Issue457.java

// See gist: https://gist.github.com/JonathanBurke/6c1c1c28161a451611ad
// for more information on what was going wrong here
class Issue457<T extends Number> {

    @SuppressWarnings("unused")
    public void f(T t) {
        final T obj = t;

        Float objFloat = (obj instanceof Float) ? (Float) obj : null;

        // An error will be emitted on this line before the fix for Issue457
        t = obj;
    }
}