Hi, Are you using the latest brms build ? if the anwser is not, please download the latest version from https://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/t... it was a missing class in the drools-core library. On 9/30/07, Martin Fuzzey <mfuzzey(a)neuf.fr&gt; wrote: > > Hi, > > I am trying to run the insurance example with the brms > after replacing the client mvel jar with the one used by the brms web > app as mentionned on this list I get this exeception (full stacktrace > below) > > java.lang.ClassNotFoundException: > org.drools.rule.builder.dialect.mvel.MVELDialect$ModifyInterceptor > > adding the drools-compiler-4.0.1.jar to the client classpath fixes this > but I thought the rules were supposed to be compiled by the brms. Indeed > the documentation says : > > The rule agent is a component which is embedded in the core runtime of > the rules engine. To use this, you don't need any extra components. In > fact, if you are using the BRMS, your application should only need to > include the drools-core.jar in its classpath, and no other rules > specific dependencies. > > so am I misunderstanding something or is this a bug? > > Thanks, > > Martin Fuzzey > > > RuleAgent(insuranceconfig) INFO (Sun Sep 30 14:02:33 CEST 2007): > Configuring with newInstance=true, secondsToRefresh=30 > RuleAgent(insuranceconfig) INFO (Sun Sep 30 14:02:33 CEST 2007): > Configuring package provider : URLScanner monitoring URLs: > > http://localhost:8080/drools-jbrms/org.drools.brms.JBRMS/package/org.acme... > with local cache dir of /home/martin/tmp > RuleAgent(insuranceconfig) EXCEPTION (Sun Sep 30 14:02:34 CEST 2007): > org.drools.rule.builder.dialect.mvel.MVELDialect$ModifyInterceptor . > Stack trace should follow. > java.lang.ClassNotFoundException: > org.drools.rule.builder.dialect.mvel.MVELDialect$ModifyInterceptor > at java.net.URLClassLoader$1.run(URLClassLoader.java:200) > at java.security.AccessController.doPrivileged(Native Method) > at java.net.URLClassLoader.findClass(URLClassLoader.java:188) > at java.lang.ClassLoader.loadClass(ClassLoader.java:306) > at sun.misc.Launcher$AppClassLoader.loadClass (Launcher.java > :276) > at java.lang.ClassLoader.loadClass(ClassLoader.java:251) > at java.lang.ClassLoader.loadClassInternal(ClassLoader.java > :319) > at java.lang.Class.forName0(Native Method) > at java.lang.Class.forName(Class.java:247) > at > java.io.ObjectInputStream.resolveClass(ObjectInputStream.java:604) > at > org.drools.common.DroolsObjectInputStream.resolveClass( > DroolsObjectInputStream.java :74) > at > java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1575) > at > java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1496) > at > java.io.ObjectInputStream.readOrdinaryObject (ObjectInputStream.java > :1732) > at > java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) > at java.io.ObjectInputStream.readObject(ObjectInputStream.java > :351) > at java.util.HashMap.readObject (HashMap.java:1029) > at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke( > DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke (Method.java:597) > at > java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974) > at > java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1846) > at > java.io.ObjectInputStream.readOrdinaryObject (ObjectInputStream.java > :1753) > at > java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) > at > java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945) > at > java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869) > at > java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java > :1753) > at > java.io.ObjectInputStream.readObject0(ObjectInputStream.java :1329) > at > java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945) > at > java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869) > at > java.io.ObjectInputStream.readOrdinaryObject (ObjectInputStream.java > :1753) > at > java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) > at > java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945) > at > java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869) > at > java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java > :1753) > at > java.io.ObjectInputStream.readObject0(ObjectInputStream.java :1329) > at > java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945) > at > java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869) > at > java.io.ObjectInputStream.readOrdinaryObject (ObjectInputStream.java > :1753) > at > java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) > at java.io.ObjectInputStream.readObject(ObjectInputStream.java > :351) > at java.util.HashMap.readObject (HashMap.java:1029) > at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccesso > rImpl.java:25) > at java.lang.reflect.Method.invoke (Method.java:597) > at > java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974) > at > java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1846) > at > java.io.ObjectInputStream.readOrdinaryObject (ObjectInputStream.java > :1753) > at > java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) > at java.io.ObjectInputStream.readObject(ObjectInputStream.java > :351) > at org.drools.rule.Package.readExternal (Package.java:189) > at > java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1792) > at > java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java > :1751) > at > java.io.ObjectInputStream.readObject0 (ObjectInputStream.java:1329) > at java.io.ObjectInputStream.readObject(ObjectInputStream.java > :351) > at > org.drools.agent.HttpClientImpl.fetchPackage(HttpClientImpl.java:54) > at org.drools.agent.URLScanner.readPackage (URLScanner.java > :137) > at org.drools.agent.URLScanner.getChangeSet(URLScanner.java > :109) > at > org.drools.agent.URLScanner.loadPackageChanges(URLScanner.java:88) > at org.drools.agent.RuleAgent.checkForChanges (RuleAgent.java > :327) > at org.drools.agent.RuleAgent.refreshRuleBase(RuleAgent.java > :295) > at org.drools.agent.RuleAgent.configure(RuleAgent.java:281) > at org.drools.agent.RuleAgent.init(RuleAgent.java :205) > at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:173) > at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:145) > at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java :213) > at > org.acme.insurance.launcher.InsuranceBusiness.loadRuleBase( > InsuranceBusiness.java:26) > at > org.acme.insurance.launcher.InsuranceBusiness.executeExample( > InsuranceBusiness.java:14) > at org.acme.insurance.launcher.MainClass.main(MainClass.java > :13) > RuleAgent(insuranceconfig) WARNING (Sun Sep 30 14:02:35 CEST 2007): Was > unable to load a class when loading a package. Perhaps it is missing > from this appl > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > -- Fernando Meyer http://fmeyer.org JBoss Rules Core Developer fmcamargo(a)gmail.com