1/** 2 * @test /nodynamiccopyright/ 3 * @bug 7062745 7157798 4 * @summary Negative test of conflicting same-name methods inherited from multiple interfaces when parameter types not compatible 5 * @compile/fail/ref=Test4.out -Werror -Xlint:unchecked -XDrawDiagnostics Test4.java 6 */ 7 8import java.util.Set; 9import java.util.HashSet; 10 11interface A { void m(Set<Integer> s); } 12interface B { void m(Set<String> s); } 13interface C { void m(Set<?> s); } 14 15interface AB extends A, B {} //error 16 17interface AC extends A, C {} //error 18 19interface D<T> { void m(Set<T> s); } 20 21interface AD extends A, D<Integer> {} //OK 22 23interface AD2 extends A, D<Number> {} //error 24 25interface CD<T> extends C, D<T> {} //error 26 27interface E { <T> void m(Set<T> s); } 28 29interface DE<T> extends D<T>, E {} //error 30