coverity#705513 Dereference null return value
coverity#705513 Dereference null return value

Change-Id: I7fd1569fe5d5c4383f028915af95fec55b8f8121

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