1 /*
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23 
24 /*
25  * @test
26  * @bug 8016081 8016178
27  * @summary structural most specific and stuckness
28  * @compile T8016177d.java
29  */
30 import java.util.*;
31 
32 class T8016177d {
33 
34     interface UnaryOperator<X> {
m(X x)35       X m(X x);
36     }
37 
38     interface IntStream {
sorted()39        IntStream sorted();
distinct()40        IntStream distinct();
limit(int i)41        IntStream limit(int i);
42     }
43 
44     abstract class WrappingUnaryOperator<S> implements UnaryOperator<S>  { }
45 
wrap1(UnaryOperator<S1> uo)46     <S1> WrappingUnaryOperator<S1> wrap1(UnaryOperator<S1> uo) { return null; }
wrap2(UnaryOperator<S2> uo)47     <S2> WrappingUnaryOperator<S2> wrap2(UnaryOperator<S2> uo) { return null; }
wrap3(UnaryOperator<S3> uo)48     <S3> WrappingUnaryOperator<S3> wrap3(UnaryOperator<S3> uo) { return null; }
49 
perm(List<P> l)50     <P> List<List<P>> perm(List<P> l) { return null; }
51 
52     List<List<WrappingUnaryOperator<IntStream>>> intPermutationOfFunctions =
53                 perm(Arrays.asList(
54                         wrap1(s -> s.sorted()),
55                         wrap2(s -> s.distinct()),
56                         wrap3(s -> s.limit(5))
57                 ));
58 }
59