Hi All, I am using Drools 4.0.7 and when I tried to use “matches” operator it is giving following exception The rule logic is following package com.logica.heca.lpr.rule; import com.logica.heca.lpr.domain.*; import com.logica.heca.lpr.domain.contact.*; import com.logica.heca.lpr.domain.ruleengine.*; import java.util.*; rule "CPR_RULE_222222" dialect "mvel" when INDUD : ContactVO(); eval(INDUD.districtCode matches "((UX)[ACMR][[A-Z0-9]]{3})|([A-Z0-9]++)") then System.out.println("hello"); End Note: INDUD.districtCode returns String value. While if I changed matches operator to java method this work fine eval(INDUD.getDistrictCode().matches("((UX)[ACMR][[A-Z0-9]]{3})|([A-Z0-9]++)")); any of your esteemed help will highly be appreciated Thanks Ravendra Kumar ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- org.drools.RuntimeDroolsException: org.drools.base.mvel.MVELEvalExpression@1cf7491 : java.lang.ClassCastException: java.lang.String cannot be cast to java.lang.Boolean at org.drools.rule.EvalCondition.isAllowed(EvalCondition.java:82) at org.drools.reteoo.EvalConditionNode.assertTuple(EvalConditionNode.java:148) at org.drools.reteoo.SingleTupleSinkAdapter.createAndPropagateAssertTuple(SingleTupleSinkAdapter.java:55) at org.drools.reteoo.LeftInputAdapterNode.assertObject(LeftInputAdapterNode.java:116) at org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:22) at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:162) at org.drools.reteoo.Rete.assertObject(Rete.java:175) at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:192) at org.drools.reteoo.ReteooWorkingMemory.doInsert(ReteooWorkingMemory.java:71) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:911) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:883) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:684) at org.drools.reteoo.ReteooStatelessSession.execute(ReteooStatelessSession.java:143) at com.logica.heca.lpr.rule.RuleTester.main(RuleTester.java:44) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.intellij.rt.execution.application.AppMain.main(AppMain.java:90) Caused by: java.lang.ClassCastException: java.lang.String cannot be cast to java.lang.Boolean at org.drools.base.mvel.MVELEvalExpression.evaluate(MVELEvalExpression.java:42) at org.drools.rule.EvalCondition.isAllowed(EvalCondition.java:77) ... 18 more ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Thanks and Regards, Ravendra kumar IT Consultant __________________________________ Logica- Releasing your potential Margrethepladsen 4, 8000 Århus C Danmark T: +45 2518 8864 E-mail: ravendra.kumar(a)logica.com www.logica.dk Please help Logica to respect the environment by not printing this email / Pour contribuer comme Logica au respect de l'environnement, merci de ne pas imprimer ce mail / Bitte drucken Sie diese Nachricht nicht aus und helfen Sie so Logica dabei die Umwelt zu schuetzen / Por favor ajude a Logica a respeitar o ambiente não imprimindo este correio electrónico. This e-mail and any attachment is for authorised use by the intended recipient(s) only. It may contain proprietary material, confidential information and/or be subject to legal privilege. It should not be copied, disclosed to, retained or used by, any other party. If you are not an intended recipient then please promptly delete this e-mail and any attachment and all copies and inform the sender. Thank you. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users