Java EE modules-based application - all using same JBoss or standalone JARs

I'm about to develop a JavaEE application and in order to keep it clean and maintainable, I'll be splitting my solution in 3 small modules.

Which solution seems to fit me the best:

1) create 3 java projects WAR style and deploy them all in a single JBoss.

2) Create embedded app (e.g. Spring Boot) and run each JAR separated.

PS: my modules does not rely on each other.

Thanks and i'm here if more details needed.