[KryoNet] - Incorrect Number of Bytes

Networking & Multiplayer
#1

Hello Community!

I´m very new in things with Networking.
A few week ago i started to develop a mulitplayer Online Game.
I began this game as an Application but yesterday i changed it to an Applet.
Since the Change i become the following Error from KryoNet: (Sorry for my English…)

00:00  INFO: Connecting: /81.88.24.240:13030
00:00 ERROR: [kryonet] Error updating connection.
com.esotericsoftware.kryo.SerializationException: Incorrect number of bytes (1 remaining) used to deserialize object: com.esotericsoftware.kryonet.FrameworkMessage$RegisterTCP@d75415
	at com.esotericsoftware.kryonet.TcpConnection.readObject(TcpConnection.java:148)
	at com.esotericsoftware.kryonet.Client.update(Client.java:254)
	at com.esotericsoftware.kryonet.Client.run(Client.java:332)
	at java.lang.Thread.run(Unknown Source)
Exception in thread "Client" com.esotericsoftware.kryo.SerializationException: Incorrect number of bytes (1 remaining) used to deserialize object: com.esotericsoftware.kryonet.FrameworkMessage$RegisterTCP@d75415
	at com.esotericsoftware.kryonet.TcpConnection.readObject(TcpConnection.java:148)
	at com.esotericsoftware.kryonet.Client.update(Client.java:254)
	at com.esotericsoftware.kryonet.Client.run(Client.java:332)
	at java.lang.Thread.run(Unknown Source)
java.net.SocketTimeoutException: Connected, but timed out during TCP registration.
Note: Client#update must be called in a separate thread during connect.
	at com.esotericsoftware.kryonet.Client.connect(Client.java:178)
	at com.esotericsoftware.kryonet.Client.connect(Client.java:115)
	at de.liquidz.poke2d.state.LoadScreen.init(LoadScreen.java:41)
	at org.newdawn.slick.state.StateBasedGame.init(StateBasedGame.java:171)
	at org.newdawn.slick.AppletGameContainer$Container.initApplet(AppletGameContainer.java:272)
	at org.newdawn.slick.AppletGameContainer$ContainerPanel.initGL(AppletGameContainer.java:229)
	at org.newdawn.slick.AppletGameContainer$ContainerPanel.start(AppletGameContainer.java:216)
	at org.newdawn.slick.AppletGameContainer$1.run(AppletGameContainer.java:92)

You can try it yourself at http://forum.projects-dw.de/lala/game/ :slight_smile:

Pls help me ^^
Greetz Liquidz

#2

Somehow you are doing something wrong. :wink: The error means it received an object made up of X bytes. It deserialized these bytes and ended up with some bytes (1) left over. Do the KryoNet examples work for you? If so, compare and see what you are doing differently.

#3

Hello Nate!
I will test the Example tomorrow. :slight_smile:

But, what does the Error exactly means?

For me he says that any of the registered Classes are different.
But I have 100% the same registered Classes in Client and Server…

#4

I have tested it now with the standard code same Error…

Must the Applet be signed??
My Applet isn´t signed…^^

#5

Ran into this issue today.

Solution:
you must register the classes on the Client and Server IN EXACTLY the same order.