coverity#736847 Dereference before null check
coverity#736847 Dereference before null check

Change-Id: I83025065fd69a50ec06a9d1ed5fdd5ed0242bce0

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