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    1   /*
    2    * Copyright 2012 The Netty Project
    3    *
    4    * The Netty Project licenses this file to you under the Apache License,
    5    * version 2.0 (the "License"); you may not use this file except in compliance
    6    * with the License. You may obtain a copy of the License at:
    7    *
    8    *   http://www.apache.org/licenses/LICENSE-2.0
    9    *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
    12   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
    13   * License for the specific language governing permissions and limitations
    14   * under the License.
    15   */
    16  package org.jboss.netty.handler.codec.serialization;
    17
    18  import java.lang.ref.Reference;
    19  import java.lang.ref.WeakReference;
    20  import java.util.Map;
    21
    22  public class WeakReferenceMap<K, V> extends ReferenceMap<K, V> {
    23
    24      public WeakReferenceMap(Map<K, Reference<V>> delegate) {
    25          super(delegate);
    26      }
    27
    28      @Override
    29      Reference<V> fold(V value) {
    30          return new WeakReference<V>(value);
    31      }
    32
    33  }