coverity#705018 Explicit null dereferenced
coverity#705018 Explicit null dereferenced

Change-Id: I13777df8fbe03aae8f55491fef144d48da3bb312

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