A Demo of using the CustomPacket class to decode/encode MCPE packets.

CustomPacketDemo.java

/*
* Copyright (C) 2015 jython234
*/

CustomPacket cp = new CustomPacket();
cp.decode(rawBuffer); //The rawbuffer is the raw datagram packet's buffer you have recieved.
System.out.println(cp.sequenceNumber); //Access the sequence number to check if you missed any packets from the client
for(CustomPacket.InternalPacket ip : cp.packets){ // Loop thru all the decoded packets
  //Access messageIndex, buffer, etc
  System.out.println(Arrays.toString(ip.buffer)); //The decoded packet buffer (ClientConnect, Ping, etc)
}

CustomPacket.InternalPacket ip = new CustomPacket.InternalPacket();
ip.reliability = (byte) 2; //Default reliability is 2
ip.messageIndex = nextMessageIndex++;
ip.buffer = new byte[] {0x15} //CLIENT_DISCONNECT 

cp = new CustomPacket();
cp.packets.add(ip);
byte[] data = cp.encode();
//Now you can send you very own CustomPacket!