assertEquals(6, PacConstants.SERVER_CHECKSUM, "SERVER_CHECKSUM should be 6");
        assertEquals(7, PacConstants.PRIVSVR_CHECKSUM, "PRIVSVR_CHECKSUM should be 7");
        assertEquals(0xA, PacConstants.CLIENT_NAME_TYPE, "CLIENT_NAME_TYPE should be 0xA");
        assertEquals(0xB, PacConstants.CONSTRAINT_DELEGATIION_TYPE, "CONSTRAINT_DELEGATIION_TYPE should be 0xB");
        assertEquals(0xC, PacConstants.CLIENT_UPN_TYPE, "CLIENT_UPN_TYPE should be 0xC");

0x8a86c7dbebf27b68}, {0x9, 0x3}: {0x1: 0xa64e3be6d6fe7e92}, {0x9, 0x4}: {0x1: 0x239b71c41745d207}, {0x9, 0x5}: {0x1: 0x2d0803094c5a86ce}, {0x9, 0x6}: {0x1: 0xa3c2539b3af84874}, {0xa, 0x1}: {0x1: 0x7d30d91b89fcec21}, {0xa, 0x2}: {0x1: 0xfa5af9aa9f1857a3}, {0xa, 0x3}: {0x1: 0x84bc4bda8af81f90}, {0xa, 0x4}: {0x1: 0x6c1cba8631de994a}, {0xa, 0x5}: {0x1: 0x4383e58a086cc1ac}, {0xb, 0x1}: {0x1: 0x4ed2929a2df690b}, {0xb, 0x2}: {0x1: 0xecd6f1b1399775c0}, {0xb, 0x3}: {0x1: 0xc78cfbfc0dc64d01}, {0xb, 0x4}: {0x1: 0xb2643390973702d6},...

    /**
     * Buffer type for privilege server (KDC) checksum signature.
     */
    int PRIVSVR_CHECKSUM = 7;

    /**
     * Buffer type for client name information.
     */
    int CLIENT_NAME_TYPE = 0xA;
    /**
     * Buffer type for constrained delegation information.
     */
    int CONSTRAINT_DELEGATIION_TYPE = 0xB;
    /**
     * Buffer type for client user principal name.
     */

  FLOW_CONTROL_ERROR(3),

  SETTINGS_TIMEOUT(4),

  STREAM_CLOSED(5),

  FRAME_SIZE_ERROR(6),

  REFUSED_STREAM(7),

  CANCEL(8),

  COMPRESSION_ERROR(9),

  CONNECT_ERROR(0xa),

  ENHANCE_YOUR_CALM(0xb),

  INADEQUATE_SECURITY(0xc),

  HTTP_1_1_REQUIRED(0xd),
  ;

  companion object {
    fun fromHttp2(code: Int): ErrorCode? = values().find { it.httpCode == code }
  }

0x53, 0xd9, 0x8f, 0xf, 0x59, 0xfd, 0xcc, 0x61, 0x63, 0x9d, 0x17, 0xc9, 0xe6, 0x44, 0x6b, 0x62, 0xe9, 0x72, 0xcf, 0x64, 0xeb, 0x22, 0x10, 0x61, 0xd9, 0x7f, 0xf3, 0x88, 0xb2, 0x9e, 0x7e, 0xbb, 0x3e, 0x86, 0x3, 0x44, 0x7e, 0x9, 0xa, 0xa, 0xe1, 0x15, 0x65, 0x46, 0x85, 0x19, 0x86, 0xa, 0x3d, 0xcb, 0x26, 0x48, 0x7d, 0xd6, 0x11, 0xe2, 0xd8, 0x88, 0x39, 0x28, 0x9d, 0xb, 0x6e, 0xf6, 0x9a, 0xb3, 0xa8, 0x5c, 0x47, 0xbd, 0x88, 0x45, 0xf9, 0xa5, 0xb, 0xb8, 0x77, 0xc0, 0x66, 0x79, 0x6b, 0xe0, 0x6c, 0xc2, 0x27, 0xda,...

  internal const val OPCODE_TEXT = 0x1
  internal const val OPCODE_BINARY = 0x2

  internal const val OPCODE_CONTROL_CLOSE = 0x8
  internal const val OPCODE_CONTROL_PING = 0x9
  internal const val OPCODE_CONTROL_PONG = 0xa

  /**
   * Maximum length of frame payload. Larger payloads, if supported by the frame type, can use the
   * special values [PAYLOAD_SHORT] or [PAYLOAD_LONG].
   */
  internal const val PAYLOAD_BYTE_MAX = 125L

0x53, 0xd9, 0x8f, 0xf, 0x59, 0xfd, 0xcc, 0x61, 0x63, 0x9d, 0x17, 0xc9, 0xe6, 0x44, 0x6b, 0x62, 0xe9, 0x72, 0xcf, 0x64, 0xeb, 0x22, 0x10, 0x61, 0xd9, 0x7f, 0xf3, 0x88, 0xb2, 0x9e, 0x7e, 0xbb, 0x3e, 0x86, 0x3, 0x44, 0x7e, 0x9, 0xa, 0xa, 0xe1, 0x15, 0x65, 0x46, 0x85, 0x19, 0x86, 0xa, 0x3d, 0xcb, 0x26, 0x48, 0x7d, 0xd6, 0x11, 0xe2, 0xd8, 0x88, 0x39, 0x28, 0x9d, 0xb, 0x6e, 0xf6, 0x9a, 0xb3, 0xa8, 0x5c, 0x47, 0xbd, 0x88, 0x45, 0xf9, 0xa5, 0xb, 0xb8, 0x77, 0xc0, 0x66, 0x79, 0x6b, 0xe0, 0x6c, 0xc2, 0x27, 0xda,...

0x76, 0x65, 0x6e, 0x74, 0x2d, 0x74, 0x79, 0x70, 0x65, 0x7, 0x0, 0x7, 0x52, 0x65, 0x63, 0x6f, 0x72, 0x64, 0x73, 0x74, 0x72, 0x75, 0x65, 0x2c, 0x66, 0x6f, 0x6f, 0x2c, 0x2d, 0x31, 0xa, 0x66, 0x61, 0x6c, 0x73, 0x65, 0x2c, 0x62, 0x61, 0x72, 0x2c, 0xa, 0x74, 0x72, 0x75, 0x65, 0x2c, 0x62, 0x61, 0x7a, 0x2c, 0x32, 0x2e, 0x35, 0xa, 0xef, 0x22, 0x13, 0xa3, 0x0, 0x0, 0x0, 0xed, 0x0, 0x0, 0x0, 0x43, 0x5a, 0xb3, 0xcc, 0x2d, 0xd, 0x3a, 0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x2d, 0x74, 0x79, 0x70, 0x65, 0x7,...

        when(cfg.isTraceResourceUsage()).thenReturn(false);
        stubValidTree(6L, true, false); // SMB1

        SmbFileHandleImpl h = new SmbFileHandleImpl(cfg, 42, tree, "//s/share", 0xA, 0xB, 0xC, 0xD, 0L);

        long lastWrite = 123456789L;
        h.close(lastWrite);

        // Verify SMB1 close path uses request + response overload

    testDecodes(ignoreCase, "666F6f626172", "foobar");
  }

  public void testBase16InvalidDecodings() {
    // These contain bytes not in the decodabet.
    assertFailsToDecode(base16(), "\n\n", "Unrecognized character: 0xa");
    assertFailsToDecode(base16(), "EFGH", "Unrecognized character: G");
    // Valid base16 strings always have an even length.
    assertFailsToDecode(base16(), "A", "Invalid input length 1");