[rules-users] ClassCastException using RuleAgent

Hello there! I'm getting an classcastexception when I try to insert facts on my RuleAgent: Properties props = new Properties(); props.put("url", " http://localhost:8080/drools-jbrms/org.drools.brms.JBRMS/package/com.acme... "); props.put("newInstance", "true"); props.put("name","testagent"); RuleAgent agent = RuleAgent.newRuleAgent(props); StatefulSession session = agent.getRuleBase().newStatefulSession(); session.insert(fact); The error happens on the session.insert method. It also happens inside my Seam application When I try to insert the facts on the working memory. My drools package contains the model that I've extracted from my seam application. If I run it using a local drl file, it works fine. This problem only happens with the rule agent Could someone give me a hand on this? Regards -- "In a world without fences and walls, who needs Gates and Windows?"