UnbindIdempotent.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
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 * 2 along with this work; if not, write to the Free Software Foundation,
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/*
 * @test
 * @bug 4278121
 * @summary Ensure that calling unbind() on an unbound name returns
 *      successfully.
 * @library ../../../../../../java/rmi/testlibrary
 * @build TestLibrary
 * @run main UnbindIdempotent
 */

import java.rmi.registry.Registry;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NameNotFoundException;
import javax.naming.NamingException;

public class UnbindIdempotent {

    public static void main(String[] args) throws Exception {
        Registry registry = TestLibrary.createRegistryOnUnusedPort();
        int registryPort = TestLibrary.getRegistryPort(registry);
        InitialContext ictx = new InitialContext();
        Context rctx;

        try {
            rctx = (Context)ictx.lookup("rmi://localhost:" + Integer.toString(registryPort));
        } catch (NamingException e) {
            // Unable to set up for test.
            return;
        }

        // Attempt to unbind a name that is not already bound.
        try {
            rctx.unbind("_bogus_4278121_");
        } catch (NameNotFoundException e) {
            throw new Exception("Test failed:  unbind() call not idempotent");
        }
    }
}