/*

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

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 * 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).

 *

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 * 2 along with this work; if not, write to the Free Software Foundation,

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 */

/*

 * @test

 * @bug 4698375

 * @summary generics: subtyping problem when type parameters permuted

 * @author gafter

 *

 * @compile  PermuteBound.java

 */

package PermuteBound;

class C<X, Y> {}

class D<X, Y> extends C<X, Y>

{

    void f(C<X, Y> c)

    {

        D<X, Y> d = (D<X, Y>) c;// OK because D extends C

    }

    void g(C<Y, X> c)// parameters X and Y are now permuted

    {

        D<Y, X> d = (D<Y, X>) c;// should also be OK but is not !?

        //                    ^

        // inconvertible types

        // found :    C<Y,X>

        // required : D<Y,X>

    }

    /*

    void gWorkAround(C<Y, X> c)// but generates unchecked warning

    {

        D<Y, X> d = (D) ((C) c);

    }

    */

}