code: public static JSONArray merge(final JSONArray src,
                                    final UnmodifiableJSONArray dest) {
          return merge(src, copy(dest));
      }
docs: Merges values from {@code src} into a copy of {@code dest}.
  See {@link #merge(JSONArray, JSONArray)}.
  
  @param src  {@code JSONArray} to merge from
  @param dest {@code JSONArray} to merge to
  @return The modified {@code dest} array.