void saveExceededSizeError(HttpRequest nettyRequest, Request request, Response response) { String warning = nettyRequest.getHeader(HttpHeaders.Names.WARNING); String length = nettyRequest.getHeader(HttpHeaders.Names.CONTENT_LENGTH); if (warning != null) { Logger.trace("saveExceededSizeError: begin"); try { StringBuilder error = new StringBuilder(); error.append("\u0000"); // Cannot put warning which is play.netty.content.length.exceeded // as Key as it will result error when printing error error.append("play.netty.maxContentLength"); error.append(":"); String size = null; try { size = JavaExtensions.formatSize(Long.parseLong(length)); } catch (Exception e) { size = length + " bytes"; } error.append(Messages.get(warning, size)); error.append("\u0001"); error.append(size); error.append("\u0000"); if (request.cookies.get(Scope.COOKIE_PREFIX + "_ERRORS") != null && request.cookies.get(Scope.COOKIE_PREFIX + "_ERRORS").value != null) { error.append(request.cookies.get(Scope.COOKIE_PREFIX + "_ERRORS").value); } String errorData = URLEncoder.encode(error.toString(), "utf-8"); Http.Cookie c = new Http.Cookie(); c.value = errorData; c.name = Scope.COOKIE_PREFIX + "_ERRORS"; request.cookies.put(Scope.COOKIE_PREFIX + "_ERRORS", c); Logger.trace("saveExceededSizeError: end"); } catch (Exception e) { throw new UnexpectedException("Error serialization problem", e); } } }