coverity#1255389 Dereference null return value
coverity#1255389 Dereference null return value

Change-Id: I3b2a4e69a1c86d9b9ce9f51d6f321bda9e18f8b5

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