Looking to use Groovy with [insert your favorite Java library here]? We've got you covered! Groovy integrates very well (and sometimes greatly extends) a large number of existing Java libraries and tools:
Many "Modules" have been contributed to Groovy, most of which provide enhanced integration and extension for various tasks.
Finally, if you don't see what you're looking for in the above list, remember – Groovy is Java! Just put that JAR in your classpath and start pounding at your keyboard as if it was Java.