how to run LightWeight parallel java JAR file in linux

Question

i need to run a program called Node that will run the the same program with different parameters. This has to be done in school linux machine so it does not have enough memory space. So the professor said to use this command to run it: and called it Lightweight Java

   java -XX:ParallelGCThreads=1 -XX:ConcGCThreads=1 -Xmx5m -Xms5m -Xss5m HelloWorld 

but how would this command work for .jar file? this is a shell script for the run without the lightweight command.

   alias node="java -cp node.jar Node"
   node 0 100 5 "MSG" 20 1 2 &
   node 1 100 1 0 2 &
   node 2 100 2 0 1 3 4 &
   node 3 100 3 2 4 &
   node 4 100 4 2 3 5 &
   node 5 100 5 4 &

how can i turn this to lightweight?