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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *     http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.shiro.authc;
20  
21  /**
22   * Thrown when attempting to authenticate with a principal that doesn't exist in the system (e.g.
23   * by specifying a username that doesn't relate to a user account).
24   *
25   * <p>Whether or not an application wishes to alert a user logging in to the system of this fact is
26   * at the discretion of those responsible for designing the view and what happens when this
27   * exception occurs.
28   *
29   * @since 0.1
30   */
31  public class UnknownAccountException extends AccountException {
32  
33      /**
34       * Creates a new UnknownAccountException.
35       */
36      public UnknownAccountException() {
37          super();
38      }
39  
40      /**
41       * Constructs a new UnknownAccountException.
42       *
43       * @param message the reason for the exception
44       */
45      public UnknownAccountException(String message) {
46          super(message);
47      }
48  
49      /**
50       * Constructs a new UnknownAccountException.
51       *
52       * @param cause the underlying Throwable that caused this exception to be thrown.
53       */
54      public UnknownAccountException(Throwable cause) {
55          super(cause);
56      }
57  
58      /**
59       * Constructs a new UnknownAccountException.
60       *
61       * @param message the reason for the exception
62       * @param cause   the underlying Throwable that caused this exception to be thrown.
63       */
64      public UnknownAccountException(String message, Throwable cause) {
65          super(message, cause);
66      }
67  }