ClassCastException when kcontainer.updateToVersion() with sliding window rule running (with fix for DROOLS-881 and DROOLS-883) ------------------------------------------------------------------------------------------------------------------------------ Key: DROOLS-886 URL: https://issues.jboss.org/browse/DROOLS-886 Project: Drools Issue Type: Bug Components: core engine Affects Versions: 6.3.0.CR1 Environment: drools.version: 6.4.0-SNAPSHOT Reporter: hisao furuichi Assignee: Mario Fusco Fix For: 6.3.0.CR2 Attachments: reproducer2.zip When you call kcontainer.updateToVersion() while running sliding window rules, you will the following Exception. I tested it with master(6.4.0-SNAPSHOT), and I guess it includes the fix for DROOLS-881 and DROOLS-883. However the issue still occurs. {panel} Exception in thread "pool-23-thread-1" java.lang.ClassCastException: org.drools.core.reteoo.WindowNode$WindowMemory cannot be cast to org.drools.core.reteoo.PathMemory at org.drools.core.phreak.AddRemoveRule.addRule(AddRemoveRule.java:85) at org.drools.core.reteoo.builder.ReteooRuleBuilder.addSubRule(ReteooRuleBuilder.java:190) at org.drools.core.reteoo.builder.ReteooRuleBuilder.addRule(ReteooRuleBuilder.java:136) at org.drools.core.reteoo.ReteooBuilder.addRule(ReteooBuilder.java:102) at org.drools.core.impl.KnowledgeBaseImpl.addRule(KnowledgeBaseImpl.java:1521) at org.drools.core.impl.KnowledgeBaseImpl.addRule(KnowledgeBaseImpl.java:1501) at org.drools.compiler.builder.impl.KnowledgeBuilderImpl.compileAllRules(KnowledgeBuilderImpl.java:966) at org.drools.compiler.builder.impl.CompositeKnowledgeBuilderImpl.buildRules(CompositeKnowledgeBuilderImpl.java:256) at org.drools.compiler.builder.impl.CompositeKnowledgeBuilderImpl.buildPackages(CompositeKnowledgeBuilderImpl.java:120) at org.drools.compiler.builder.impl.CompositeKnowledgeBuilderImpl.build(CompositeKnowledgeBuilderImpl.java:104) at org.drools.compiler.kie.builder.impl.KieContainerImpl.rebuildAll(KieContainerImpl.java:369) at org.drools.compiler.kie.builder.impl.KieContainerImpl.update(KieContainerImpl.java:207) at org.drools.compiler.kie.builder.impl.KieContainerImpl.updateToVersion(KieContainerImpl.java:128) at com.sample.CallKjarTest$1.run(CallKjarTest.java:45) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) {panel}