I've had a mix of maintainable and rough apps on the rails side of things. I think with a good test suite, one can really build a solid app using Java these day

I've had a mix of maintainable and rough apps on the rails side of things. I think with a good test suite, one can really build a solid app using Java these days. As you said there's a lot more modern approaches now as well. It's something I'd like to explore maybe a bit later this year, after I do some more messing around with Rust :) Given it sounds like you use Java, what tools/stack do you use with it day to day?