001/* 002 * Copyright (C) 2011 The Guava Authors 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except 005 * in compliance with the License. You may obtain a copy of the License at 006 * 007 * http://www.apache.org/licenses/LICENSE-2.0 008 * 009 * Unless required by applicable law or agreed to in writing, software distributed under the License 010 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express 011 * or implied. See the License for the specific language governing permissions and limitations under 012 * the License. 013 */ 014 015package com.google.common.util.concurrent; 016 017import com.google.common.annotations.GwtCompatible; 018import org.checkerframework.checker.nullness.qual.Nullable; 019 020/** 021 * {@link Error} variant of {@link java.util.concurrent.ExecutionException}. As with {@code 022 * ExecutionException}, the error's {@linkplain #getCause() cause} comes from a failed task, 023 * possibly run in another thread. That cause should itself be an {@code Error}; if not, use {@code 024 * ExecutionException} or {@link UncheckedExecutionException}. This allows the client code to 025 * continue to distinguish between exceptions and errors, even when they come from other threads. 026 * 027 * @author Chris Povirk 028 * @since 10.0 029 */ 030@GwtCompatible 031public class ExecutionError extends Error { 032 /** Creates a new instance with {@code null} as its detail message. */ 033 protected ExecutionError() {} 034 035 /** Creates a new instance with the given detail message. */ 036 protected ExecutionError(@Nullable String message) { 037 super(message); 038 } 039 040 /** Creates a new instance with the given detail message and cause. */ 041 public ExecutionError(@Nullable String message, @Nullable Error cause) { 042 super(message, cause); 043 } 044 045 /** Creates a new instance with the given cause. */ 046 public ExecutionError(@Nullable Error cause) { 047 super(cause); 048 } 049 050 private static final long serialVersionUID = 0; 051}