coverity#704902 Dereference after null check
coverity#704902 Dereference after null check

Change-Id: Ib0c590f452b0fd2df042a200015c935b46070fde

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