getFooList method not get created when using JDK 1.6

I have an element 'foo' which can occur multiple times. When I generate the class files using JDK 1.5, I get the method getFooList. When I generate the class files using JDK 1.6, the method getFooList does not exist. Is this expected behavoir? Why does the getFooList method not get created

implement Comparable

Is there a way to generate classes from an XSD that contain an implementation of the Comparable interface? I would like to sort ListMyType but need MyType to implement the Comparable interface. The problem is that MyType is auto-generated by XmlBeans. Thanks, Nathan