code: public boolean addArray(long... newValues) {
          if (end + newValues.length >= values.length) {
              values = Lng.grow(values, (values.length + newValues.length) * 2);
          }
  
          System.arraycopy(newValues, 0, values, end, newValues.length);
          end += newValues.length;
          return true;
      }
docs: Add a new array to the list.
  
  @param newValues new values
  @return was able to add.