coverity#704809 Explicit null dereferenced
coverity#704809 Explicit null dereferenced

Change-Id: I8febb74648b409e214e805084682d932424252b3

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