1 /*
2  * @test /nodynamiccopyright/
3  * @bug 6939620 7020044 8062373
4  *
5  * @summary  Check that usage of rare types doesn't cause spurious diamond diagnostics
6  * @author mcimadamore
7  * @compile/fail/ref=Neg05.out Neg05.java -XDrawDiagnostics
8  *
9  */
10 
11 class Neg05<U> {
12 
13     class Foo<V> {
Foo(V x)14         Foo(V x) {}
Foo(V x, Z z)15         <Z> Foo(V x, Z z) {}
16     }
17 
testRare_1()18     void testRare_1() {
19         Neg05<?>.Foo<String> f1 = new Neg05.Foo<>("");
20         Neg05<?>.Foo<? extends String> f2 = new Neg05.Foo<>("");
21         Neg05<?>.Foo<?> f3 = new Neg05.Foo<>("");
22         Neg05<?>.Foo<? super String> f4 = new Neg05.Foo<>("");
23 
24         Neg05<?>.Foo<String> f5 = new Neg05.Foo<>("", "");
25         Neg05<?>.Foo<? extends String> f6 = new Neg05.Foo<>("", "");
26         Neg05<?>.Foo<?> f7 = new Neg05.Foo<>("", "");
27         Neg05<?>.Foo<? super String> f8 = new Neg05.Foo<>("", "");
28 
29         Neg05<?>.Foo<String> f9 = new Neg05.Foo<>(""){};
30         Neg05<?>.Foo<? extends String> f10 = new Neg05.Foo<>(""){};
31         Neg05<?>.Foo<?> f11 = new Neg05.Foo<>(""){};
32         Neg05<?>.Foo<? super String> f12 = new Neg05.Foo<>(""){};
33 
34         Neg05<?>.Foo<String> f13 = new Neg05.Foo<>("", ""){};
35         Neg05<?>.Foo<? extends String> f14 = new Neg05.Foo<>("", ""){};
36         Neg05<?>.Foo<?> f15 = new Neg05.Foo<>("", ""){};
37         Neg05<?>.Foo<? super String> f16 = new Neg05.Foo<>("", ""){};
38     }
39 
testRare_2(Neg05 n)40     void testRare_2(Neg05 n) {
41         Neg05<?>.Foo<String> f1 = n.new Foo<>("");
42         Neg05<?>.Foo<? extends String> f2 = n.new Foo<>("");
43         Neg05<?>.Foo<?> f3 = n.new Foo<>("");
44         Neg05<?>.Foo<? super String> f4 = n.new Foo<>("");
45 
46         Neg05<?>.Foo<String> f5 = n.new Foo<>("", "");
47         Neg05<?>.Foo<? extends String> f6 = n.new Foo<>("", "");
48         Neg05<?>.Foo<?> f7 = n.new Foo<>("", "");
49         Neg05<?>.Foo<? super String> f8 = n.new Foo<>("", "");
50 
51         Neg05<?>.Foo<String> f9 = n.new Foo<>(""){};
52         Neg05<?>.Foo<? extends String> f10 = n.new Foo<>(""){};
53         Neg05<?>.Foo<?> f11 = n.new Foo<>(""){};
54         Neg05<?>.Foo<? super String> f12 = n.new Foo<>(""){};
55 
56         Neg05<?>.Foo<String> f13 = n.new Foo<>("", ""){};
57         Neg05<?>.Foo<? extends String> f14 = n.new Foo<>("", ""){};
58         Neg05<?>.Foo<?> f15 = n.new Foo<>("", ""){};
59         Neg05<?>.Foo<? super String> f16 = n.new Foo<>("", ""){};
60     }
61 }
62