question: private DatagramPacket [ ] encodeMulticastRequest ( final MulticastRequest req ) throws IOException { final Discovery disco = getDiscovery ( multicastRequestConstraints . chooseProtocolVersion ( ) ) ; final List packets = new ArrayList ( ) ; EncodeIterator ei = disco . encodeMulticastRequest ( req , multicastRequestConstraints . getMulticastMaxPacketSize ( DEFAULT_MAX_PACKET_SIZE ) , multicastRequestConstraints . getUnfulfilledConstraints ( ) ) ; while ( ei . hasNext ( ) ) { try { packets . addAll ( Arrays . asList ( ei . next ( ) ) ) ; } catch ( Exception e ) { logger . log ( ( e instanceof UnsupportedConstraintException ) ? Levels . HANDLED : Level . INFO , "exception encoding multicast request" , e ) ; } } if ( packets . isEmpty ( ) ) { throw new DiscoveryProtocolException ( "no encoded requests" ) ; } return ( DatagramPacket [ ] ) packets . toArray ( new DatagramPacket [ packets . size ( ) ] ) ; }
target:  Encodes outgoing multicast requests based on protocol in use, applying configured security constraints (if any).