8145006: Collections.asLifoQueue(null) doesn't throw NPE as specified

Reviewed-by: smarks

jdk/src/java.base/share/classes/java/util/Collections.java

@@ -5530,7 +5530,7 @@ public class Collections {
      * @since  1.6
      */
     public static <T> Queue<T> asLifoQueue(Deque<T> deque) {
-        return new AsLIFOQueue<>(deque);
+        return new AsLIFOQueue<>(Objects.requireNonNull(deque));
     }
 
     /**

jdk/test/java/util/Collections/AsLifoQueue.java

@@ -70,6 +70,8 @@ public class AsLifoQueue {
             check(q.isEmpty());
             equal(q.size(), 0);
         } catch (Throwable t) { unexpected(t); }
+
+        THROWS(NullPointerException.class, () -> Collections.asLifoQueue(null));
     }
 
     //--------------------- Infrastructure ---------------------------