StreamCorruptedException when sending Serialized objects via Bluetooth

问题

I have a Serialized class that I need to send as an object via Bluetooth, and also implements Runnable. As such, I set a few variables first, then send it as an object to be executed by another Android device, which will then set its result into a variable, and send back the same object with the result in one of the variables. I have been using the following two methods to serialize my object and get a ByteArray before sending them through the OutputStream of my BluetoothSocket, and to deserialize that ByteArray to get back my object.

public static byte[] serializeObject(Object o) throws IOException { 
    ByteArrayOutputStream bos = new ByteArrayOutputStream(); 

    ObjectOutput out = new ObjectOutputStream(bos);
    out.writeObject(o);  
    out.flush();
    out.close();

    // Get the bytes of the serialized object 
    byte[] buf = bos.toByteArray(); 

    return buf; 
} 

public static Object deserializeObject(byte[] b) throws OptionalDataException, ClassNotFoundException, IOException { 
    ByteArrayInputStream bis = new ByteArrayInputStream(b);

    ObjectInputStream in = new ObjectInputStream(bis); 
    Object object = in.readObject(); 
    in.close(); 

    return object; 
}

I still got the same error from these two methods, so I tried to merge it with the methods I use to send my ByteArray via BluetoothSocket's OutputStream, as shown below.

public void sendObject(Object obj) throws IOException{
    ByteArrayOutputStream bos = new ByteArrayOutputStream() ; 
    ObjectOutputStream out = new ObjectOutputStream( bos );
    out.writeObject(obj); 
    out.flush();
    out.close();

    byte[] buf = bos.toByteArray();
    sendByteArray(buf);
}
public void sendByteArray(byte[] buffer, int offset, int count) throws IOException{
    bluetoothSocket.getOutputStream().write(buffer, offset, count);
}

public Object getObject() throws IOException, ClassNotFoundException{
    byte[] buffer = new byte[10240];
    Object obj = null;
    if(bluetoothSocket.getInputStream().available() > 0){
        bluetoothSocket.getInputStream().read(buffer);

        ByteArrayInputStream b = new ByteArrayInputStream(buffer);
        ObjectInputStream o = new ObjectInputStream(b);
        obj = o.readObject();
    }
    return obj;
}

In the end, I get the same error when deserializing the object at the receiving device, as shown below.

java.io.StreamCorruptedException
at java.io.ObjectInputStream.readStreamHeader (ObjectInputStream.java:2102)
at java.io.ObjectInputStream.<init>(ObjectInputStream.java:372)
and so on...

Can anybody please help? I'm desperate, this has been killing me for weeks, and I need this to work in a few days. :S