src/java.base/share/classes/java/util/concurrent/LinkedBlockingDeque.java

*** 835,844 ****
--- 835,845 ----
       * @throws NullPointerException if the specified collection or any
       *         of its elements are null
       * @throws IllegalArgumentException if the collection is this deque
       * @throws IllegalStateException if this deque is full
       * @see #add(Object)
+      * @since 9
       */
      public boolean addAll(Collection<? extends E> c) {
          if (c == this)
              // As historically specified in AbstractQueue#addAll
              throw new IllegalArgumentException();
*** 1283,1292 ****
--- 1284,1294 ----
          return new LBDSpliterator();
      }
  
      /**
       * @throws NullPointerException {@inheritDoc}
+      * @since 9
       */
      public void forEach(Consumer<? super E> action) {
          Objects.requireNonNull(action);
          forEachFrom(action, null);
      }
*** 1325,1350 ****
--- 1327,1355 ----
          } while (n > 0 && p != null);
      }
  
      /**
       * @throws NullPointerException {@inheritDoc}
+      * @since 9
       */
      public boolean removeIf(Predicate<? super E> filter) {
          Objects.requireNonNull(filter);
          return bulkRemove(filter);
      }
  
      /**
       * @throws NullPointerException {@inheritDoc}
+      * @since 9
       */
      public boolean removeAll(Collection<?> c) {
          Objects.requireNonNull(c);
          return bulkRemove(e -> c.contains(e));
      }
  
      /**
       * @throws NullPointerException {@inheritDoc}
+      * @since 9
       */
      public boolean retainAll(Collection<?> c) {
          Objects.requireNonNull(c);
          return bulkRemove(e -> !c.contains(e));
      }