Maurizio Cimadamore 9b7bc21bb0 6939780: add a warning to detect diamond sites
Added hidden compiler flag '-XDfindDiamond' to detect 'diamondifiable' sites

Reviewed-by: jjg
2010-11-02 12:01:35 +00:00

26 lines
604 B
Java

/*
* @test /nodynamiccopyright/
* @bug 6939780
*
* @summary add a warning to detect diamond sites
* @author mcimadamore
* @compile/ref=T6939780.out T6939780.java -XDrawDiagnostics -XDfindDiamond
*
*/
class T6939780 {
void test() {
class Foo<X extends Number> {
Foo() {}
Foo(X x) {}
}
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>() {};
}
}