[meddlepal]

I feel like I get pretty far with just https://javalin.io/ or http://sparkjava.com/. They're pretty similar but Javalin is being built by a maintainer of Spark and inherits many of the lessons learned from it.

These are basically thin wrappers on Jetty.

SQL: Mybatis or JDBI.

SQL Migrations: Flyway

JSON: Jackson, usually

Redis: Jedis