There are a number of tools and libraries I cannot imagine myself writing Java code without these days. Traditionally, things like Google Guava or Joda Time (at least for the pre-Java 8 era) are among the dependencies that I end up throwing into my projects most of the time, regardless of the specific domain at hand.
Lombok surely deserves its place in my POMs or Gradle builds as well, albeit not being a typical library/framework utility. Lombok has been around for quite a while now (first released in 2009) and has matured a lot since. However, I have always felt it deserved more attention – it is an amazing way of dealing with Java’s natural verbosity.