BetterSpinner is not recognized by Espresso for retrieving Data

[JairAviles]

Regarding the Espresso basics (go here) You could implement the following snippet in order to tap a string value on the spinner.

onData(allOf(is(instanceOf(String.class)), is("Americano"))).perform(click());

However, when validating the is() methods it is causing conflict and its throwing and exception during Compile time:

error: method is in class MyClass cannot be applied to given types;
        onData(allOf(is(instanceOf(String.class)), is(protocol))).perform(click());
                                                   ^
  required: Class<T>
  found: String
  reason: cannot infer type-variable(s) T
    (argument mismatch; String cannot be converted to Class<T>)
  where T is a type-variable:
    T extends MyClass declared in method <T>is(Class<T>)