coverity#1038300 Explicit null dereferenced
coverity#1038300 Explicit null dereferenced

Change-Id: Id16363ad334c9c5801851806984cb14a6244bf54

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