ClassCastException using accumulate max in executable model ----------------------------------------------------------- Key: DROOLS-4534 URL: https://issues.jboss.org/browse/DROOLS-4534 Project: Drools Issue Type: Bug Components: core engine, executable model Affects Versions: 7.26.0.Final Reporter: Martin Weiler Assignee: Luca Molteni Priority: Major A rule containing the following accumulate constraint: {noformat} $max1 : Number() from accumulate( StockTick($time : getTimeFieldAsDate()); max($time.getTime())) {noformat} is successfully compiled using the executable model, but fails at runtime: {noformat} java.lang.RuntimeException: java.lang.ClassCastException: java.util.Date cannot be cast to java.lang.Long at org.drools.core.rule.SingleAccumulate.accumulate(SingleAccumulate.java:105) at org.drools.core.phreak.PhreakAccumulateNode.addMatch(PhreakAccumulateNode.java:750) at org.drools.core.phreak.PhreakAccumulateNode.doLeftInserts(PhreakAccumulateNode.java:168) at org.drools.core.phreak.PhreakAccumulateNode.doNode(PhreakAccumulateNode.java:89) at org.drools.core.phreak.RuleNetworkEvaluator.switchOnDoBetaNode(RuleNetworkEvaluator.java:581) at org.drools.core.phreak.RuleNetworkEvaluator.evalBetaNode(RuleNetworkEvaluator.java:552) at org.drools.core.phreak.RuleNetworkEvaluator.evalNode(RuleNetworkEvaluator.java:379) at org.drools.core.phreak.RuleNetworkEvaluator.innerEval(RuleNetworkEvaluator.java:339) at org.drools.core.phreak.RuleNetworkEvaluator.outerEval(RuleNetworkEvaluator.java:175) at org.drools.core.phreak.RuleNetworkEvaluator.evaluateNetwork(RuleNetworkEvaluator.java:133) at org.drools.core.phreak.RuleExecutor.reEvaluateNetwork(RuleExecutor.java:213) at org.drools.core.phreak.RuleExecutor.evaluateNetworkAndFire(RuleExecutor.java:88) 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.modelcompiler.CompilerTest.testAccumulateWithMax(CompilerTest.java:2006) {noformat}