fixed a potential NPE
fixed a potential NPE

mtvweb/BootsFaces-OSP,mtvweb/BootsFaces-OSP,TheCoder4eu/BootsFaces-OSP,TheCoder4eu/BootsFaces-OSP,jepsar/BootsFaces-OSP,jepsar/BootsFaces-OSP,chongma/BootsFaces-OSP,chongma/BootsFaces-OSP