Apache Ant is a tool for building Java applications from the source file, which is required by j5 when packaging all the workflow (Gemsbok) source files into a single compiled form for deployment to Tomcat.
Download the Apache Ant version 1.9.7 (8MB) file archive (ZIP).
To install Apache Ant, extract the archive contents into an appropriately named folder, for example:
Apache Ant 1.9.7 has been tested on Windows 8 and 10. Later versions may not be supported.