4.0.0 jbox2d org.jbox2d 2.1.2.2 jbox2d-testbed jbox2d-testbed jar http://code.google.com/p/jbox2d/ The testbed for JBox2D, a 2d java physics engine, ported from the C++ Box2d engine. org.jbox2d jbox2d-library 2.1.2.2 jar compile org.slf4j slf4j-api 1.6.1 jar compile org.slf4j slf4j-log4j12 1.6.1 jar compile log4j log4j 1.2.14 jar compile org.jbox2d jbox2d-serialization 1.0.0 jar compile