coverity#1209811 Dereference before null check
coverity#1209811 Dereference before null check

Change-Id: I7e3778e5203438bc5db942c813a03896d7df895b

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