8016177: structural most specific and stuckness
Reviewed-by: jjg, vromero
Contributed-by: maurizio.cimadamore@oracle.com
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/*
* @test
* @bug 8003280
* @summary Add lambda tests
* Structural most specific doesn't handle cases with wildcards in functional interfaces
* @compile/fail/ref=MostSpecific04.out -XDrawDiagnostics MostSpecific04.java
*/
public class MostSpecific04 {
interface DoubleMapper<T> {
double map(T t);
}
interface LongMapper<T> {
long map(T t);
}
static class MyList<E> {
void map(DoubleMapper<? super E> m) { }
void map(LongMapper<? super E> m) { }
}
public static void main(String[] args) {
MyList<String> ls = new MyList<String>();
ls.map(e->e.length()); //ambiguous - implicit
ls.map((String e)->e.length()); //ok
}
}