Fixed BUG-0054379: Handle NPE in InvoiceGeneratorFromGoodsShipment in getQtyToInvoice method
**add logs and handle NPE
BUILDS try
https://builds.openbravo.com/view/try/job/try-init/3152/
BUILDS pos2
https://builds.openbravo.com/job/try-pos2-init/4788
BUILDS try retail
Edited by Atul Gaware