[rules-users] help

SHIMI Abdelouahad ( Prestataire ) Abdelouahad.SHIMI.prestataire at unibail-rodamco.com
Fri Jun 19 08:14:08 EDT 2009


I was deploy Guvnor(drools-5.0.0.CR1-guvnor) as an exploded archive on
the JBoss Application Server(version jboss-4.2.3.GA).
And I was 
*	Create categories, ok
*	Create package,ok
*	Importe model, ok
*	Create rule, ok

And create a simple Drools application(with Eclipse version 3.4 and
pluging drools 5.0) that will use a package served by Guvnor:
public class GuvnorTest {

        public static final void main(String[] args) {

                RuleAgent agent =
RuleAgent.newRuleAgent("/Guvnor.properties");
                RuleBase ruleBase = agent.getRuleBase();

                WorkingMemory workingMemory =
ruleBase.newStatefulSession();

                Driver d = new Driver("Jarek", 20, null);
                workingMemory.insert(d);

                workingMemory.fireAllRules();

                for (Iterator i = workingMemory.iterateObjects();
i.hasNext();) {
 
System.out.println(i.next().getClass().getCanonicalName());
                }
        }

}

The properties file:
url=http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package
/myNewPackage/LATEST

And When the application is run I have this Exception:

RuleAgent(default) EXCEPTION (Thu Jun 18 10:46:40 CEST 2009): null.
Stack trace should follow.
java.io.OptionalDataException
	at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1310)
	at
java.io.ObjectInputStream.readObject(ObjectInputStream.java:339)
	at
org.drools.util.DroolsStreamUtils.streamIn(DroolsStreamUtils.java:189)
	at
org.drools.util.DroolsStreamUtils.streamIn(DroolsStreamUtils.java:158)
	at
org.drools.agent.HttpClientImpl.fetchPackage(HttpClientImpl.java:50)
	at org.drools.agent.URLScanner.readPackage(URLScanner.java:148)
	at org.drools.agent.URLScanner.getChangeSet(URLScanner.java:120)
	at
org.drools.agent.URLScanner.loadPackageChanges(URLScanner.java:96)
	at
org.drools.agent.RuleAgent.checkForChanges(RuleAgent.java:410)
	at
org.drools.agent.RuleAgent.refreshRuleBase(RuleAgent.java:362)
	at org.drools.agent.RuleAgent.configure(RuleAgent.java:347)
	at org.drools.agent.RuleAgent.init(RuleAgent.java:247)
	at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:187)
	at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:147)
	at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:256)
	at kijanowski.eu.GuvnorTest.main(GuvnorTest.java:13)
Exception in thread "main" java.lang.NullPointerException
	at
org.drools.agent.RuleAgent.refreshRuleBase(RuleAgent.java:363)
	at org.drools.agent.RuleAgent.configure(RuleAgent.java:347)
	at org.drools.agent.RuleAgent.init(RuleAgent.java:247)
	at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:187)
	at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:147)
	at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:256)
	at kijanowski.eu.GuvnorTest.main(GuvnorTest.java:13)

I am realy stuck in the middle please please please please please  help.





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