interface MyFunctionalInterface {
    void invokeMethodReference(int a);
}

class MethodSupplier {
    void m(int a) { System.out.println(a); }
}

class MethodInvoker extends MethodSupplier {
    public void doInvoke() {
        MyFunctionalInterface instance = null;
        instance = super::<Integer>m;
        instance.invokeMethodReference(1);
    }
    public static void invoke() {
        new MethodInvoker().doInvoke();
    }
    public void doInvoke2() {
        m(1);
    }
    public static void invoke2() {
        new MethodInvoker().doInvoke2();
    }
}

public class Test2 {
    public static void main(String argv[]) throws Throwable {
      try {
        Class.forName("MethodInvoker").getMethod("invoke").invoke(null);
      } catch (Throwable x) {
        x.printStackTrace(System.err);
      }
      System.err.println();
      try {
        Class.forName("MethodInvoker").getMethod("invoke2").invoke(null);
      } catch (Throwable x) {
        x.printStackTrace(System.err);
      }
      System.err.println();
      try {
        MethodInvoker.invoke();
      } catch (Throwable x) {
        x.printStackTrace(System.err);
      }
      System.err.println();
      try {
        MethodInvoker.invoke2();
      } catch (Throwable x) {
        x.printStackTrace(System.err);
      }
   }
}