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/*
* @test /nodynamiccopyright/
* @bug 8016177 8016178
* @summary structural most specific and stuckness
* @compile/fail/ref=T8016177b.out -XDrawDiagnostics T8016177b.java
*/
class T8016177b {
interface ToIntFunction<X> {
int m(X x);
}
interface Function<X, Y> {
Y m(X x);
}
<U, V> Function<U, V> id(Function<U, V> arg) { return null; }
<U, V> Function<U, V> id2(Function<U, V> arg) { return null; }
<U> ToIntFunction<U> id2(ToIntFunction<U> arg) { return null; }
<X,Y,Z> X f(Y arg, Function<Y, Z> f) { return null; }
<X,Y,Z> X f2(Y arg, Function<Y, Z> f) { return null; }
<X,Y> X f2(Y arg, ToIntFunction<Y> f) { return null; }
<T> T g(T arg) { return null; }
void test() {
g(f("hi", id(x->1))); //ok
g(f("hi", id2(x->1))); //ambiguous
g(f2("hi", id(x->1))); //ok
}
}
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