13:45:04.576 [reactor-http-nio-3] ERROR o.s.w.s.a.HttpWebHandlerAdapter - [handleUnresolvedError,355] - [8ead6ec3-2] Error [java.lang.NullPointerException: Cannot invoke "java.time.LocalDateTime.format(java.time.format.DateTimeFormatter)" because "this.endTime" is null] for HTTP POST "/auth/login", but ServerHttpResponse already committed (200 OK)