coverity#705493 Dereference null return value
coverity#705493 Dereference null return value

Change-Id: I20133ad19197fdfe40bb449680ac274ca0fa056e

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