001    /*
002     * Copyright (C) 2011 The Guava Authors
003     *
004     * Licensed under the Apache License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     * http://www.apache.org/licenses/LICENSE-2.0
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    
017    package com.google.common.util.concurrent;
018    
019    import com.google.common.annotations.Beta;
020    
021    /**
022     * Unchecked variant of {@link java.util.concurrent.ExecutionException}. As with
023     * {@code ExecutionException}, the exception's {@linkplain #getCause() cause}
024     * comes from a failed task, possibly run in another thread.
025     *
026     * <p>{@code UncheckedExecutionException} is intended as an alternative to
027     * {@code ExecutionException} when the exception thrown by a task is an
028     * unchecked exception. This allows the client code to continue to distinguish
029     * between checked and unchecked exceptions, even when they come from other
030     * threads.
031     *
032     * <p>When wrapping an {@code Error} from another thread, prefer {@link
033     * ExecutionError}.
034     *
035     * @author Charles Fry
036     * @since 10.0
037     */
038    @Beta
039    public class UncheckedExecutionException extends RuntimeException {
040      /**
041       * Creates a new instance with {@code null} as its detail message.
042       */
043      protected UncheckedExecutionException() {}
044    
045      /**
046       * Creates a new instance with the given detail message.
047       */
048      protected UncheckedExecutionException(String message) {
049        super(message);
050      }
051    
052      /**
053       * Creates a new instance with the given detail message and cause.
054       */
055      public UncheckedExecutionException(String message, Throwable cause) {
056        super(message, cause);
057      }
058    
059      /**
060       * Creates a new instance with the given cause.
061       */
062      public UncheckedExecutionException(Throwable cause) {
063        super(cause);
064      }
065    
066      private static final long serialVersionUID = 0;
067    }