I downloaded and complided the source code with maven, and i created a jar with missing packages. It works. Greetings! -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Drools-5-2-0M1-grid-package-tp2514851p2523185.html Sent from the Drools - User mailing list archive at Nabble.com.