* because there's no header.
         */

        if (this.errorCode != 0 || this.andxCommand == (byte) 0xFF) {
            this.andxCommand = (byte) 0xFF;
            this.andx = null;
        } else if (this.andx == null) {
            this.andxCommand = (byte) 0xFF;
            throw new RuntimeCIFSException("no andx command supplied with response");
        } else {

        buffer[0] = 4; // wordCount at position 0
        buffer[1] = (byte) 0x42; // andxCommand
        SMBUtil.writeInt2(0, buffer, 3); // andxOffset = 0 (triggers Snap workaround)
        SMBUtil.writeInt2(20, buffer, 9); // byteCount

        int length = testBlock.readAndXWireFormat(buffer, 0);

        assertTrue(length > 0);
        // andxCommand is private, but we can verify the behavior
        assertNull(testBlock.getAndx());

     * actually read. Incedentally this is important to the
     * AndXServerMessageBlock class that needs to potentially
     * read in another smb's parameter words and bytes based on
     * information in it's andxCommand, andxOffset, ...etc.
     */

    /**
     * Writes the parameter words portion of the SMB message to the wire format.
     *
     * @param dst the destination buffer