coverity#1314998 Dereference null return value
coverity#1314998 Dereference null return value

Change-Id: I1f36c486b404d189f2f39a525ec3fd2e1710e7af

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