final int start = bufferIndex;
        final int structureSize = SMBUtil.readInt2(buffer, bufferIndex);
        if (structureSize == 9) {
            return super.readErrorResponse(buffer, bufferIndex);
        }
        if (structureSize != 49) {
            throw new SMBProtocolDecodingException("Expected structureSize = 49");
        }
        bufferIndex += 4;

        final int start = bufferIndex;
        final int structureSize = SMBUtil.readInt2(buffer, bufferIndex);
        if (structureSize == 9) {
            return this.readErrorResponse(buffer, bufferIndex);
        }
        if (structureSize != 17) {
            throw new SMBProtocolDecodingException("Expected structureSize = 17");
        }