Yingzhi Wang created JBRULES-3709: ------------------------------------- Summary: When use method of FACT match(Object... objs), throws java.lang.RuntimeException: cannot invoke method Key: JBRULES-3709 URL: https://issues.jboss.org/browse/JBRULES-3709 Project: JBRULES Issue Type: Bug Security Level: Public (Everyone can see) Components: drools-core Affects Versions: 5.5.0.Final, 5.4.0.Final Environment: OS: Windows xp IDE: Eclipse JRE: 1.6 Reporter: Yingzhi Wang Assignee: Mark Proctor Priority: Critical I writed a method of fact User "public boolean match(Boolean... bs)", and when I use it in drl like this "User(match(true, true))", it will thows exception: java.lang.RuntimeException: cannot invoke method: match. But if I change it to User(match(true)), it will be ok. And also, If I insert fact first, then add the rule, It will throws this exception, if I add the rule first, then insert fact, it will be ok. Is DRools not support method(Object... objs)? FACT: User package user; public class User { public boolean match(Boolean... bs) { return true; } public boolean matchList(Boolean b1, Boolean b2) { return true; } } DRL: user.drl package test import user.User rule "test" when // User(match(true)) // is ok User(match(true, true)) // is err // User(matchList(true, true)) // is ok then System.out.println("It's OK!"); end main: KnowledgeBase base = KnowledgeBaseFactory.newKnowledgeBase(); StatefulKnowledgeSession s = base.newStatefulKnowledgeSession(); // user insert here will be err User user = new User(); s.insert(user); // add rule KnowledgeBuilder builder = KnowledgeBuilderFactory.newKnowledgeBuilder(); builder.add(ResourceFactory.newClassPathResource("user.drl", Test.class), ResourceType.DRL); KnowledgeBuilderErrors errs = builder.getErrors(); if (!errs.isEmpty()) { for (KnowledgeBuilderError e: errs) { System.out.println(e.toString()); } } Collection<KnowledgePackage> col = builder.getKnowledgePackages(); base.addKnowledgePackages(col); // user insert here is ok // User user = new User(); // s.insert(user); // fire s.fireAllRules(); Exception: Exception in thread "main" java.lang.RuntimeException: cannot invoke method: match at org.mvel2.optimizers.impl.refl.nodes.MethodAccessor.getValue(MethodAccessor.java:63) at org.mvel2.ast.ASTNode.getReducedValueAccelerated(ASTNode.java:108) at org.mvel2.MVELRuntime.execute(MVELRuntime.java:85) at org.mvel2.compiler.CompiledExpression.getValue(CompiledExpression.java:123) at org.mvel2.MVEL.executeExpression(MVEL.java:930) at org.drools.rule.constraint.MvelConditionEvaluator.evaluate(MvelConditionEvaluator.java:70) at org.drools.rule.constraint.MvelConditionEvaluator.evaluate(MvelConditionEvaluator.java:49) at org.drools.rule.constraint.MvelConstraint.evaluate(MvelConstraint.java:167) at org.drools.rule.constraint.MvelConstraint.isAllowed(MvelConstraint.java:124) at org.drools.reteoo.AlphaNode$ObjectSinkUpdateAdapter.assertObject(AlphaNode.java:325) at org.drools.reteoo.ObjectTypeNode.updateSink(ObjectTypeNode.java:334) at org.drools.reteoo.AlphaNode.updateSink(AlphaNode.java:203) at org.drools.reteoo.LeftInputAdapterNode.attach(LeftInputAdapterNode.java:120) at org.drools.reteoo.builder.BuildUtils.attachNode(BuildUtils.java:145) at org.drools.reteoo.builder.GroupElementBuilder$AndBuilder.build(GroupElementBuilder.java:127) at org.drools.reteoo.builder.GroupElementBuilder.build(GroupElementBuilder.java:71) at org.drools.reteoo.builder.ReteooRuleBuilder.addSubRule(ReteooRuleBuilder.java:155) at org.drools.reteoo.builder.ReteooRuleBuilder.addRule(ReteooRuleBuilder.java:128) at org.drools.reteoo.ReteooBuilder.addRule(ReteooBuilder.java:116) at org.drools.reteoo.ReteooRuleBase.addRule(ReteooRuleBase.java:445) at org.drools.common.AbstractRuleBase.addRule(AbstractRuleBase.java:956) at org.drools.common.AbstractRuleBase.addPackages(AbstractRuleBase.java:627) at org.drools.reteoo.ReteooRuleBase.addPackages(ReteooRuleBase.java:472) at org.drools.impl.KnowledgeBaseImpl.addKnowledgePackages(KnowledgeBaseImpl.java:150) at user.Test.main(Test.java:36) Caused by: java.lang.ArrayIndexOutOfBoundsException: 2 at org.mvel2.optimizers.impl.refl.nodes.MethodAccessor.executeAll(MethodAccessor.java:149) at org.mvel2.optimizers.impl.refl.nodes.MethodAccessor.getValue(MethodAccessor.java:48) ... 24 more -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira