coverity#735943 Explicit null dereferenced
coverity#735943 Explicit null dereferenced

Change-Id: I268ec2db2e8ec4a40dd8537989d2afe767207d40

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