coverity#1242505 Dereference before null check
coverity#1242505 Dereference before null check

Change-Id: I63a5361eb338dba30d76f4a0a1afb88e7de5f401

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