coverity#1266469 Dereference null return value
coverity#1266469 Dereference null return value

Change-Id: I87318ba286ad2d8ded5d3e467b7a1e371318bef8

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