}
    }

    // Test that 0xFFFE and 0xFFFF are replaced with 0xFFFD
    assertEscaping(xmlEscaper, "\uFFFD", '\uFFFE');
    assertEscaping(xmlEscaper, "\uFFFD", '\uFFFF');

    assertEquals(
        "0xFFFE is forbidden and should be replaced during escaping",
        "[\uFFFD]",
        xmlEscaper.escape("[\ufffe]"));
    assertEquals(
        "0xFFFF is forbidden and should be replaced during escaping",

   * element content or {@link #xmlAttributeEscaper} in attribute values.
   *
   * <p>This escaper substitutes {@code 0xFFFD} for non-whitespace control characters and the
   * character values {@code 0xFFFE} and {@code 0xFFFF} which are not permitted in XML. For more
   * detail see section <a href="http://www.w3.org/TR/2008/REC-xml-20081126/#charsets">2.2</a> of
   * the XML specification.
   *

     * - Tab (0x9)
     * - Line feed (0xA)
     * - Carriage return (0xD)
     * - Any character between 0x20 and 0xD7FF
     * - Any character between 0xE000 and 0xFFFD
     * - Any character between 0x10000 and 0x10FFFF
     *
     * @param in the input string to be processed
     * @return a new string with invalid XML characters removed, or the original

	repl string
	out  string
}{
	{"", "\uFFFD", ""},
	{"abc", "\uFFFD", "abc"},
	{"\uFDDD", "\uFFFD", "\uFDDD"},
	{"a\xffb", "\uFFFD", "a\uFFFDb"},
	{"a\xffb\uFFFD", "X", "aXb\uFFFD"},
	{"a☺\xffb☺\xC0\xAFc☺\xff", "", "a☺b☺c☺"},
	{"a☺\xffb☺\xC0\xAFc☺\xff", "日本語", "a☺日本語b☺日本語c☺日本語"},
	{"\xC0\xAF", "\uFFFD", "\uFFFD"},
	{"\xE0\x80\xAF", "\uFFFD", "\uFFFD"},
	{"\xed\xa0\x80", "abc", "abc"},

      0x79,
      0x7a,
      0x7b,
      0x7ffe,
      0x7fc,
      0x3ffd,
      0x1ffd,
      0xffffffc,
      0xfffe6,
      0x3fffd2,
      0xfffe7,
      0xfffe8,
      0x3fffd3,
      0x3fffd4,
      0x3fffd5,
      0x7fffd9,
      0x3fffd6,
      0x7fffda,
      0x7fffdb,
      0x7fffdc,
      0x7fffdd,
      0x7fffde,
      0xffffeb,
      0x7fffdf,

    void testNegativeFidValue() {
        int fid = -1; // Will be treated as 0xFFFF in unsigned 16-bit
        notifyChange = new NtTransNotifyChange(mockConfig, fid, FILE_NOTIFY_CHANGE_FILE_NAME, false);
        byte[] dst = new byte[10];

        notifyChange.writeSetupWireFormat(dst, 0);

        // Should write as 0xFFFF (65535 in unsigned)
        assertEquals(0xFFFF, SMBUtil.readInt2(dst, 4));
    }

    @Test

      <match value="0xfff2" type="string" offset="0"/> <!-- V2, L3, CRC -->
      <match value="0xfff3" type="string" offset="0"/> <!-- V2, L3      -->
      <match value="0xfff4" type="string" offset="0"/> <!-- V2, L2, CRC -->
      <match value="0xfff5" type="string" offset="0"/> <!-- V2, L2      -->
      <match value="0xfff6" type="string" offset="0"/> <!-- V2, L1, CRC -->

        int fid = -1; // Will be treated as 0xFFFF in unsigned 16-bit
        querySecurityDesc = new NtTransQuerySecurityDesc(mockConfig, fid, OWNER_SECURITY_INFORMATION);
        byte[] dst = new byte[10];

        querySecurityDesc.writeParametersWireFormat(dst, 0);

        // Should write as 0xFFFF (65535 in unsigned)
        assertEquals(0xFFFF, SMBUtil.readInt2(dst, 0));
    }

    @Test

      cp >>>= 2;
      dest[2] = upperHexDigits[cp & 0xF];
      cp >>>= 4;
      dest[1] = upperHexDigits[0xC | cp];
      return dest;
    } else if (cp <= 0xffff) {
      // Three byte UTF-8 characters [cp >= 0x800 && cp <= 0xffff]
      // Start with "%E-%--%--" and fill in the blanks
      char[] dest = new char[9];
      dest[0] = '%';
      dest[1] = 'E';
      dest[3] = '%';
      dest[6] = '%';

            }

            // there seems to be a bug with some servers that causes corruption if using signatures + CAP_LARGE_WRITE
            if (th.hasCapability(SmbConstants.CAP_LARGE_WRITEX) && !th.areSignaturesActive()) {
                this.writeSize = Math.min(th.getConfig().getSendBufferSize() - 70, 0xFFFF - 70);
            }

            this.fp = 0L;