coverity#1169827 Explicit null dereferenced
coverity#1169827 Explicit null dereferenced

Change-Id: Iaca51f3795341c1c834772abba340501b3fc60a3

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