/*

 * @test /nodynamiccopyright/

 *

 * @summary  add a warning to detect diamond sites

 * @author mcimadamore

 * @compile/ref=T6939780_7.out -Xlint:-options -source 7 T6939780.java -XDrawDiagnostics -XDfindDiamond

 * @compile/ref=T6939780_8.out T6939780.java -XDrawDiagnostics -XDfindDiamond

 *

 */

class T6939780 {

    static class Foo<X extends Number> {

        Foo() {}

        Foo(X x) {}

    }

    void testAssign() {

        Foo<Number> f1 = new Foo<Number>(1);

        Foo<?> f2 = new Foo<Number>();

        Foo<?> f3 = new Foo<Integer>();

        Foo<Number> f4 = new Foo<Number>(1) {};

        Foo<?> f5 = new Foo<Number>() {};

        Foo<?> f6 = new Foo<Integer>() {};

    }

    void testMethod() {

        gn(new Foo<Number>(1));

        gw(new Foo<Number>());

        gw(new Foo<Integer>());

        gn(new Foo<Number>(1) {});

        gw(new Foo<Number>() {});

        gw(new Foo<Integer>() {});

    }

    void gw(Foo<?> fw) { }

    void gn(Foo<Number> fn) { }

}