coverity#1265804 Dereference null return value
coverity#1265804 Dereference null return value

Change-Id: Ie5622275aa5534714001ad04cf0ae4af365b3a9c

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