int writeString(final String str, final byte[] dst, final int dstIndex) {
        return writeString(str, dst, dstIndex, useUnicode);
    }

    int writeString(final String str, final byte[] dst, int dstIndex, final boolean useUnicode) {
        final int start = dstIndex;

        try {
            if (useUnicode) {
                // Unicode requires word alignment
                if ((dstIndex - headerStart) % 2 != 0) {

        nativeLanMan = readString(buffer, bufferIndex, start + byteCount, 255, useUnicode);
        bufferIndex += stringWireLength(nativeLanMan, bufferIndex);
        if (!extendedSecurity) {
            primaryDomain = readString(buffer, bufferIndex, start + byteCount, 255, useUnicode);
            bufferIndex += stringWireLength(primaryDomain, bufferIndex);
        }

        return bufferIndex - start;

                    }
                } else if (DISABLE_PLAIN_TEXT_PASSWORDS) {
                    throw new RuntimeException("Plain text passwords are disabled");
                } else if (useUnicode) {
                    // plain text
                    final String password = auth.getPassword();
                    lmHash = new byte[0];
                    ntHash = new byte[(password.length() + 1) * 2];

    void send(final ServerMessageBlock request, final ServerMessageBlock response) throws SmbException {

        connect(); /* must negotiate before we can test flags2, useUnicode, etc */

        request.flags2 |= flags2;
        request.useUnicode = useUnicode;
        request.response = response; /* needed by sign */
        if (request.digest == null) {
            request.digest = digest; /* for sign called in encode */

        dst[start + ANDX_RESERVED_OFFSET] = (byte) 0x00;
        andxOffset = dstIndex - headerStart;
        writeInt2(andxOffset, dst, start + ANDX_OFFSET_OFFSET);

        andx.useUnicode = useUnicode;
        if (andx instanceof AndXServerMessageBlock) {

            /*
             * A word about communicating header info to andx smbs
             *

                this.useUnicode = true;
            } else {
                this.useUnicode = false;
                this.negotiatedFlags2 &= 0xFFFF ^ SmbConstants.FLAGS2_UNICODE;
            }
        } else {
            this.useUnicode = ctx.getConfig().isUseUnicode();
        }

        if (this.useUnicode) {
            log.debug("Unicode is enabled");
        } else {

        }

        return dstIndex - start;
    }

    @Override
    int writeBytesWireFormat(final byte[] dst, int dstIndex) {
        final int start = dstIndex;

        if (useUnicode) {
            dst[dstIndex] = (byte) '\0';
            dstIndex++;
        }
        dstIndex += writeString(path, dst, dstIndex);

        return dstIndex - start;
    }

    @Override

        assertTrue(next.writeParamCalls > 0, "chained SMB parameter words should be written");
        assertTrue(next.writeBytesCalls > 0, "chained SMB bytes should be written");
    }

    @Test
    @DisplayName("decode basic AndX block with no chaining")
    void testDecodeBasicNoAndx() {
        DummyAndXBlock block = new DummyAndXBlock() {

     * @return the useUnicode
     */
    public final boolean isUseUnicode() {
        return this.useUnicode;
    }

    /**
     * Sets whether to use Unicode encoding for this message
     * @param useUnicode
     *            the useUnicode to set
     */
    public final void setUseUnicode(final boolean useUnicode) {
        this.useUnicode = useUnicode;
    }

    /**

        final int start = dstIndex;

        dst[dstIndex] = (byte) 0x04;
        dstIndex++;
        dstIndex += writeString(oldFileName, dst, dstIndex);
        dst[dstIndex++] = (byte) 0x04;
        if (useUnicode) {
            dst[dstIndex++] = (byte) '\0';
        }
        dstIndex += writeString(newFileName, dst, dstIndex);

        return dstIndex - start;
    }

    @Override