Answer for your given question: Java + Oracle. They'll both be supported by legions of enterprise devs until shortly before the heat death of the universe.

Real answer: it depends. You've told us nothing about your application's business requirements, operating environment, or staffing availability.

I'd also caution on the idea "put aside what your devs are already familiar with" - different tech can give you different velocities, but either you accept a much lower velocity for a long initial period while your team spins up OR you accept a significant recruiting cost to hire new devs & teach them enough about the business to make good decisions.