coverity#1296210 Explicit null dereferenced
coverity#1296210 Explicit null dereferenced

Change-Id: Ia5aaa3deba695f9b9aec68477f8b34f1602a8045

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