001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019package org.apache.shiro.authc;
020
021/**
022 * Thrown when attempting to authenticate with a principal that doesn't exist in the system (e.g.
023 * by specifying a username that doesn't relate to a user account).
024 *
025 * <p>Whether or not an application wishes to alert a user logging in to the system of this fact is
026 * at the discretion of those responsible for designing the view and what happens when this
027 * exception occurs.
028 *
029 * @since 0.1
030 */
031public class UnknownAccountException extends AccountException {
032
033    /**
034     * Creates a new UnknownAccountException.
035     */
036    public UnknownAccountException() {
037        super();
038    }
039
040    /**
041     * Constructs a new UnknownAccountException.
042     *
043     * @param message the reason for the exception
044     */
045    public UnknownAccountException(String message) {
046        super(message);
047    }
048
049    /**
050     * Constructs a new UnknownAccountException.
051     *
052     * @param cause the underlying Throwable that caused this exception to be thrown.
053     */
054    public UnknownAccountException(Throwable cause) {
055        super(cause);
056    }
057
058    /**
059     * Constructs a new UnknownAccountException.
060     *
061     * @param message the reason for the exception
062     * @param cause   the underlying Throwable that caused this exception to be thrown.
063     */
064    public UnknownAccountException(String message, Throwable cause) {
065        super(message, cause);
066    }
067}