Comment by dig1

And don’t hesitate to use a JRE (Java Runtime Environment) if all you need is to run java/jvm applications - assuming the application doesn’t already ship with its own runtime. A JDK is roughly 140 MB, while a JRE is about 60 MB (and can be further minimized). I’ve seen installations of the full OpenJDK just to run apps, which is unnecessary in most cases.