Hi guys, I am trying to execute rules passing a proxy object to it. The object myObject is a javassist proxy object: package.MyClass_$$_javassist_2 Properties p = new Properties(); p.put("url", "http://localhost:8090/drools-guvnor/org.drools.guvnor.Guvnor/package/pacote /LATEST"); RuleAgent agent = RuleAgent.newRuleAgent(p); RuleBase ruleBase = agent.getRuleBase(); StatelessSession ksession = ruleBase.newStatelessSession(); ksession.execute(new Object[] {myObject}); So, with this proxy object, my rule is not executed. If I pass a real instance, the rule works fine. package mypackage; import package.MyClass; global java.util.List list rule "Testing" dialect "java" when f: MyClass() then System.out.println("Exist "+f.getDay()); f.setDay("15"); end Can anybody help me ? Thanks, Rogerio