Java example source code file (T6294779c.java)

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t6294779c

The T6294779c.java Java example source code

/*
 * Copyright (c) 2008, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/*
 * @test
 * @bug     6294779
 * @summary Problem with interface inheritance and covariant return types
 * @author  Maurizio Cimadamore
 * @compile/fail T6294779c.java
 */

public class T6294779c<X> {

    interface A {}

    interface B {}

    interface C {}

    interface I1 {
        T6294779c<? extends A> get();
    }

    interface I2 {
        T6294779c<? extends B> get();
    }

    interface I3 {
        T6294779c<? extends C> get();
    }

    interface I4 extends I1, I2, I3 {}
}