Does clicking on the jar work for you? The jar has been marked as executable and includes a prelude that uses the included jvm/jre.
If you wish to run it from the command line `./bin/java -Xdebug -XX:-OmitStackTraceInFastThrow -XX:MaxGCPauseMillis=20 -Dhttps.protocols=TLSv1 -Drobinson.version=0.0.1-SNAPSHOT -jar robinson.jar` should work too. This is the command embedded in robinson.jar which you can verify using `head robinson.jar`