Method addAll

lib/java/util/Collections.java:2788–2795

@see java.util.Collection#addAll(Collection)

(Collection<? extends E> c1)

         * @see java.util.Collection#addAll(Collection)
         */
        @SuppressWarnings("unchecked")
        public boolean addAll(Collection<? extends E> c1) {
            Object[] array = c1.toArray();
            for (Object o : array) {
                checkType(o, type);
            }
            return c.addAll((List<E>) Arrays.asList(array));
        }

        /**
         * @see java.util.Collection#removeAll(Collection)