disconnecting from a socket in java

Question

Hi i am building a little p2p program, implementing both the server-side and the client-side. when I lunch the client-side program, first think it does is to connect to each server in its list, send data (about the client-side) and disconnect. The next time the client-side connects to one of these servers it will be recognized.

My problem - when i tell the client-side to disconnect, i get this exception

java.io.EOFException
at java.io.DataInputStream.readUnsignedShort(Unknown Source)
at java.io.DataInputStream.readUTF(Unknown Source)
at java.io.DataInputStream.readUTF(Unknown Source)
at oop.ex3.nameserver.NameServerThread.run(NameServerThread.java:24)

to disconnect i just wrote:

 finally {
        out.close();
        in.close();
        socket.close();
    }

so, how do i avoid this exception? thanks!

Answer 1

The JavaDoc for Socket.close() states clearly:

Closing this socket will also close the socket's InputStream and OutputStream.

which will throw the exception since you've already closed them!