private final byte[] in;
    private int inLen;

    /**
     * Creates a new MimeMap instance by loading MIME type mappings from the resource file.
     *
     * @throws IOException if there is an error reading the mime.map resource file
     */
    public MimeMap() throws IOException {
        int n;

        in = new byte[IN_SIZE];

   * except using little-endian byte order.
   *
   * @return the next two bytes of the input stream, interpreted as an unsigned 16-bit integer in
   *     little-endian byte order
   * @throws IOException if an I/O error occurs
   */
  @CanIgnoreReturnValue // to skip some bytes
  @Override
  public int readUnsignedShort() throws IOException {
    byte b1 = readAndCheckByte();
    byte b2 = readAndCheckByte();

    /**
     * NDR encoding error fault code
     */
    int DCERPC_FAULT_NDR = 0x000006F7;
    /**
     * Invalid tag fault code
     */
    int DCERPC_FAULT_INVALID_TAG = 0x1C000006;
    /**
     * Context mismatch fault code
     */
    int DCERPC_FAULT_CONTEXT_MISMATCH = 0x1C00001A;
    /**
     * Operation range error fault code
     */
    int DCERPC_FAULT_OP_RNG_ERROR = 0x1C010002;

    }

    private static String getMessage(Throwable error, String def) {
        if (error == null) {
            return def;
        }
        String msg = error.getMessage();
        if (msg != null && !msg.isEmpty()) {
            return msg;
        }
        return getMessage(error.getCause(), def);
    }

    private ArtifactRepositoryLayout getLayout(String id) {

  static void interruptCurrentThread() {}

  static void rethrowIfErrorOtherThanStackOverflow(Throwable t) {
    if (t instanceof Error) {
      // There is no StackOverflowError under GWT/J2CL.
      throw (Error) t;
    }
  }

  static <V extends @Nullable Object> V get(AbstractFuture<V> future)
      throws InterruptedException, ExecutionException {

   * data, and vertical if there is variance in the {@code y} data but not the {@code x} data.
   *
   * <p>This fit minimizes the root-mean-square error in {@code y} as a function of {@code x}. This
   * error is defined as the square root of the mean of the squares of the differences between the
   * actual {@code y} values of the data and the values predicted by the fit for the {@code x}

        assertEquals(Severity.ERROR, problem.getSeverity());

        problem = new DefaultProblem(null, Severity.FATAL, null, -1, -1, null);
        assertEquals(Severity.FATAL, problem.getSeverity());

        problem = new DefaultProblem(null, Severity.ERROR, null, -1, -1, null);
        assertEquals(Severity.ERROR, problem.getSeverity());

        });
    }

    /**
     * Stores a new failure URL or updates an existing one with error information.
     * Creates a new failure URL entry or increments the error count for an existing URL.
     *
     * @param crawlingConfig the crawling configuration associated with the failure
     * @param errorName the name/type of the error that occurred
     * @param url the URL that failed to be crawled

     *
     * @param func the callback function to build XContent
     * @param mediaType the media type for the content builder
     * @return an OutputStream containing the built content, or an empty ByteArrayOutputStream if an error occurs
     */
    public static OutputStream getXContentBuilderOutputStream(final XContentBuilderCallback func, final MediaType mediaType) {

        RuntimeException rootCause = new RuntimeException("Root cause error");
        TransportException exception = new TransportException(rootCause);

        // Verify the exception has the correct cause
        assertNotNull(exception);
        assertEquals(rootCause, exception.getCause());
        assertEquals("java.lang.RuntimeException: Root cause error", exception.getMessage());

        // Test with null cause