Java example source code file (T6650759c.java)

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Java - Java tags/keywords

collection, t6650759c, util

The T6650759c.java Java example source code

/*
 * Copyright (c) 2009, 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     6650759
 * @summary Inference of formal type parameter (unused in formal parameters) is not performed
 * @compile T6650759c.java
 */

import java.util.Collection;
import java.util.Collections;

public class T6650759c {

  static interface A {}

  static interface B<X extends A> {}

  static interface C<X extends A, Y extends B {}

  public static <T extends A, U extends B Collection> get(U u) {
    return null;
  }

  public <T extends A, U extends B Collection> test(U u) {
    return Collections.unmodifiableCollection(get(u));
  }
}