[KryoNet] Sending an int[][] over KryoNet

[marcuiulian13]

Good evening.
I am trying to send a int[][] from server to client using Kryonet. The size of array is 256x256, but is the same if i use an 1x1 array.
The problem is that if i try to send the "Level" object, the connection stops (after x seconds, the client is disconnected, but server still thinks that he is still connected). I have tried using a byte[][] and a byte[], but nothing changes. The array values are between 0 and 6.

This is my Object:

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public static class Packet0Level {    public int[][] map; }

[Danny02]

quite funny to use a serialization library to serialize a byte array into a byte array

[marcuiulian13]

Okay, now i'm trying to send to the client data about every tile, using a for. The error i get is:

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Exception in thread "pool-1-thread-1" java.lang.NullPointerException    at com.minier.network.NetworkListener.received(NetworkListener.java:27)    at com.esotericsoftware.kryonet.Listener$QueuedListener$3.run(Listener.java:102)    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)    at java.lang.Thread.run(Unknown Source)

And here is the code at line 27:

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public void received(Connection c, Object o) {       if(o instanceof Packet0LevelInfo) {          Packet0LevelInfo packet = (Packet0LevelInfo) o;          Launcher.level = new Level(packet.levelWidth, packet.levelHeight);       } else if(o instanceof Packet1LevelData) {          Packet1LevelData packet = (Packet1LevelData) o; /*LINE 27*/   Launcher.level.getMap()[packet.tileX][packet.tileY] = packet.tile; /*LINE 27*/       } else if(o instanceof Packet2LevelFinished) {          Launcher.levelLoaded = true;       }    }

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[Nate]

I don't see an int[][] in the code you posted.

[OttoMeier]

so any of Launcher.level.getMap() is null. Set a breakpoint at that line to figure out which one.

I dont know if kryo have default support for arrays at the worst you have to write a custom Serializer.
 http://code.google.com/p/kryo/#KryoSerializable
probably you just need something like this:

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... kryo.register(int[].class);

[marcuiulian13]

Already tried this...

[matheus23]

I dont know if kryo have default support for arrays at the worst you have to write a custom Serializer.

This should drive Nate insane... maybe not...

[OttoMeier]

why?

[matheus23]

quite funny to use a serialization library to serialize a byte array into a byte array

[marcuiulian13]

Ok. Thank you. I already solved the problem.
The problem was that the array was too big for client so i broke it into smaller chunks that are sent one after other.