1. download shade-protobuf-3.4.0.jar from https://mvnrepository.com/artifact/com.aliyun.openservices.eas/shade-protobuf/3.4.0

2. export CLASSPATH=$CLASSPATH:/path/shade-protobuf-3.4.0.jar

3. flatc -j ./request.fbs

4. javac perf.java

5. java perf
