Re: [rules-users] NullPointerException with float field

I have rule that logical comparison with two Float fields(like price < bidPrice || price >= bidPrice ). I get following exception if one of field is null. Is this expected behaviour? Please clarify. Thanks

Caused by: java.lang.NullPointerException at org.drools.base.extractors.BaseObjectClassFieldExtractor.getFloatValue(BaseObjectClassFieldExtractor.java:84) at org.drools.base.ClassFieldExtractor.getFloatValue(ClassFieldExtractor.java:191) at org.drools.base.evaluators.FloatFactory$FloatLessEvaluator.evaluate(FloatFactory.java:250) at org.drools.rule.VariableRestriction.isAllowed(VariableRestriction.java:73) at org.drools.rule.VariableConstraint.isAllowed(VariableConstraint.java:67) at org.drools.rule.AndConstraint.isAllowed(AndConstraint.java:47) at org.drools.rule.OrConstraint.isAllowed(OrConstraint.java:50) at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:137) at org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:22) at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:145) at org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:318) at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:145) at org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:22) at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:145) at org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:318) at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:162) at org.drools.reteoo.Rete.assertObject(Rete.java:175) at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:192) at org.drools.reteoo.ReteooWorkingMemory.doInsert(ReteooWorkingMemory.java:71) at org.drools.common.AbstractWorkingMemory.update(AbstractWorkingMemory.java:1287) at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:103)