protected Handshaker(boolean isClient,DTLSSession session,RecordLayer recordLayer,SessionListener sessionListener,Certificate[] rootCertificates,int maxTransmissionUnit){
  this(isClient,0,session,recordLayer,sessionListener,rootCertificates,maxTransmissionUnit);
}

protected Handshaker ( boolean isClient , DTLSSession session , RecordLayer recordLayer , SessionListener sessionListener , Certificate [ ] rootCertificates , int maxTransmissionUnit ) { this ( isClient , 0 , session , recordLayer , sessionListener , rootCertificates , maxTransmissionUnit ) ; }
creates a new handshaker for negotiating a dtls session with a given peer .
