| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Iterator; |
| import java.util.concurrent.Callable; |
| |
| class Test { |
| private static void <warning descr="Private method 'foo(java.lang.Runnable)' is never used">foo</warning>(Runnable runnable) { |
| System.out.println(runnable); |
| } |
| |
| private static void foo(Callable<Iterator<?>> callable) { |
| System.out.println(callable); |
| } |
| |
| public static void main(String[] args) { |
| final Collection<Void> collection = new ArrayList<>(); |
| final Iterable<Void> iterable = collection; |
| foo(iterable::iterator); |
| foo(collection::iterator); |
| } |
| } |