coverity#1209554 Explicit null dereferenced
coverity#1209554 Explicit null dereferenced

Change-Id: Iacf4373221b93a97e030b09501cc91589f2fdff7

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