Mon, 03 Oct 2016 11:21:14 -0700
Added tag jdk8u122-b02 for changeset 2baeb96fa198
1 /*
2 * @test /nodynamiccopyright/
3 * @bug 4018525 4059072 4277274 4785453
4 * @summary Test that recursive 'extends' and 'implements' clauses are detected
5 * and disallowed.
6 *
7 * @compile/fail/ref=CyclicInheritance.out -XDrawDiagnostics CyclicInheritance.java
8 */
15 class C1 extends C1 {} // ERROR - Cyclic inheritance
17 class C11 extends C12 {} // ERROR - Cyclic inheritance
18 class C12 extends C11 {} // error in previous line could correctly be reported here as well
20 interface I1 extends I1 {} // ERROR - Cyclic inheritance
22 interface I11 extends I12 {} // ERROR - Cyclic inheritance
23 interface I12 extends I11 {} // error in previous line could correctly be reported here as well
25 //-----
27 class C211 implements C211.I { // ERROR - may change pending resoluation of 4087020
28 interface I {}; // error in previous line could correctly be reported here as well
29 }
31 class C212 extends C212.C { // ERROR - Cyclic inheritance, subclass cannot enclose superclass
32 static class C {}; // error in previous line could correctly be reported here as well
33 }
36 class C221 implements C221.I { // ERROR - Cannot access C21 (private)
37 private interface I {}; // error in previous line could correctly be reported here as well
38 }
40 class C222 extends C222.C { // ERROR - Cannot access C22 (private)
41 private static class C {}; // error in previous line could correctly be reported here as well
42 }
44 //-----
46 class C3 {
47 class A {
48 class B extends A {}
49 }
50 }
52 class C4 {
53 class A extends B {}
54 class B {
55 class C extends A {}
56 }
57 }