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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    import com.google.common.annotations.GwtCompatible;
021    
022    /**
023     * Unchecked variant of {@link java.util.concurrent.ExecutionException}. As with
024     * {@code ExecutionException}, the exception's {@linkplain #getCause() cause}
025     * comes from a failed task, possibly run in another thread.
026     *
027     * <p>{@code UncheckedExecutionException} is intended as an alternative to
028     * {@code ExecutionException} when the exception thrown by a task is an
029     * unchecked exception. This allows the client code to continue to distinguish
030     * between checked and unchecked exceptions, even when they come from other
031     * threads.
032     *
033     * <p>When wrapping an {@code Error} from another thread, prefer {@link
034     * ExecutionError}.
035     *
036     * @author Charles Fry
037     * @since 10.0
038     */
039    @Beta
040    @GwtCompatible
041    public class UncheckedExecutionException extends RuntimeException {
042      /**
043       * Creates a new instance with {@code null} as its detail message.
044       */
045      protected UncheckedExecutionException() {}
046    
047      /**
048       * Creates a new instance with the given detail message.
049       */
050      protected UncheckedExecutionException(String message) {
051        super(message);
052      }
053    
054      /**
055       * Creates a new instance with the given detail message and cause.
056       */
057      public UncheckedExecutionException(String message, Throwable cause) {
058        super(message, cause);
059      }
060    
061      /**
062       * Creates a new instance with the given cause.
063       */
064      public UncheckedExecutionException(Throwable cause) {
065        super(cause);
066      }
067    
068      private static final long serialVersionUID = 0;
069    }