coverity#1130425 Dereference null return value
coverity#1130425 Dereference null return value

Change-Id: I84cb15bdfe5836bbaa5c4a24572987d6ab51cdd0

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