Generate a chunk from a command without providing to player?

Hi,

I am working on making a command to generate chunks, currently I use the following code (stripped for ease):

EntityPlayer player = (EntityPlayer) icommandsender;
World worldObj = player.worldObj;
ChunkProviderServer cps = (ChunkProviderServer) worldObj.getChunkProvider();
for (int i = 0; i < 100; ++i) {
    List<Chunk> chunks = new ArrayList<>();
    for (int j = 0; j < 100; ++j) {
        Chunk chunk = worldObj.getChunkProvider().provideChunk(i, j);
        chunks.add(chunk);
    }
    for (Chunk c : chunks) {
        cps.unloadChunksIfNotNearSpawn(c.xPosition, c.zPosition);
    }
    cps.unloadQueuedChunks();
}

When it's done executing, I get a bunch of:

2014-06-12 20:41:49 [WARNING] [Minecraft-Server] Memory connection overburdened; after processing 2500 packets, we still have 7809 to go!
2014-06-12 20:41:49 [WARNING] [Minecraft-Server] Memory connection overburdened; after processing 2500 packets, we still have 5308 to go!
2014-06-12 20:41:49 [WARNING] [Minecraft-Server] Memory connection overburdened; after processing 2500 packets, we still have 2808 to go!
2014-06-12 20:41:49 [WARNING] [Minecraft-Server] Memory connection overburdened; after processing 2500 packets, we still have 307 to go!

Which indicates that during the generation some information is being sent to the client, so my question is basically: How to get the server load a chunk without sending it to the player executing the command?

Edit:

Just fixed the issue by not allowing a player to send the command, as it's not meant to be used in that way anyway.