coverity#1315003 Dereference null return value
coverity#1315003 Dereference null return value

Change-Id: I85a85e10d727e53f93d0c41c1f9896b4319919af

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