This Java version of a calendaring system combines Avrom Finkelstein's
work adapting Rheingold's C++ algorithm with some of hebcal's logic.

BUILD: use maven-2 to build, like so:

   mvn compile

to build a distribution, try
  
   mvn assembly:assembly

http://maven.apache.org/
or, because the website is impenetrable:
http://maven.apache.org/guides/getting-started/maven-in-five-minutes.html