The source can be obtained by cloning the Github project git clone https://github.com/functionaljava/functionaljava.git.

Github also provides zips of the source code, so you can download the zip of the master branch.

The recommended way to download the project is by including the Functional Java library from your project build tool. See the quickstart guide for how to do this.

The current stable release of Functional Java is 4.8.1. Release notes for each release are available below: