coverity#982751 Dereference null return value
coverity#982751 Dereference null return value

Change-Id: I070317e55cf3260d1d50def0894a507cd08cc43f

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