coverity#1265803 Dereference null return value
coverity#1265803 Dereference null return value

Change-Id: I4e565d9b5a416e7f4f435c75a715dad09c4e7e26

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