coverity#1158198 Dereference null return value
coverity#1158198 Dereference null return value

Change-Id: I72bb6d3c2a140653b35dc1bffe764114ca4f0578

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