code: protected static NfsGetAttributes makeNfsGetAttributes(Xdr xdr, boolean force) {
          NfsGetAttributes attributes = null;
          if (force || xdr.getBoolean()) {
              attributes = new NfsGetAttributes();
              attributes.unmarshalling(xdr);
          }
          return attributes;
      }
docs: Create the object if it is there, or skip the existence check if
  <code>force</code> is <code>true</code>. Convenience method for use in
  subclasses.
  
  @param xdr
  @param force
  do not check whether it is there
  @return the created object