Quellcode-Bibliothek BadCovar.java Sprache: unbekannt

/*
* @test /nodynamiccopyright/
* @bug 5007379
* @summary Compiler allows inheritance of multiple methods with unrelated return types
* @author gafter
*
* @compile/fail/ref=BadCovar.out -XDrawDiagnostics  BadCovar.java
*/

package bad.covar;

import java.util.*;

interface A{
        List<? extends A> f();
}

interface B{
        List<? extends B> f();
}

abstract class C implements A, B {} // should give error

Messung V0.5 in Prozent

Quellcode-Bibliothek BadCovar.java Sprache: unbekannt

[0.19QuellennavigatorsProjekt 2026-04-26]