[jboss-jira] [JBoss JIRA] Created: (JBRULES-2316) StringIndexOutOfBoundsException when a fact is in default package

[Renaud Julienne (JIRA)]

StringIndexOutOfBoundsException when a fact is in default package
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                 Key: JBRULES-2316
                 URL: https://jira.jboss.org/jira/browse/JBRULES-2316
             Project: Drools
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: drools-core
    Affects Versions: 4.0.7
            Reporter: Renaud Julienne
            Assignee: Mark Proctor


Assuming you have a rule base for which you have defined shadow proxy excludes.
If you insert a fact which class is in default package, a StringIndexOutOfBoundsException is raised by RuleBaseConfiguration#isShadowed()

java.lang.StringIndexOutOfBoundsException: String index out of range: -1
	at java.lang.String.substring(String.java:1768)
	at org.drools.RuleBaseConfiguration.isShadowed(RuleBaseConfiguration.java:546)
	at org.drools.reteoo.Rete$ClassObjectTypeConf.defineShadowProxyData(Rete.java:486)
	at org.drools.reteoo.Rete$ClassObjectTypeConf.<init>(Rete.java:468)
	at org.drools.reteoo.Rete.assertObject(Rete.java:152)
	at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:192)
	at org.drools.reteoo.ReteooWorkingMemory.doInsert(ReteooWorkingMemory.java:71)
	at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:911)
	at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:883)
	at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:704)
             ..........

Problem comes from this line (RuleBaseConfiguration.java:546):
        String qualifiedNamespace = className.substring( 0,
                                                         className.lastIndexOf( '.' ) ).trim();     // => default package => no '.' => exception

This can typically happen when trying to insert JDKProxies into the working memory for test purpose (EasyMock use such proxies).

The issue only appears if you have defined shadow proxy excludes.

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