[rules-users] shadow proxy nullpointerexception

Hello, I got some problems with shadowproxy. I have a couple of instances of class "FirstObj". The objects contains some other objects like "innerObj" and have a method "computesomething", which returns boolean and use the "innerObj" to compute the result. I try to access this object with the following rule: rule "doIt" when $firstobj : FirstObj(computesomething == true) then // take a break... System.out.println("be happy"); I debug the programm and figure out that the innerObj is not null. Instead of my original object "firstobj", there I found a FirstObjShadowProxy which offers a field called "innerObj" which is null. Isnt it possible to get access to "computed" fields? What is wrong here? Thanks Thorsten