connect java aaplication to radius server using freeradius

Hi, In our company it's forbidden to use products with GPL License. So I ca not use Jradius client to connect my client application to a radius server. Since that FreeRadius is distributed under BSD, it's allowed to me to use this library. My queqtion is can you help me on how can I connect and authenticate my java application to a radius server using FreeRadius client?? Thanks in advance