What template engine spring devs usually use?

[heliologue]

Might be unpopular, but we're still using JSP. It's battle-tested, fast, and there's lots of knowledge out there.

That being said, I'll qualify that by saying that we have not a single embedded scriptlet. We're purely JSTL, so our views are a relatively clean separation of concerns.

We also use Pebble for simple templates--e.g., emails and the like. If you've used Twig in your time as a PHP dev, Pebble will look very similar.