[jdom-interest] communication between an application and an applet

[Yilin Liu]

Hello,
    I have a problem about sending an Element object between an application and an applet.
    My sample codes are below :
       Application:
           ObjectOutputStream out;
           
           out = new ObjectOutputStream(socket.getOutputStream());
           Element test = (new Element("Test")).setAttribute("message", "hello");
           out.write(test);
           out.flush();
           
        Applet :
           ObjectInputStream in;
           Element msg = (Element)in.readObject();
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        At this step, java console shows that an InvalidClassException about ArrayList is thrown.
     Is it a serialization problem between an application and an applet?
     Can I solve the problem if I did not install jdk1.2 plug-in and instead of putting all jdk1.2 classes in the applet directory?
    
    PS. the communication between applications work.

    thanks.


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