if( !typeObj.getJavaObjectType().isAssignableFrom(jo.getClass()) ) {
System.out.println("type error");
roundTripError = true;
}
String s = typeObj.serializeJavaObject( jo,
DummyContextProvider.theInstance );
if(s==null) {
System.out.println("serializeJavaObject failed");
roundTripError = true;
} else {