coverity#1169838 Dereference null return value
coverity#1169838 Dereference null return value

Change-Id: I6e8f83569fdb1ee7d7f513e065e6233aecf140f4

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