Re: [rules-users] NPE with enum?

I have an enumeration called AccessType: public enum AccessType { READ, UPDATE, DELETE } In a rule, I have: $rt: ResourceType( ) and $perm: ResourceTypePermission( accessType != AccessType.READ ) from $rt.permissions and com.christws.entities.Role($rolename: name) from $perm.role and Role(name == $rolename) I am getting the following exception: java.lang.NullPointerException at org.drools.base.com.christws.entities.ResourceTypePermission7859095$getAccessType.getValue(Unknown Source) at org.drools.base.ClassFieldExtractor.getValue(ClassFieldExtractor.java:127) at org.drools.base.evaluators.ObjectFactory$ObjectNotEqualEvaluator.evaluate(ObjectFactory.java:175) at org.drools.rule.LiteralRestriction.isAllowed(LiteralRestriction.java:61) at org.drools.rule.LiteralConstraint.isAllowed(LiteralConstraint.java:82) at org.drools.reteoo.FromNode.assertTuple(FromNode.java:73) at org.drools.reteoo.SingleTupleSinkAdapter.propagateAssertTuple(SingleTupleSinkAdapter.java:20) at org.drools.reteoo.JoinNode.assertObject(JoinNode.java:149) at org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:22) at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:153) at org.drools.reteoo.Rete.assertObject(Rete.java:177) 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:886) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:858) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:659) at org.jboss.seam.security.RuleBasedIdentity.hasPermission(RuleBasedIdentity.java:143) at org.jboss.seam.security.Identity.checkPermission(Identity.java:474) The accessType is not null (checked with the debugger). Do you know why I would be getting this? If it matters, the getAccessType method and the accessType field are defined in an abstract super class of ResourceTypePermission (ResourceTypePermission extends RolePermission extends Permission which has the field) drools version 4.0.3 -Andrew _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users