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Micro-benchmarks to test the performance of core Mule functionality

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/*
 * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
 * The software in this package is published under the terms of the CPAL v1.0
 * license, a copy of which has been included with this distribution in the
 * LICENSE.txt file.
 */
package org.mule;

import static java.util.Arrays.asList;

import org.mule.runtime.api.util.MultiMap;

import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.Setup;

public class MultiMapBenchmark extends AbstractBenchmark {

  private MultiMap multiMap;

  @Setup
  public void setup() throws Exception {
    multiMap = new MultiMap<>();
    multiMap.put("key1", "value");
    multiMap.put("key10",
                 asList("value1", "value2", "value3", "value4", "value5", "value6", "value7", "value8", "value9", "value10"));
  }

  @Benchmark
  public MultiMap iteration() {
    MultiMap targetMap = new MultiMap<>();

    targetMap.putAll(multiMap);

    return targetMap;
  }

}