Thanks, next release will use mvel 2.0.6. []s Edson
2009/1/13 Paul Sentosa <[email protected]> > Yes, it works with 2.0.6. Otherwise I should define the String separately > (String abc = "a string"; list.add(abc); in order for the consequence to be > executed correctly) > > Thanks Edson! > Regards > Paul > > ------------------------------ > *From:* Edson Tirelli <[email protected]> > *To:* Rules Users List <[email protected]> > *Sent:* Tuesday, January 13, 2009 5:03:32 PM > *Subject:* Re: [rules-users] No ClassLoaders found for: String > > > Yes, I see. Can you please manually update your local mvel jar to > version 2.0.6 (latest) and try again? I am talking to the MVEL author to > make sure the problem is fixed in the latest version, but of course, if you > can confirm this on your side, it would be best. > > []s > Edson > > 2009/1/13 psentosa <[email protected]> > >> >> I'm using maven to manage my libraries, thus I add these line in my >> pom.xml: >> <dependency> >> <groupId>org.drools</groupId> >> <artifactId>drools-api</artifactId> >> <version>5.0.0.M4</version> >> </dependency> >> <dependency> >> <groupId>org.drools</groupId> >> <artifactId>drools-core</artifactId> >> <version>5.0.0.M4</version> >> </dependency> >> >> And I can see that mvel2-2.0.4 has been added, besides drools-api and core >> 5.0.0.M4 >> Thanks for the reply >> >> >> >> Edson Tirelli-3 wrote: >> > >> > What MVEL version are you using? >> > >> > []s >> > Edson >> > >> > 2009/1/13 psentosa <[email protected]> >> > >> >> >> >> Hallo, >> >> >> >> I have a rule like this, defined in Guvnor: >> >> when >> >> Activity ( $date : date, workingTime > 240) >> >> >> >> then >> >> System.out.println("Working time limit has been reached"); >> >> violatedRegulation.add(new String("regulation.general.working1")); >> >> >> >> >> >> violatedRegulation is a List<String> which I set as a global because >> >> later >> >> on I will extract the content of that list which is a key defined in a >> >> properties file >> >> >> >> ksession.setGlobal("violatedRegulation", violatedRegulation); >> >> ksession.executeObject(activity); >> >> >> >> >> >> but then I got the following exception: >> >> 15:52:59,687 INFO [STDOUT] Working time limit has been reached >> >> 15:52:59,687 ERROR [MyExceptionInterceptor] [Error: could not create >> >> constructor: No ClassLoaders found for: String ] >> >> [Near : {... Unknown ....}] >> >> ^ >> >> org.drools.runtime.rule.ConsequenceException: [Error: could not create >> >> constructor: No ClassLoaders found for: String ] >> >> [Near : {... Unknown ....}] >> >> ^ >> >> at >> >> >> >> >> org.drools.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:23) >> >> at >> >> org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:918) >> >> at >> >> org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:871) >> >> at >> >> org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1035) >> >> at >> >> >> >> >> org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:612) >> >> at >> >> >> >> >> org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:589) >> >> at >> >> >> >> >> org.drools.impl.StatelessKnowledgeSessionImpl.executeObject(StatelessKnowledgeSessionImpl.java:158) >> >> .................. >> >> >> >> Caused by: [Error: could not create constructor: No ClassLoaders found >> >> for: >> >> String ] >> >> [Near : {... Unknown ....}] >> >> ^ >> >> at >> >> >> >> >> org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.optimizeObjectCreation(ReflectiveAccessorOptimizer.java:805) >> >> at >> >> >> >> >> org.mvel2.optimizers.dynamic.DynamicOptimizer.optimizeObjectCreation(DynamicOptimizer.java:80) >> >> at >> >> >> >> >> org.mvel2.ast.NewObjectNode.getReducedValueAccelerated(NewObjectNode.java:148) >> >> at >> >> >> org.mvel2.compiler.ExecutableAccessor.getValue(ExecutableAccessor.java:37) >> >> at >> >> >> >> >> org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.getMethod(ReflectiveAccessorOptimizer.java:590) >> >> at >> >> >> >> >> org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileGetChain(ReflectiveAccessorOptimizer.java:285) >> >> at >> >> >> >> >> org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.optimizeAccessor(ReflectiveAccessorOptimizer.java:134) >> >> at >> >> >> >> >> org.mvel2.optimizers.dynamic.DynamicOptimizer.optimizeAccessor(DynamicOptimizer.java:61) >> >> at >> >> org.mvel2.ast.ASTNode.getReducedValueAccelerated(ASTNode.java:127) >> >> at org.mvel2.MVELRuntime.execute(MVELRuntime.java:91) >> >> at >> >> >> org.mvel2.compiler.CompiledExpression.getValue(CompiledExpression.java:101) >> >> at org.mvel2.MVEL.executeExpression(MVEL.java:1025) >> >> at >> >> org.drools.base.mvel.MVELConsequence.evaluate(MVELConsequence.java:89) >> >> at >> >> org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:909) >> >> ... 97 more >> >> Caused by: java.lang.ClassNotFoundException: No ClassLoaders found for: >> >> String >> >> at org.jboss.mx <http://org.jboss.mx.loading.LoadMgr3.be> >> .loading.LoadMgr3.beginLoadTask(LoadMgr3.java:306) >> >> at >> >> >> >> org.jboss.mx >> .loading.RepositoryClassLoader.loadClassImpl(RepositoryClassLoader.java:521) >> >> at >> >> >> >> >> org.jboss.mx.loading.RepositoryClassLoader.loadClass(RepositoryClassLoader.java:415) >> >> 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:164) >> >> at org.mvel2.util.ParseTools.createClass(ParseTools.java:458) >> >> at org.mvel2.util.ParseTools.findClass(ParseTools.java:796) >> >> at >> >> >> >> >> org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileConstructor(ReflectiveAccessorOptimizer.java:832) >> >> at >> >> >> >> >> org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.optimizeObjectCreation(ReflectiveAccessorOptimizer.java:799) >> >> ... 110 more >> >> >> >> Any help would be very appreciated >> >> >> >> ps: the very same rule worked with drools 4.0.7 >> >> >> >> Regards >> >> >> >> >> >> >> >> >> >> -- >> >> View this message in context: >> >> >> http://www.nabble.com/No-ClassLoaders-found-for%3A-String-tp21437370p21437370.html >> >> Sent from the drools - user mailing list archive at Nabble.com. >> >> >> >> _______________________________________________ >> >> rules-users mailing list >> >> [email protected] >> >> https://lists.jboss.org/mailman/listinfo/rules-users >> >> >> > >> > >> > >> > -- >> > Edson Tirelli >> > JBoss Drools Core Development >> > JBoss, a division of Red Hat @ www.jboss.com >> > >> > _______________________________________________ >> > rules-users mailing list >> > [email protected] >> > https://lists.jboss.org/mailman/listinfo/rules-users >> > >> > >> >> -- >> View this message in context: >> http://www.nabble.com/No-ClassLoaders-found-for%3A-String-tp21437370p21438374.html >> Sent from the drools - user mailing list archive at Nabble.com. >> >> _______________________________________________ >> rules-users mailing list >> [email protected] >> https://lists.jboss.org/mailman/listinfo/rules-users >> > > > > -- > Edson Tirelli > JBoss Drools Core Development > JBoss, a division of Red Hat @ www.jboss.com > > > _______________________________________________ > rules-users mailing list > [email protected] > https://lists.jboss.org/mailman/listinfo/rules-users > > -- Edson Tirelli JBoss Drools Core Development JBoss, a division of Red Hat @ www.jboss.com
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