Hi, I'm using JBoss Rules 4.0.7
and I having this error when executing some rules.

org.drools.RuntimeDroolsException: org.drools.RuntimeDroolsException: java.lang.IllegalStateException: Error in getting field access method.Unable to create Field Extractor for 'codigoPlan' of '[ClassObjectType class=com.sample.Afiliado]'

The Afiliado class has a getCodigoPlan() public getter to a codigoPlan field.
The rule is:

rule
when
    socio : Afiliado( $codigoPlan: codigoPlan != null );
then
    System.out.println( $codigoPlan );
end

I check the manuals and mail lists and everyone has issues with getters. That's no my case I think.

Any ideas of what's happen ?
Regards,
--
Hugo