Close RMI connection safely [duplicate]

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• How to close rmi client safely? 2 answers

how can I close a RMI connection safely and accurately..

For example close the connection of the RMI below..

Thanks

   try {           
        Remote kay = Naming.lookup("rmi://localhost/hey");
        Hey u = (Hey) kay;  
        u.canSaw(que);              
        } catch(Exception e) {
            System.out.println("fail");
        }