code: private void writeHandlingTasks(final RegisteredSocket socket, final WriteOperation op) throws IOException {
          while (true) {
              try {
                  socket.tlsChannel.write(op.bufferSet.array, op.bufferSet.offset, op.bufferSet.length);
                  return;
              } catch (NeedsTaskException e) {
                  warnAboutNeedTask();
                  e.getTask().run();
              }
          }
      }
docs: Intended use of the channel group is with sockets that run tasks internally, but out of tolerance, run tasks in
  thread in case the socket does not.