/*
 * Copyright (C) 2011 The Guava Authors
 *
 * 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.common.util.concurrent;

import com.google.common.annotations.GwtCompatible;

import javax.annotation.Nullable;

/**
 * Unchecked variant of {@link java.util.concurrent.ExecutionException}. As with
 * {@code ExecutionException}, the exception's {@linkplain #getCause() cause} comes from a failed
 * task, possibly run in another thread.
 *
 * <p>{@code UncheckedExecutionException} is intended as an alternative to
 * {@code ExecutionException} when the exception thrown by a task is an unchecked exception.
 * However, it may also wrap a checked exception in some cases.
 *
 * <p>When wrapping an {@code Error} from another thread, prefer {@link ExecutionError}. When
 * wrapping a checked exception, prefer {@code
 * ExecutionException}.
 *
 * @author Charles Fry
 * @since 10.0
 */
@GwtCompatible
public class UncheckedExecutionException extends RuntimeException {
  /**
   * Creates a new instance with {@code null} as its detail message.
   */
  protected UncheckedExecutionException() {}

  /**
   * Creates a new instance with the given detail message.
   */
  protected UncheckedExecutionException(@Nullable String message) {
    super(message);
  }

  /**
   * Creates a new instance with the given detail message and cause.
   */
  public UncheckedExecutionException(@Nullable String message, @Nullable Throwable cause) {
    super(message, cause);
  }

  /**
   * Creates a new instance with the given cause.
   */
  public UncheckedExecutionException(@Nullable Throwable cause) {
    super(cause);
  }

  private static final long serialVersionUID = 0;
}
