* null strings have a zero pointer.
     *
     * @param string the string to validate
     * @return the validated string
     * @throws PACDecodingException if validation fails
     */
    public String check(final String string) throws PACDecodingException {
        if (this.pointer == 0 && string != null) {
            throw new PACDecodingException("Non-empty string");

     * Get error if request failed
     *
     * @return exception if failed, null if successful
     */
    public Exception getError() {
        return error;
    }

    /**
     * Check if request failed
     *
     * @return true if failed, false otherwise
     */
    public boolean hasFailed() {
        return error != null;
    }

     * @param cause the cause (which is saved for later retrieval by the {@link #getCause()} method).
     *              (A {@code null} value is permitted, and indicates that the cause is nonexistent or unknown.)
     */
    public ExtractException(final String message, final Throwable cause) {
        super(message, cause);
    }

    /**

            }

            @Override
            public List<String> convert(String text, final String field, String... langs) throws IOException {
                return null;
            }
        };

        final Normalizer normalizer = (text, field, lang) -> null;

        final Suggester suggester = Suggester.builder()
                .settings(SuggestSettings.builder().setSettingsIndexName(settingsIndexName))

    String[] tagFieldNames = new String[] { "label", "virtual_host" };
    String roleFieldName = "role";

    public void test_parseQueryLog() throws Exception {

        QueryLog queryLog = new QueryLog("content:検索エンジン", null);
        List<SuggestItem> items = defaultContentsParser.parseQueryLog(queryLog, supportedFields, tagFieldNames, roleFieldName,
                createDefaultReadingConverter(), createDefaultNormalizer());

    }

    public void test_rethrow() {
        // Test rethrowing the exception
        DictionaryExpiredException originalException = null;
        DictionaryExpiredException rethrownException = null;

        try {
            try {
                throw new DictionaryExpiredException();
            } catch (DictionaryExpiredException e) {
                originalException = e;

  static <T extends Throwable> T assertThrows(
      Class<T> expectedThrowable, ThrowingRunnable runnable) {
    return doAssertThrows(
        expectedThrowable,
        () -> {
          runnable.run();
          return null;
        },
        /* userPassedSupplier= */ false);
  }

  private static <T extends Throwable> T doAssertThrows(
      Class<T> expectedThrowable, ThrowingSupplier supplier, boolean userPassedSupplier) {

    protected int readDataWireFormat(final byte[] buffer, int bufferIndex, final int len) throws SMBProtocolDecodingException {
        final int start = bufferIndex;
        final AllocInfo inf = createInfo();
        if (inf != null) {
            bufferIndex += inf.decode(buffer, bufferIndex, getDataCount());
            this.info = inf;
        }
        return bufferIndex - start;
    }

    /**
     * @return
     */

     * @see ArtifactCoordinates#getClassifier()
     */
    @Nonnull
    String getClassifier();

    /**
     * Returns the file extension of the artifact.
     * The dot separator is not included in the returned string.
     *
     * @return the file extension or an empty string if none, never {@code null}
     * @see ArtifactCoordinates#getExtension()

        final StringBuilder sb = new StringBuilder();
        for (final CharSequence element : elements) {
            if (sb.length() > 0) {
                if (delimiter != null) {
                    sb.append(delimiter);
                } else {
                    sb.append("null");
                }
            }
            sb.append(element);
        }
        return sb.toString();
    }