{
{    The purpose of this request is build an array of container pointers from a
{ valid non null message.
{
{       NLP$BM_BUILD_PVA_LIST (MESSAGE_ID, PVA_LIST)
{
{ MESSAGE_ID: (input)  This parameter specifies the message.
{
{ PVA_LIST: (output)  This parameter specifies the pva array.
{
