I am new to Java environment, I’m trying to run a Coap server using Californium https://github.com/eclipse-californium/californium I cloned the git repo. then ran mvn clean install in the repo folder. I now want to run the hello world demo in californium/demo-apps/cf-helloworld-server/ what is the next step? I opened the folder cd demo-apps/cf-helloworld-server then ran mvn clean install mvn compile it