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     */
019    package org.apache.shiro.config;
020    
021    /**
022     * Exception thrown when a reference to an object is made, but that object cannot be found.  This is most likely
023     * thrown due to a configuration line that references an object that hasn't been defined yet.
024     *
025     * @author Les Hazlewood
026     * @since 0.9 RC2
027     */
028    public class UnresolveableReferenceException extends ConfigurationException {
029    
030        /**
031         * Creates a new UnresolveableReferenceException.
032         */
033        public UnresolveableReferenceException() {
034            super();
035        }
036    
037        /**
038         * Constructs a new UnresolveableReferenceException.
039         *
040         * @param message the reason for the exception
041         */
042        public UnresolveableReferenceException(String message) {
043            super(message);
044        }
045    
046        /**
047         * Constructs a new UnresolveableReferenceException.
048         *
049         * @param cause the underlying Throwable that caused this exception to be thrown.
050         */
051        public UnresolveableReferenceException(Throwable cause) {
052            super(cause);
053        }
054    
055        /**
056         * Constructs a new UnresolveableReferenceException.
057         *
058         * @param message the reason for the exception
059         * @param cause   the underlying Throwable that caused this exception to be thrown.
060         */
061        public UnresolveableReferenceException(String message, Throwable cause) {
062            super(message, cause);
063        }
064    }