How to use

writeStream

method

in

org.apache.wicket.protocol.http.BufferedWebResponse

@Override
public void write(byte[] array, int offset, int length)
{
  if (charSequenceBuilder != null)
  {
    throw new IllegalStateException(
      "Can't call write(byte[]) after write(CharSequence) has been called.");
  }
  if (dataStream == null)
  {
    ByteArrayOutputStream stream = new ByteArrayOutputStream();
    dataStream = stream;
    actions.add(ActionType.DATA.action(res -> writeStream(res, stream)));
  }
  dataStream.write(array, offset, length);
}