/*

 * Copyright 2009 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

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 */

/*

 * @test

 * @bug     6650759

 * @summary Inference of formal type parameter (unused in formal parameters) is not performed

 * @compile/fail/ref=T6650759m.out T6650759m.java -XDrawDiagnostics

 */

import java.util.*;

class T6650759m {

    <Z> List<? super Z> m(List<? extends List<? super Z>> ls) {

        return ls.get(0);

    }

    void test() {

        ArrayList<ArrayList<Integer>> lli = new ArrayList<ArrayList<Integer>>();

        ArrayList<Integer> li = new ArrayList<Integer>();

        li.add(2);

        lli.add(li);

        List<? super String> ls = m(lli); //here

        ls.add("crash");

        Integer i = li.get(1);

    }

}