This directory contains test classes for derived datatypes 
with object serialization. In fhe following 
the number of nodes needed and some explanations 
are annotated:


class                  no. of nodes (min-max)           annotation
------------------------------------------------------------------
hvecO                       1-inf                       not impl.
lbub2O                      1-inf                       not impl.
lbubO                       1-inf                       not impl.
packO                       1-inf                       
