character. For
   *     UTF-8, use {@code write(s.getBytes(StandardCharsets.UTF_8))}.
   */
  @Deprecated
  @Override
  void writeBytes(String s);

     */
    protected static String getSql(final SQLException cause) {
        if (cause instanceof ClSQLException) {
            return ((ClSQLException) cause).getSql();
        }
        return "";
    }

    /**
     * Returns the real message.
     *
     * @param cause the underlying exception
     * @return the real message
     */
    protected static String getRealMessage(final SQLException cause) {

        if (crudMode != expectedMode) {
            throwValidationError(messages -> {
                messages.addErrorsCrudInvalidMode(GLOBAL, String.valueOf(expectedMode), String.valueOf(crudMode));
            }, this::asListHtml);
        }
    }

    private String getCsvEncoding() {
        return fessConfig.getCsvFileEncoding();
    }

    @Override
    public void setUp() throws Exception {
        super.setUp();
        accessTokenHelper = new AccessTokenHelper();
    }

    public void test_generateAccessToken() {
        List<String> tokens = new ArrayList<String>();
        for (int i = 0; i < NUM; i++) {
            tokens.add(accessTokenHelper.generateAccessToken());
        }
        for (int i = 0; i < NUM; i++) {
            assertFalse(tokens.get(i).isEmpty());

        }
        return logger;
    }

    /**
     * Returns a formatted message string.
     *
     * @param messageCode
     *            Message code. Must not be {@literal null} or empty string.
     * @param args
     *            Arguments
     * @return Formatted message string
     */
    public static LogMessage format(final String messageCode, final Object... args) {
        assertArgumentNotEmpty("messageCode", messageCode);

        char[] plaintext = "TestPassword456".toCharArray();

        // Encrypt to string
        String encryptedStr = storage.encryptToString(plaintext);
        assertNotNull(encryptedStr, "Encrypted string should not be null");
        assertFalse(encryptedStr.contains("TestPassword456"), "Plaintext should not be visible in encrypted string");

        // Should be valid base64