if ( str == null ) {
            return new byte[0];
        }
        return str.getBytes(encoding);
    }


    /**
     * 
     * @param str
     * @return the string as bytes (UTF16-LE)
     */
    public static byte[] getUNIBytes ( String str ) {
        return getBytes(str, UNI_ENCODING);
    }


    /**
     * 
     * @param str
     * @return the string as bytes (ASCII)
     */

        (byte) 0x00, (byte) 0x00
    };

    public static final byte[] SMB2_HEADER = {
        (byte) 0xFE, (byte) 'S', (byte) 'M', (byte) 'B', // ProtocolId
        (byte) 64, (byte) 0x00, // StructureSize (LE)
        (byte) 0x00, (byte) 0x00, // CreditCharge (reserved 2.0.2)
        (byte) 0x00, (byte) 0x00, // ChannelSequence
        (byte) 0x00, (byte) 0x00, // Reserved

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