langtools/test/tools/javac/BadCovar.java
author ssides
Wed, 09 Jul 2014 15:14:06 +0400
changeset 25760 7955db32d6b0
parent 5520 86e4b9a9da40
child 26274 02a5b23ee21c
permissions -rw-r--r--
8046597: fix doclint issues in swing classes, part 4 of 4 Reviewed-by: pchelko

/*
 * Copyright (c) 2004, 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
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 * questions.
 */

/*
 * @test
 * @bug 5007379
 * @summary Compiler allows inheritance of multiple methods with unrelated return types
 * @author gafter
 *
 * @compile/fail BadCovar.java
 */

package bad.covar;

import java.util.*;

interface A{
        List<? extends A> f();
}

interface B{
        List<? extends B> f();
}

abstract class C implements A, B {} // should give error