cid#736777 dereference before null check
cid#736777 dereference before null check

Change-Id: I40faf8a98d6e71361f952c61a8c8d6b5e25c41be

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