coverity#1219787 Explicit null dereferenced
coverity#1219787 Explicit null dereferenced

Change-Id: Idb13242d25583b1c323b5a20ecc10f10b8b82465

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