coverity#1187685 Dereference null return value
coverity#1187685 Dereference null return value

Change-Id: I7f34eae7eedfa067f0f8a360aa6ae8dc5b0381bd

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