coverity#736152 Dereference null return value
coverity#736152 Dereference null return value

Change-Id: I5582d0481c0b99f92e7a3a07fbe7a904a1696442

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