jOOQ / jOOQ

jOOQ is the best way to write SQL in Java

vladmihalcea / hypersistence-utils

The Hypersistence Utils library (previously known as Hibernate Types) gives you Spring and Hibernate utilities that can help you get the most out of your data access layer.

kaikramer / keystore-explorer

KeyStore Explorer is a free GUI replacement for the Java command-line utilities keytool and jarsigner.

Mojang / DataFixerUpper

A set of utilities designed for incremental building, merging and optimization of data transformations.

dlsc-software-consulting-gmbh / GemsFX

A collection of JavaFX controls and utilities.

wnameless / json-flattener

A Java utility is designed to FLATTEN nested JSON objects and even more to UNFLATTEN them back