bug in fields inspection when creating Field Extractors for non-camelcase accessors

Consider a java bean or POJO with a public String FOO; and these accessors:

public String getFOO()

public void setFOO(String foo)

---------------------------------------
The
rule "relation existance"
when
r : MyBean ( FOO == "" )
then
System.out.println("Found " + r.getName() + ".");
end

...will cause:
org.drools.rule.InvalidRulePackage: Unable to create Field Extractor for 'FOO'

at org.drools.rule.Package.checkValidity(Unknown Source)
at org.drools.common.AbstractRuleBase.addPackage(Unknown Source)
...

Possible a quick fix only.
I've marked it BLOCKING, because it prevents me and possibly others of using Drools together with Jena, the Ontology API.

Best regards,
Andy