coverity#704620 Explicit null dereferenced
coverity#704620 Explicit null dereferenced

and

coverity#704621 Explicit null dereferenced

Change-Id: I06e335da746b02b16f7e5bd947d6eeff0c81b815

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core