git clone https://github.com/zonghaishang/dubbo.git
cd dubbo
git checkout prepare_for_http2
mvn clean install -DskipTests -Dmaven.test.skip=true -Dmaven.javadoc.skip=true
git clone https://github.com/zonghaishang/dubbo-rpc-http2.git
cd dubbo-rpc-http2
mvn clean install -DskipTests -Dmaven.test.skip=true -Dmaven.javadoc.skip=true