/*
 * Copyright 2002-2012 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations under the License.
 */
package org.springframework.security.authentication;

/**
 * <p>
 * Thrown if an authentication request could not be processed due to a system problem that occurred internally. It
 * differs from {@link AuthenticationServiceException} in that it would not be thrown if an external system has an
 * internal error or failure. This ensures that we can handle errors that are within our control distinctly from errors
 * of other systems. The advantage to this distinction is that the unrusted external system should not be able to fill
 * up logs and cause excessive IO. However, an internal system should report errors.
 * </p>
 * <p>
 * This might be thrown if a backend authentication repository is unavailable, for example. However, it would not be
 * thrown in the event that an error occurred when validating an OpenID response with an OpenID Provider.
 * </p>
 *
 * @author Rob Winch
 *
 */
public class InternalAuthenticationServiceException extends AuthenticationServiceException {

    public InternalAuthenticationServiceException(String message, Throwable cause) {
        super(message, cause);
    }

    public InternalAuthenticationServiceException(String message) {
        super(message);
    }
}