How to make constructor templates for specific superclasses?
package lessur.engine.net.packets;

import java.io.IOException;

import lessur.engine.net.GamePacket;
import lessur.engine.net.LessurConnectedNode;

public class PacketTemplate extends GamePacket {

    public PacketTemplate(LessurConnectedNode c) {
        super(-1, c);
    }

    public PacketTemplate(){
        super(-1, null);
    }

    @Override
    public byte[] getData() throws IOException {
        return baos.toByteArray();
    }

}