coverity#1251172 Dereference null return value
coverity#1251172 Dereference null return value

Change-Id: Ic1f1c7f055f3fb21e7361a2e14f6eebe3dac4216

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