coverity#704606 Explicit null dereferenced
coverity#704606 Explicit null dereferenced

Change-Id: I984696874455225fc714d25a79e89eb4f879484e

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