in src/main/java/org/apache/sling/scripting/javascript/wrapper/ScriptableProperty.java [264:275]
public Object get(String name, Scriptable start) {
final Object fromSuperclass = super.get(name, start);
if(fromSuperclass != Scriptable.NOT_FOUND) {
return fromSuperclass;
}
if(property == null) {
return Undefined.instance;
}
return getNative(name, start);
}