[jboss-jira] [JBoss JIRA] (DROOLS-4447) ClassCastException in mvel when updating a List property with modify

ClassCastException in mvel when updating a List property with modify -------------------------------------------------------------------- Key: DROOLS-4447 URL: https://issues.jboss.org/browse/DROOLS-4447 Project: Drools Issue Type: Bug Components: core engine Affects Versions: 7.25.0.Final Reporter: Martin Weiler Assignee: Mario Fusco Priority: Critical Labels: support The following code in the RHS of a rule fails with mvel dialect: {noformat} + " modify($p) { addresses.add(address) }\n" + + " //$p.getAddresses().add(address); update($p);\n" + {noformat} Exception: {noformat} Exception executing consequence for rule "addAddress" in defaultpkg: java.lang.ClassCastException: org.mvel2.optimizers.impl.refl.nodes.GetterAccessor cannot be cast to org.mvel2.optimizers.impl.refl.nodes.MethodAccessor at org.drools.core.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:39) at org.drools.core.common.DefaultAgenda.handleException(DefaultAgenda.java:1242) at org.drools.core.phreak.RuleExecutor.innerFireActivation(RuleExecutor.java:439) at org.drools.core.phreak.RuleExecutor.fireActivation(RuleExecutor.java:380) at org.drools.core.phreak.RuleExecutor.fire(RuleExecutor.java:136) at org.drools.core.phreak.RuleExecutor.evaluateNetworkAndFire(RuleExecutor.java:89) at org.drools.core.concurrent.AbstractRuleEvaluator.internalEvaluateAndFire(AbstractRuleEvaluator.java:34) at org.drools.core.concurrent.SequentialRuleEvaluator.evaluateAndFire(SequentialRuleEvaluator.java:43) at org.drools.core.common.DefaultAgenda.fireLoop(DefaultAgenda.java:1062) at org.drools.core.common.DefaultAgenda.internalFireAllRules(DefaultAgenda.java:1009) at org.drools.core.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1001) at org.drools.core.impl.StatefulKnowledgeSessionImpl.internalFireAllRules(StatefulKnowledgeSessionImpl.java:1330) at org.drools.core.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:1321) at org.drools.core.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:1305) at org.drools.compiler.integrationtests.Misc2Test.testModifyAddToList(Misc2Test.java:9139) {noformat} Notes: * The same rule worked in Drools 6.5.x * The alternative syntax (commented out in the snippet above) works