code: private void writeIntArrayTagPayload(IntArrayTag tag) throws IOException {
          int[] ints = tag.getValue();
          os.writeInt(ints.length);
          for (int i = 0; i < ints.length; i++) {
              os.writeInt(ints[i]);
          }
      }
docs: Writes a {@code TAG_Int_Array} tag.
  
  @param tag The tag.
  @throws java.io.IOException if an I/O error occurs.