[jboss-jira] [JBoss JIRA] Created: (JBRULES-3041) NPE (fatal) when compiling DRL declare...extends generic type

[Wolfgang Laun (JIRA)]

NPE (fatal) when compiling DRL declare...extends generic type
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                 Key: JBRULES-3041
                 URL: https://issues.jboss.org/browse/JBRULES-3041
             Project: Drools
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: drools-compiler (expert)
    Affects Versions: 5.2.0.M2
            Reporter: Wolfgang Laun
            Assignee: Mark Proctor
             Fix For: 5.2.0.CR1


import java.util.Set;
declare Person extends Set
  name : String
end

Compiling crashes with 

Exception in thread "main" java.lang.NullPointerException
	at org.drools.compiler.PackageBuilder.mergeInheritedFields(PackageBuilder.java:1173)
	at org.drools.compiler.PackageBuilder.processTypeDeclarations(PackageBuilder.java:1267)
	at org.drools.compiler.PackageBuilder.mergePackage(PackageBuilder.java:932)
	at org.drools.compiler.PackageBuilder.newPackage(PackageBuilder.java:920)
	at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:631)
	at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:310)
	at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:486)
	at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:28)

This is related to 3040 but is NOT remedied by changing (restricting) the syntax.


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