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, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.ipc;
019
020import org.apache.hadoop.hbase.HBaseIOException;
021import org.apache.yetus.audience.InterfaceAudience;
022
023/**
024 * Indicate that the rpc server tells client to fallback to simple auth but client is disabled to do
025 * so.
026 */
027@InterfaceAudience.Public
028public class FallbackDisallowedException extends HBaseIOException {
029
030  private static final long serialVersionUID = -6942845066279358253L;
031
032  public FallbackDisallowedException() {
033    super("Server asks us to fall back to SIMPLE auth, "
034        + "but this client is configured to only allow secure connections.");
035  }
036}