test/langtools/tools/javac/overload/T8176265.java

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/*
 * @test
 * @bug 8176265
 * @summary Method overload resolution on a covariant base type doesn't work in 9
 * @compile T8176265.java
 */

class T8176265<T> {
    static class Sup<E> { }
    static class Sub<E> extends Sup<E> { }

    void method(Sup<? super T> f) { }
    void method(Sub<? super T> f) { }


    static <Z> void m(T8176265<? extends Z> test, Sub<Z> sz) {
        test.method(sz);
    }
}