coverity#440750 Dereference after null check
coverity#440750 Dereference after null check

Change-Id: I155e9fabaf26df71758c4b8da92664a35956accb

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