coverity#1169836 Dereference null return value
coverity#1169836 Dereference null return value

Change-Id: I402ceff13b2f081734151b8597c0d79ecebd6f52

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