[jboss-jira] [JBoss JIRA] (DROOLS-5100) KieBase build fails with forall patterns containing "not equal" constraints

[Matteo Casalino (Jira)]

Matteo Casalino created DROOLS-5100:
---------------------------------------

             Summary: KieBase build fails with forall patterns containing "not equal" constraints
                 Key: DROOLS-5100
                 URL: https://issues.redhat.com/browse/DROOLS-5100
             Project: Drools
          Issue Type: Bug
          Components: core engine
    Affects Versions: 7.33.0.Final
            Reporter: Matteo Casalino
            Assignee: Mario Fusco
         Attachments: forall-not-equal-constraint.tgz

as of Drools 7.33.0.Final, forall patterns with "not equal" (!=) constraints will break when building the KieBase.

For example the following DRL:

{noformat}
    rule "forall with not equal"
    when forall(String(this != "foo"))
    then
    end
{noformat}
    
generates the following error:

{noformat}
    java.lang.StringIndexOutOfBoundsException: String index out of range: -1
    
    	at java.lang.String.substring(String.java:1967)
    	at org.drools.core.rule.constraint.MvelConstraint.getLeftInExpression(MvelConstraint.java:608)
    	at org.drools.core.rule.constraint.MvelConstraint.hashCode(MvelConstraint.java:602)
    	at org.drools.core.reteoo.AlphaNode.calculateHashCode(AlphaNode.java:189)
    	at org.drools.core.reteoo.AlphaNode.<init>(AlphaNode.java:89)
    	at org.drools.core.reteoo.builder.PhreakNodeFactory.buildAlphaNode(PhreakNodeFactory.java:88)
    	at org.drools.core.reteoo.builder.PatternBuilder.buildAlphaNodeChain(PatternBuilder.java:360)
    	at org.drools.core.reteoo.builder.PatternBuilder.attachAlphaNodes(PatternBuilder.java:346)
    	at org.drools.core.reteoo.builder.PatternBuilder.attachPattern(PatternBuilder.java:136)
    	at org.drools.core.reteoo.builder.PatternBuilder.build(PatternBuilder.java:84)
    	at org.drools.core.reteoo.builder.GroupElementBuilder$NotBuilder.build(GroupElementBuilder.java:220)
    	at org.drools.core.reteoo.builder.GroupElementBuilder.build(GroupElementBuilder.java:68)
    	at org.drools.core.reteoo.builder.GroupElementBuilder$AndBuilder.build(GroupElementBuilder.java:108)
    	at org.drools.core.reteoo.builder.GroupElementBuilder.build(GroupElementBuilder.java:68)
    	at org.drools.core.reteoo.builder.ReteooRuleBuilder.addSubRule(ReteooRuleBuilder.java:167)
    	at org.drools.core.reteoo.builder.ReteooRuleBuilder.addRule(ReteooRuleBuilder.java:139)
    	at org.drools.core.reteoo.ReteooBuilder.addRule(ReteooBuilder.java:110)
    	at org.drools.core.impl.KnowledgeBaseImpl.internalAddRule(KnowledgeBaseImpl.java:1525)
    	at org.drools.core.impl.KnowledgeBaseImpl.internalAddPackages(KnowledgeBaseImpl.java:926)
    	at org.drools.core.impl.KnowledgeBaseImpl.lambda$addPackages$2(KnowledgeBaseImpl.java:728)
    	at org.drools.core.impl.KnowledgeBaseImpl.enqueueModification(KnowledgeBaseImpl.java:745)
    	at org.drools.core.impl.KnowledgeBaseImpl.addPackages(KnowledgeBaseImpl.java:728)
    	at org.drools.compiler.kie.builder.impl.AbstractKieModule.createKieBase(AbstractKieModule.java:226)
    	at org.drools.compiler.kie.builder.impl.KieContainerImpl.createKieBase(KieContainerImpl.java:407)
    	at org.drools.compiler.kie.builder.impl.KieContainerImpl.getKieBase(KieContainerImpl.java:375)
{noformat}

This is working fine when using Drools <= 7.32.0.Final.



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