final String path = dest.getLocator().getUNCPath();
        if (path.length() > 1) {
            try {
                dest.mkdir();
                if (dh.hasCapability(SmbConstants.CAP_NT_SMBS)) {
                    dest.setPathInformation(src.getAttributes(), src.createTime(), src.lastModified(), src.lastAccess());
                } else {

    static void writeULong(final byte[] dest, final int offset, final int ulong) {
        dest[offset] = (byte) (ulong & 0xff);
        dest[offset + 1] = (byte) (ulong >> 8 & 0xff);
        dest[offset + 2] = (byte) (ulong >> 16 & 0xff);
        dest[offset + 3] = (byte) (ulong >> 24 & 0xff);
    }

    static void writeUShort(final byte[] dest, final int offset, final int ushort) {
        dest[offset] = (byte) (ushort & 0xff);

    }

    @Test
    void testEncodeWithOffset() {
        // Test encoding with a destination offset
        byte[] data = { 0x01, 0x02, 0x03, 0x04, 0x05 };
        ByteEncodable encodable = new ByteEncodable(data, 0, 3);
        byte[] dest = new byte[5]; // {0,0,0,0,0}
        dest[0] = (byte) 0xFF; // Add some initial data to dest

        assertArrayEquals(before, dest, "Zero length should leave dest unchanged");
    }

    @Test
    @DisplayName("writeSecurityBuffer copies data and sets fields")
    void testWriteSecurityBufferNonZero() {
        byte[] dest = new byte[8 + 4];
        byte[] payload = { 0x55, 0x66, 0x77 };
        NtlmMessage.writeSecurityBuffer(dest, 0, 8, payload);

        assertSame(authEx, thrown, "Should rethrow the same SmbAuthException instance");
        verify(dest, times(1)).getAttributes();
        verify(dest, never()).setPathInformation(anyInt(), anyLong(), anyLong(), anyLong());
    }

    @Test
    @DisplayName("openCopyTargetFile throws NPE on null dest (invalid input)")
    void openCopyTargetFile_nullDest_throwsNPE() {
        // Arrange

    }

    @Test
    void testWriteSecurityBuffer() {
        // Test writeSecurityBuffer
        byte[] dest = new byte[8]; // Enough for length, max_length, offset
        byte[] src = "Test".getBytes();

        // Test with non-null source array
        int nextOffset = NtlmMessage.writeSecurityBuffer(dest, 0, src);

                        }
                        if (useNTSmbs) {
                            reqx.setParam(dest.fid, off, n, b, 0, n);
                            dest.send(reqx, resp);
                        } else {
                            req.setParam(dest.fid, off, n, b, 0, n);
                            dest.send(req, resp);
                        }
                    }

  /**
   * Copies bytes from this hash code into {@code dest}.
   *
   * @param dest the byte array into which the hash code will be written
   * @param offset the start offset in the data
   * @param maxLength the maximum number of bytes to write
   * @return the number of bytes written to {@code dest}
   * @throws IndexOutOfBoundsException if there is not enough room in {@code dest}
   */
  @CanIgnoreReturnValue

    static void writeULong(final byte[] dest, final int offset, final int ulong) {
        dest[offset] = (byte) (ulong & 0xff);
        dest[offset + 1] = (byte) (ulong >> 8 & 0xff);
        dest[offset + 2] = (byte) (ulong >> 16 & 0xff);
        dest[offset + 3] = (byte) (ulong >> 24 & 0xff);
    }

    static void writeUShort(final byte[] dest, final int offset, final int ushort) {
        dest[offset] = (byte) (ushort & 0xff);

   * previously at {@code src} has already been removed from the data structures.
   */
  private void moveEntryToIndex(int src, int dest) {
    if (src == dest) {
      return;
    }
    int predecessor = prevInInsertionOrder[src];
    int successor = nextInInsertionOrder[src];
    setSucceeds(predecessor, dest);
    setSucceeds(dest, successor);