private void writeError(HttpServletResponse response, String errorText, int status)
throws IOException {
JsonWriter writer = new JsonWriter();
if (errorText == null || errorText.isEmpty()) errorText = "Internal server error.";
writer.startResponse(null, false, status);
writer.writeInfo(Arrays.asList(Message.error(errorText)), null, null);
writer.startArray(Json.data);
writer.finishArray();
writer.finishResponse();
writeResponse(response, writer.toString().getBytes(encoding.Default.toString()));
}
