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/*
 * Copyright (C) 2013 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.Beta;
import com.google.common.annotations.GwtCompatible;

/**
 * Static utility methods pertaining to the {@link Runnable} interface.
 *
 * @since 16.0
 */
@Beta
@GwtCompatible
public final class Runnables {

  private static final Runnable EMPTY_RUNNABLE = new Runnable() {
    @Override
    public void run() {
    }
  };

  /**
   * Returns a {@link Runnable} instance that does nothing when run.
   */
  public static Runnable doNothing() {
    return EMPTY_RUNNABLE;
  }

  private Runnables() {
  }
}