[jboss-jira] [JBoss JIRA] (JBRULES-3709) When use method of FACT match(Object... objs), throws java.lang.RuntimeException: cannot invoke method

[Yingzhi Wang (JIRA)]

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


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