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 /*

  * @test /nodynamiccopyright/

  * @bug 8016175

  * @summary Add bottom-up type-checking support for unambiguous method references

  * @compile/fail/ref=MethodReference70.out -XDrawDiagnostics MethodReference70.java

  */

 class MethodReference70 {

     interface F<X> {

         void m(X x);

     }

     interface G<X> {

         Integer m(X x);

     }

     void m1(Integer i) { }

     void m2(Integer i) { }

     void m2(String i) { }

     <Z> void g(F<Z> fz) { }

     <Z> void g(G<Z> gz) { }

     void test() {

          g(this::m1); //ok

          g(this::m2); //ambiguous (stuck!)

     }

 }