@SuppressWarnings("deprecation")
 private static ArrayList<String> getExistingTypes(COBIEType.Documents documents) {
   ArrayList<String> existingTypes = new ArrayList<String>();
   for (DocumentType document : documents.getDocumentArray()) {
     if (document.getSheetName().equalsIgnoreCase(COBieUtility.CobieSheetName.Type.name())
         && !COBieUtility.isNA(document.getName())) {
       existingTypes.add(document.getName());
     }
   }
   return existingTypes;
 }