Hi Team, I'm a newbie to Drools. Please help me here. 1. I have created a Package named "org.sample". 2. I have created a Model named "TestModel" in the same package. 3. I have created a Fact named "Number" in the same Model. 4. "Number" fact is as following: Fact <http://drools.46999.n3.nabble.com/file/n4021008/01_Fact.bmp> 5. Then I have created a category named "TestCategory". 6. Then created a sample Rule named "ruletest" in that category. 7. Rule is created as following: rule "numberone is equal to numbertwo" when n : Number(numberone == numbertwo); then n.setMessage("numberone is equal to numbertwo"); end rule "numberone is greater than numbertwo" when n : Number(numberone > numbertwo); then n.setMessage("numberone is greater than numbertwo"); end rule "numberone is less than numbertwo" when n : Number(numberone < numbertwo); then n.setMessage("numberone is less than numbertwo"); end 8. Built the package and created the snapshot. 9. Wrote a JAVA POJO client as following: package org.sample; import org.drools.RuleBase; import org.drools.WorkingMemory; import org.drools.agent.RuleAgent; import org.drools.definition.type.FactType; public class DroolGuvnor { public static void main(String[] args) throws InstantiationException, IllegalAccessException { RuleAgent ruleAgent = RuleAgent.newRuleAgent("/Guvnor.properties"); RuleBase ruleBase = ruleAgent.getRuleBase(); FactType factType = ruleBase.getFactType("org.sample.Number"); Object obj = factType.newInstance(); factType.set(obj, "numberone", 2); factType.set(obj, "numbertwo", 1); WorkingMemory workingMemory = ruleBase.newStatefulSession(); workingMemory.insert(obj); workingMemory.fireAllRules(); System.out.println(factType.get(obj, "message")); } } 10. The "guvnor.properties" file is as following: url=http://localhost:10080/guvnor-5.5.0.Final-tomcat-6.0/org.drools.guvnor.G uvnor/package/org.sample/TestSnapshot enableBasicAuthentication=true username=admin password=admin name=drooltest 11. But, when I run the client, I get following exception: SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder". SLF4J: Defaulting to no-operation (NOP) logger implementation SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details. Exception in thread "main" java.lang.ClassCastException: [Lorg.drools.rule.Package; cannot be cast to org.drools.rule.Package at org.drools.agent.HttpClientImpl.fetchPackage(HttpClientImpl.java:86) at org.drools.agent.URLScanner.readPackage(URLScanner.java:171) at org.drools.agent.URLScanner.getChangeSet(URLScanner.java:143) at org.drools.agent.URLScanner.loadPackageChanges(URLScanner.java:119) at org.drools.agent.RuleAgent.checkForChanges(RuleAgent.java:431) at org.drools.agent.RuleAgent.refreshRuleBase(RuleAgent.java:383) at org.drools.agent.RuleAgent.configure(RuleAgent.java:368) at org.drools.agent.RuleAgent.init(RuleAgent.java:268) at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:208) at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:168) at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:277) at org.sample.DroolGuvnor.main(DroolGuvnor.java:10) Please help on this. Thanks. Best Regards, Hushen Savani