Hi Rod, I had a similar error and I solved it by upgrading to Drools 4.0.3 on the BRMS and for the RuleAgent. See Jira: http://jira.jboss.com/jira/browse/JBRULES-1245 Hope this helps, Len -----Original Message----- From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of kissro(a)lidp.com Sent: Friday, November 16, 2007 1:23 PM To: rules-users(a)lists.jboss.org Subject: [rules-users] Exception error when using RuleAgent Hello, I created a rule in BRMS and downloaded the package to a directory. I'm using RuleAgent to load the RuleBase using the following code: RuleAgent agent = RuleAgent.newRuleAgent("/brmsunderwritingrules.properties"); RuleBase ruleBase = agent.getRuleBase(); I'm getting the following errors. Could someone tell me what I'm doing wrong and/or how to fix this please. ERROR [STDERR] RuleAgent(underwritingconfig) INFO : Configuring with newInstance=true, secondsToRefresh=30 ERROR [STDERR] RuleAgent(underwritingconfig) INFO : Configuring package provider : DirectoryScanner scanning dir: \deployed\rules found 2 file(s). ERROR [STDERR] java.lang.ClassCastException:java.util.Collections$EmptyMap ERROR [STDERR] at org.drools.rule.Package.readExternal ERROR [STDERR] at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1753) ERROR [STDERR] at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1711 ) ERROR [STDERR] at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299) ERROR [STDERR] at java.io.ObjectInputStream.readObject(ObjectInputStream.java:339) ERROR [STDERR] at org.drools.agent.FileScanner.readPackage(FileScanner.java:109) ERROR [STDERR] at org.drools.agent.FileScanner.getChangeSet(FileScanner.java:79) ERROR [STDERR] at org.drools.agent.FileScanner.loadPackageChanges(FileScanner.java:57) ERROR [STDERR] at org.drools.agent.DirectoryScanner.loadPackageChanges(DirectoryScanner.ja va:43) ERROR [STDERR] at org.drools.agent.RuleAgent.checkForChanges(RuleAgent.java:330) ERROR [STDERR] at org.drools.agent.RuleAgent.refreshRuleBase(RuleAgent.java:298) ERROR [STDERR] at org.drools.agent.RuleAgent.configure(RuleAgent.java:284) ERROR [STDERR] at org.drools.agent.RuleAgent.init(RuleAgent.java:208) ERROR [STDERR] at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:176) ERROR [STDERR] at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:148) Thank You Rod _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users