Deadlock on sending via url

Hello
I've got an applet which has a JTree. Each node is a panel which has some logic in it. One part of the logic is if one certain JCheckbox is changed on a certain position the tree is traversed an all child nodes or parents are changed accordingly.
The problem is each panel indirectly calls my send function which is:
private static Collection connect(String data)
            throws IOException, ClassNotFoundException {
        URL testServlet = null;
        testServlet = new URL(servletURL + data);
        if (MMSCMSTree.debug)
            System.out.println("Servlet URL: " + testServlet);
        URLConnection connection = null;
        connection = testServlet.openConnection();
        InputStream input = connection.getInputStream();
        ObjectInputStream objStream = new ObjectInputStream(input);
        Collection collection = (Collection) objStream.readObject();
        return collection;
    }Another problem is I do not know how to cope with this threading issue. The effect is that the applet commits suicide and hangs. If anyone could help me with this issue, it would be very nice.
Thank you.
Regards
Tarik

Hello
There was only a deadlock in my head. The problem was a infinite while condition on the server side.
Regards
Tarik

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Hi
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