JSR-331 Standard

JCP

JSR331 “Java Constraint Programming API”  is a JCP Specification Standard that has been developed under the terms of the www.JCP.org. It has been officially approved by the JCP Executive Committee as the Final Release on March 7, 2012.

Look at the www.jsr331.org to read more about JSR331 and to download the related documentation and implementation software. Everything is completely free and open sourced.