/*
* @test /nodynamiccopyright/
* @bug 4018525 4059072 4277274 4785453
* @summary Test that recursive 'extends' and 'implements' clauses are detected
* and disallowed.
*
* @compile/fail/ref=CyclicInheritance.out -XDrawDiagnostics CyclicInheritance.java
*/
class C1 extends C1 {} // ERROR - Cyclic inheritance
class C11 extends C12 {} // ERROR - Cyclic inheritance
class C12 extends C11 {} // error in previous line could correctly be reported here as well
interface I1 extends I1 {} // ERROR - Cyclic inheritance
interface I11 extends I12 {} // ERROR - Cyclic inheritance
interface I12 extends I11 {} // error in previous line could correctly be reported here as well
//-----
class C211 implements C211.I { // ERROR - may change pending resoluation of 4087020
interface I {}; // error in previous line could correctly be reported here as well
}
class C212 extends C212.C { // ERROR - Cyclic inheritance, subclass cannot enclose superclass
static class C {}; // error in previous line could correctly be reported here as well
}
class C221 implements C221.I { // ERROR - Cannot access C21 (private)
private interface I {}; // error in previous line could correctly be reported here as well
}
class C222 extends C222.C { // ERROR - Cannot access C22 (private)
private static class C {}; // error in previous line could correctly be reported here as well
}
//-----
class C3 {
class A {
class B extends A {}
}
}
class C4 {
class A extends B {}
class B {
class C extends A {}
}
}