|  | // Copyright (C) 2017 The Android Open Source Project | 
|  | // | 
|  | // 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 com.google.gerrit.server.permissions; | 
|  |  | 
|  | import com.google.gerrit.common.Nullable; | 
|  |  | 
|  | /** | 
|  | * Thrown when {@link PermissionBackend} cannot compute the result. | 
|  | * | 
|  | * <p>This is typically a transient failure, such as a required group backend not responding to | 
|  | * membership requests. | 
|  | */ | 
|  | public class PermissionBackendException extends Exception { | 
|  | private static final long serialVersionUID = 1L; | 
|  |  | 
|  | public PermissionBackendException(String message) { | 
|  | super(message); | 
|  | } | 
|  |  | 
|  | public PermissionBackendException(@Nullable Throwable cause) { | 
|  | super(cause); | 
|  | } | 
|  |  | 
|  | public PermissionBackendException(String message, @Nullable Throwable cause) { | 
|  | super(message, cause); | 
|  | } | 
|  | } |