coverity#1130427 Dereference null return value
coverity#1130427 Dereference null return value

Change-Id: Iefc35c0de5224d66f362b6ba958fbffcf0c654bb

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