coverity#1266460 Argument cannot be negative
coverity#1266460 Argument cannot be negative

and

coverity#1266463 Argument cannot be negative
coverity#1266466 Argument cannot be negative

Change-Id: I4e910fa189be3b6cb8e9a6163a0d24dfcc1ef7d8

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