Any DI lib would probably work, it depends on your preferences and use cases though. I'm personally a fan of Weld since its the reference implementation of the

Any DI lib would probably work, it depends on your preferences and use cases though. I'm personally a fan of Weld since its the reference implementation of the CDI spec. https://weld.cdi-spec.org/ https://weld.cdi-spec.org/ A friend of mine built an MVC library around Javalin that uses Dagger as the DI container: https://github.com/jehugaleahsa/javalin-mvc https://github.com/jehugaleahsa/javalin-mvc