[jimbokun]

For Java projects, scripts can be written in a JVM language like Clojure or JRuby. Can still leverage the Java code in the rest of your project, while writing in a more dynamic, interactive language.

[hocuspocus]

If you think JBang isn't dynamic enough for such scenario, check this out: https://scala-cli.virtuslab.org/scripting

Scala is a lot less exotic than Clojure or JRuby to most Java devs, as expressive as Groovy, yet fully type-checked.