coverity#1209588 Explicit null dereferenced
coverity#1209588 Explicit null dereferenced

Change-Id: I6abb408c91c9d6ea2d60c328be221c7608a7906c

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