Re: [rules-users] No ClassLoaders found for: String

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 <psentosa(a)yahoo.com&gt; > >> >> 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.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-tp21437370p2143... >> Sent from the drools - user mailing list archive at Nabble.com. >> >> _______________________________________________ >> rules-users mailing list >> rules-users(a)lists.jboss.org >> 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 > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > > -- View this message in context: http://www.nabble.com/No-ClassLoaders-found-for%3A-String-tp21437370p2143... 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