Another drawing editor for LaTeX with PSTricks & TikZ
jPicEdt is an extensible internationalized vector-based drawing editor for LaTeX and related packages (TikZ, PsTricks,...), written in Java. It is also a library of reusable high-level graphic primitives.
JSchematron is a thin wrapper around the official Schematron stylesheets. It is intended to make Schematron transformations and validations from java simple. As such, the main goals are simplicity, ease-of-use and low learning curve.