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Special Java 1.8+ Library with extended collection related functionality

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/**
 * Copyright (C) 2014-2020 Philip Helger (www.helger.com)
 * philip[at]helger[dot]com
 *
 * 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.helger.collection.multimap;

import java.util.Map;

import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import javax.annotation.concurrent.ThreadSafe;

import com.helger.commons.collection.impl.ICommonsList;

/**
 * Abstract multi map based on {@link java.util.concurrent.ConcurrentHashMap}
 * and {@link ICommonsList} values.

 * Important note: null keys are not allowed here!
 *
 * @author Philip Helger
 * @param 
 *        key type
 * @param 
 *        value type
 */
@ThreadSafe
public abstract class AbstractMultiConcurrentHashMapListBased  extends
                                                              AbstractMultiConcurrentHashMap >
                                                              implements
                                                              IMultiMapListBased 
{
  public AbstractMultiConcurrentHashMapListBased ()
  {}

  public AbstractMultiConcurrentHashMapListBased (@Nonnull final KEYTYPE aKey, @Nullable final VALUETYPE aValue)
  {
    super (aKey, aValue);
  }

  public AbstractMultiConcurrentHashMapListBased (@Nonnull final KEYTYPE aKey, @Nonnull final ICommonsList  aCollection)
  {
    super (aKey, aCollection);
  }

  public AbstractMultiConcurrentHashMapListBased (@Nullable final Map > aCont)
  {
    super (aCont);
  }
}