code: @SuppressWarnings("rawtypes")
      public Collection getCMP20Collection(Collection keys)
                      throws FinderException,
                      RemoteException
      {
          return ivEntityHelper.getCMP20Collection(this, keys);
      }
docs: Return a remote collection instance that wraps the given collection
  of primary keys. <p>
  
  This helper method is used to construct the result collection
  for finder methods on homes that supports both container and bean
  managed entity beans.