content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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
   *
   *     https://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 org.apache.avro.util;
  
  import java.util.concurrent.ConcurrentMap;
  import java.util.function.Function;
  
  public class MapUtil {
  
    private MapUtil() {
      super();
    }
  
    /**
     * A temporary workaround for Java 8 specific performance issue JDK-8161372.
     *
     * @see <a href=
     *      "https://bugs.openjdk.java.net/browse/JDK-8161372">JDK-8161372</a>
     * @deprecated As of JDK 1.9 this issue has been resolved.
     */
    // TODO: Remove for 1.13.0 or later
    @Deprecated
    public static <K, V> V computeIfAbsent(ConcurrentMap<K, V> map, K key, Function<K, V> mappingFunction) {
      V value = map.get(key);
      if (value != null) {
        return value;
      }
      return map.computeIfAbsent(key, mappingFunction::apply);
    }
  
  }
  