content: /*
   ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
   ~                                                                               ~
   ~ The MIT License (MIT)                                                         ~
   ~                                                                               ~
   ~ Copyright (c) 2015-2025 miaixz.org and other contributors.                    ~
   ~                                                                               ~
   ~ Permission is hereby granted, free of charge, to any person obtaining a copy  ~
   ~ of this software and associated documentation files (the "Software"), to deal ~
   ~ in the Software without restriction, including without limitation the rights  ~
   ~ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell     ~
   ~ copies of the Software, and to permit persons to whom the Software is         ~
   ~ furnished to do so, subject to the following conditions:                      ~
   ~                                                                               ~
   ~ The above copyright notice and this permission notice shall be included in    ~
   ~ all copies or substantial portions of the Software.                           ~
   ~                                                                               ~
   ~ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR    ~
   ~ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,      ~
   ~ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE   ~
   ~ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER        ~
   ~ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, ~
   ~ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN     ~
   ~ THE SOFTWARE.                                                                 ~
   ~                                                                               ~
   ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
  */
  package org.miaixz.bus.core.lang.ref;
  
  import java.lang.ref.PhantomReference;
  import java.lang.ref.ReferenceQueue;
  import java.util.Objects;
  
  import org.miaixz.bus.core.xyz.ObjectKit;
  
  /**
   * 虚引用对象，在GC时发现虚引用对象，会将{@link PhantomReference}插入{@link ReferenceQueue}。
   * 此时对象未被真正回收，要等到{@link ReferenceQueue}被真正处理后才会被回收。
   *
   * @param <T> 键类型
   * @author Kimi Liu
   * @since Java 17+
   */
  public class PhantomObject<T> extends PhantomReference<T> implements Ref<T> {
  
      private final int hashCode;
  
      /**
       * 构造
       *
       * @param object 原始对象
       * @param queue  {@link ReferenceQueue}
       */
      public PhantomObject(final T object, final ReferenceQueue<? super T> queue) {
          super(object, queue);
          hashCode = Objects.hashCode(object);
      }
  
      @Override
      public int hashCode() {
          return hashCode;
      }
  
      @Override
      public boolean equals(final Object other) {
          if (other == this) {
              return true;
          } else if (other instanceof PhantomObject) {
              return ObjectKit.equals(((PhantomObject<?>) other).get(), get());
          }
          return false;
      }
  
  }
  