For the benefit of anyone developing the TCK and thinking about using the latest API20 (with yesterdays changes) when running with JPOX : It won't work with current latest build of JPOX (so stick to your existing jdo2-api-2.0-SNAPSHOT.jar)
JPOX CVS has now been updated and the next nightly build (jpox-SNAPSHOT.jar, jpox-enhancer-SNAPSHOT.jar), dated 10/08/2005, will support the latest API20 changes. -- Andy Java Persistent Objects - JPOX