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class WildcardCharPrimitive {
static interface Predicate<T> {
boolean apply(T t);
}
abstract static class Matcher {
public abstract boolean matches(char character);
}
public static void forPredicate(final Predicate<? super Character> predicate) {
new Matcher() {
// this tests default type hierarchy visitPrimitive_Wildcard
public boolean matches(char c) {
// this will happen when a type system does not have an EXPLICIT_LOWER_BOUND
// that matches the default for char c
@SuppressWarnings("argument.type.incompatible")
boolean value = predicate.apply(c);
return value;
}
};
}
}
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