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

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