001/* 002 * Copyright 2002-2018 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.messaging.simp.annotation.support; 018 019import org.springframework.messaging.Message; 020import org.springframework.messaging.MessagingException; 021 022/** 023 * {@link MessagingException} thrown when a session is missing. 024 * 025 * @author Rossen Stoyanchev 026 * @since 4.0 027 */ 028@SuppressWarnings("serial") 029public class MissingSessionUserException extends MessagingException { 030 031 public MissingSessionUserException(Message<?> message) { 032 super(message, "No \"user\" header in message"); 033 } 034 035}