test/langtools/tools/javac/generics/6729401/T6729401.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * 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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/*
 * @test
 * @bug 6729401
 *
 * @summary  Compiler error when using F-bounded generics with free type variables
 * @author Maurizio Cimadamore
 * @compile T6729401.java
 *
 */

class T6729401 {

    interface I<U,W> {
        <T extends I<U,T>> void m(I<U,T> x);
    }

    <X extends I<Object,X>,Y extends I<Object,Y>> void test(I<Object,X> x, I<Object,Y> y) {
        x.<Y>m(y);
        x.m(y);
        y.<X>m(x);
        y.m(x);
    }
}