coverity#1266467 Dereference null return value
coverity#1266467 Dereference null return value

Change-Id: Ifc6aa75417e9b43afd103079a6cd986e79f0c069

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