ObjectInputStream and GZIPInputStream working together - newbie

From: R (ruthless_at_poczta.onet.pl)
Date: 03/28/05

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    Date: 28 Mar 2005 05:22:47 -0800

    Hello everybody.

    I'm a newbie.

    I have my simple client/server application.
    I was using the ObjectInputStream/ObjectOutputStream for transmiting
    serialized data between computers.

    It was working and then I thought of compressing my data.

    So I did sth like this:

    // get stream from socket
    is = c.getInputStream();
    ObjectInputStream ois = null;
    try {
            // create new InputStream
            ois = new ObjectInputStream(new GZIPInputStream(is));
    } catch (IOException e) {
            e.printStackTrace();
    }
    // debug prints
    System.out.println("is is: " + is);
    System.out.println("ois is: " + ois);

    but it isn't working at all
    the results are:

    Server: 127.0.0.1, port: 1112
    Client: 127.0.0.1, port: 33091
    java.io.EOFException
            at java.util.zip.GZIPInputStream.readUByte(GZIPInputStream.java:200)
            at java.util.zip.GZIPInputStream.readUShort(GZIPInputStream.java:190)
            at java.util.zip.GZIPInputStream.readHeader(GZIPInputStream.java:130)
            at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:58)
            at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:68)
            at MultiClient.Start(MultiClient.java:133)
            at MultiClient.main(MultiClient.java:29)

    oos is: java.io.ObjectOutputStream@c9ba38
    os is: java.net.SocketOutputStream@12152e6

    is is: java.net.SocketInputStream@1d99a4d
    ois is: null

    where osi is ObjectInputStream = null

    I can see that the GZIPInputStream constructor calls various read
    methods.

    And this is crucial moment because SocketInputStream can (and in most
    cases is) empty at that moment.

    How can I combine those two streams to work together?

    thanks in advance for any help

    best regrads
    R

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