coverity#1242429 Explicit null dereferenced
coverity#1242429 Explicit null dereferenced

Change-Id: I30f65243995288008fbc41de76bd3f4e2d21b00e

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