Hi, I m a newbie. Again, stuck with a problem. I have created a package in Drools Guvnor as: Created two POJO. Driver and Car as following: Driver.java: package kijanowski.eu; public class Driver { private String name; private int age; private Car car; public Driver(String name, int age, Car car) { this.name = name; this.age = age; this.car = car; } . //Setter and Getters . } Car.java: package kijanowski.eu; public class Car { private String color; private double value; public Car() {} public Car(String color, double value) { this.color = color; this.value = value; } . //Setter and Getters . } Prepared its jar and uploaded to Guvnor as following: Both POJO are loaded successfully: Then I created a new rule as following: Then I verified, build and created Snapshot. Now, I prepared a client program to consume rules deployed in guvnor as following: package kijanowski.eu; import java.util.Collection; import java.util.Iterator; import org.drools.KnowledgeBase; import org.drools.agent.KnowledgeAgent; import org.drools.agent.KnowledgeAgentFactory; import org.drools.runtime.StatefulKnowledgeSession; public class GuvnorTest { public static final void main(String[] args) { KnowledgeAgent kagent = KnowledgeAgentFactory.newKnowledgeAgent("/Guvnor.properties"); KnowledgeBase kbase = kagent.getKnowledgeBase(); StatefulKnowledgeSession workingMemory = kbase.newStatefulKnowledgeSession(); Driver d = new Driver("Jarek", 20, null); workingMemory.insert(d); workingMemory.fireAllRules(); Collection c = workingMemory.getObjects(); for (Iterator i = c.iterator(); i.hasNext();) { d = (Driver)i.next(); System.out.println(" Age: " + d.getAge() + " Name: " + d.getName() + " Car: " + d.getCar() + " Object: " + d); } } } And Guvnor.properties is as following: url=http://localhost:10080/guvnor-5.5.0.Final-tomcat-6.0/org.drools.guvnor.G uvnor/package/myNewPackage/car_example_snapshot enableBasicAuthentication=true username=admin password=admin name=drooltest But when I run the client, I get following o/p: Age: 20 Name: Jarek Car: null Object: kijanowski.eu.Driver@15b9e68 I cannot see name changed to "Applicable" and cannot even see the o/p of sysout on server side: Can anyone please help me with this. Thanks. Best Regards Hushen Savani