Update jolie2java to Java 1.8.
Update jolie2java to Java 1.8.

jolie-projects/jolie-async,innopolis-jolie-smt-typechecker/jolie,mawolf/jolie,mawolf/jolie,agwe/jolie,agwe/jolie,innopolis-jolie-smt-typechecker/jolie,jolie-projects/jolie-async,mawolf/jolie,jolie-projects/jolie-async,mawolf/jolie,innopolis-jolie-smt-typechecker/jolie,jolie-projects/jolie-async,agwe/jolie,agwe/jolie,innopolis-jolie-smt-typechecker/jolie