I am currently writing some software which uses ObjectInput/ObjectOutputStream to pass messages back and forth.
I have a class called Message, and a class called GameState, both are serializable
Inside Message, there is a GameState object, which holds the state of a current game.
I construct a GameState, then pass it into the constructor of Message, and set my pointer to point to that GameState.
I then try to send Message across an ObjectOutputStream to the client from the server.
Here is where a problem starts... I try to set up the stream in a thread on the client side with the following code:
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| public ClientThread(Socket conn, GameClient gcl) {
connection = conn;
gc = gcl;
try {
out = new ObjectOutputStream(connection.getOutputStream());
(36) in = new ObjectInputStream(connection.getInputStream());
} catch (Exception e) {
e.printStackTrace();
}
} |
Which produces the following error:
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| java.io.StreamCorruptedException: invalid stream header
at java.io.ObjectInputStream.readStreamHeader(Unknown Source)
at java.io.ObjectInputStream.<init>(Unknown Source)
at Client.ClientThread.<init>(ClientThread.java:36) |
My two questions are this:
1) Can you pass an object through an OOS which contains a reference to another object, and retrieve both on the other side, for example:
GameState g = new GameState(args);
Message m = new Message(g); // this will simply contain a link to g in a private variable
OOS.writeObject(m);
then on the client:
Message m1 = (Message)(OIS.readObject());
GameState g1 = m1.getGameState();
Or does that fail completely somehow?
2) What could be causing that error? I have never encountered it before and dont know where to turn at all...
