尝试使用 Erwin Vervaet 的框架存储时间集合并获取 ClassCastException
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【中文标题】尝试使用 Erwin Vervaet 的框架存储时间集合并获取 ClassCastException【英文标题】：Trying to store a temporal collection with Erwin Vervaet's framework and getting ClassCastException 【发布时间】：2019-09-21 07:32:01 【问题描述】：我正在尝试使用 Erwin Vervaet 的 Bitemporal framework 与 Hibernate 一起存储时间集合，而不是他的示例中的时间属性。 （有框架的介绍here）
我正在尝试存储随时间变化的地址集合，即一个人可以同时拥有多个地址，而这组地址可以改变。
映射有效，我的意思是表是在数据库中创建的，但我收到以下运行时错误：
java.lang.ClassCastException: com.ervacon.bitemporal.AddressSet cannot be cast to java.util.Collection
我不明白这个错误。我知道当 Hibernate 尝试构建 Person 的 addresses 包时正在执行转换，但为什么它会得到 ClassCastException？如果我在entity-name="AddressSet" 映射中注释掉value 的映射，我没有错误，但地址没有保存。所以问题出在我认为的映射中。
我也不明白我想要实现的目标是否可以用这个框架来完成。
你能帮帮我吗？
我如何修改 Vervaet 的示例：我添加了 AddressSet 类并修改了 Hibernate 映射、Person 和测试类
涉及的类如下：
人物
/*
* (c) Copyright Ervacon 2016.
* All Rights Reserved.
*/
package com.ervacon.bitemporal;
import java.io.Serializable;
import java.util.Collection;
import java.util.LinkedList;
public class Person implements Serializable
private Long id;
private String name;
private Collection<BitemporalWrapper<AddressSet>> addresses = new LinkedList<>();
private Collection<BitemporalWrapper<Boolean>> alive = new LinkedList<>();
/**
* For Hibernate.
*/
@SuppressWarnings("unused")
private Person()
public Person(String name)
if (name == null)
throw new IllegalArgumentException("Name is required");
this.name = name;
public Long getId()
return id;
public String getName()
return name;
public WrappedBitemporalProperty<AddressSet> addresses()
return new WrappedBitemporalProperty<>(addresses);
public WrappedBitemporalProperty<Boolean> alive()
return new WrappedBitemporalProperty<>(alive);
@Override
public String toString()
return getName();
地址
/*
* (c) Copyright Ervacon 2016.
* All Rights Reserved.
*/
package com.ervacon.bitemporal;
import java.io.Serializable;
public class Address implements Serializable
private String line1;
private String line2;
private String line3;
private long id;
/**
* For Hibernate.
Address.java*/
@SuppressWarnings("unused")
private Address()
public Address(String line1, String line2, String line3)
this.line1 = line1;
this.line2 = line2;
this.line3 = line3;
public String getLine1()
return line1;
public String getLine2()
return line2;
public String getLine3()
return line3;
@Override
public boolean equals(Object obj)
if (obj == this)
return true;
if (obj instanceof Address)
Address other = (Address) obj;
return other.line1.equals(this.line1)
&& other.line2.equals(this.line2)
&& other.line3.equals(this.line3);
return false;
@Override
public int hashCode()
return this.line1.hashCode() + this.line2.hashCode() + this.line3.hashCode();
@Override
public String toString()
return this.line1 + " " + line2 + " " + line3;
public long getId()
return id;
public void setId(long id)
this.id = id;
地址集
package com.ervacon.bitemporal;
import java.io.Serializable;
import java.util.Set;
public class AddressSet implements Serializable
private List<Address> addressSet;
private long id;
private AddressSet()
public AddressSet(List<Address> a)
this.addressSet = a;
public List<Address> getAddressSet()
return addressSet;
public void setAddressSet(List<Address> addressSet)
this.addressSet = addressSet;
映射为：
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping default-access="field">
<class name="com.ervacon.bitemporal.BitemporalWrapper" entity-name="AddressSet">
<id name="id" type="long">
<generator class="native"/>
</id>
<bag name="value">
<key column="addressSet_id"/>
<one-to-many class="com.ervacon.bitemporal.Address"/>
</bag>
<property name="validityInterval" type="com.ervacon.bitemporal.support.PersistentInterval">
<column name="validityStart"/>
<column name="validityEnd"/>
</property>
<property name="recordInterval" type="com.ervacon.bitemporal.support.PersistentInterval">
<column name="recordStart"/>
<column name="recordEnd"/>
</property>
</class>
<class name="com.ervacon.bitemporal.Person">
<id name="id" type="long">
<generator class="native"/>
</id>
<property name="name"/>
<!-- <bag name="address" cascade="all-delete-orphan">
<key column="person_id" not-null="true" update="false"/>
<one-to-many entity-name="Address"/>
</bag>
-->
<bag name="addresses" cascade="all-delete-orphan">
<key column="person_id" not-null="true" update="false"/>
<one-to-many entity-name="AddressSet"/>
</bag>
<bag name="alive" cascade="all-delete-orphan">
<key column="person_id" not-null="true" update="false"/>
<one-to-many entity-name="Alive"/>
</bag>
</class>
<class name="com.ervacon.bitemporal.Address">
<id name="id" type="long">
<generator class="native"/>
</id>
<property name="line1"/>
<property name="line2"/>
<property name="line3"/>
</class>
<class name="com.ervacon.bitemporal.BitemporalWrapper" entity-name="Alive">
<id name="id" type="long">
<generator class="native"/>
</id>
<property name="value" type="boolean"/>
<property name="validityInterval" type="com.ervacon.bitemporal.support.PersistentInterval">
<column name="validityStart"/>
<column name="validityEnd"/>
</property>
<property name="recordInterval" type="com.ervacon.bitemporal.support.PersistentInterval">
<column name="recordStart"/>
<column name="recordEnd"/>
</property>
</class>
</hibernate-mapping>
测试
package com.ervacon.bitemporal;
import java.util.ArrayList;
import java.util.List;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import org.junit.Before;
import org.junit.Test;
public class HibernateTest
private SessionFactory sessionFactory;
@Before
public void setUp()
System.err.println("Before");
try
sessionFactory = new Configuration().configure().buildSessionFactory();
catch (HibernateException e)
// TODO Auto-generated catch block
e.printStackTrace();
//@After
public void tearDown() throws Exception
sessionFactory.close();
TimeUtils.clearReference();
@Test
public void testPersistence()
System.err.println("Testing");
Session session = sessionFactory.openSession();
session.beginTransaction();
TimeUtils.setReference(TimeUtils.day(4, 4, 1975));
Person johnDoe = new Person("John Doe");
johnDoe.alive().set(
true,
TimeUtils.from(TimeUtils.day(3, 4, 1975)));
AddressSet addressSet = new AddressSet(new ArrayList<>());
List<Address> addressList1 = new ArrayList<>();
addressList1.add(new Address("Address1.1", "", ""));
addressSet.setAddressSet(addressList1);
johnDoe.addresses().set(
addressSet,
TimeUtils.from(TimeUtils.day(3, 4, 1975)));
AddressSet addressSet2 = new AddressSet(new ArrayList<>());
List<Address> addressList2 = new ArrayList<>();
addressList2.add(new Address("Address2.1", "", ""));
addressSet2.setAddressSet(addressList2);
johnDoe.addresses().set(
addressSet2,
TimeUtils.from(TimeUtils.day(3, 4, 1976)));
try
session.save(johnDoe);
session.getTransaction().commit();
session.close();
catch (Exception e)
// TODO Auto-generated catch block
e.printStackTrace();
完全的例外是
java.lang.ClassCastException: com.ervacon.bitemporal.AddressSet cannot be cast to java.util.Collection
at org.hibernate.type.BagType.wrap(BagType.java:35)
at org.hibernate.event.internal.WrapVisitor.processArrayOrNewCollection(WrapVisitor.java:91)
at org.hibernate.event.internal.WrapVisitor.processCollection(WrapVisitor.java:56)
at org.hibernate.event.internal.AbstractVisitor.processValue(AbstractVisitor.java:104)
at org.hibernate.event.internal.WrapVisitor.processValue(WrapVisitor.java:108)
at org.hibernate.event.internal.AbstractVisitor.processEntityPropertyValues(AbstractVisitor.java:59)
at org.hibernate.event.internal.AbstractSaveEventListener.visitCollectionsBeforeSave(AbstractSaveEventListener.java:354)
at org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:260)
at org.hibernate.event.internal.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:182)
at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:113)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:192)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:177)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:97)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:73)
at org.hibernate.internal.SessionImpl.fireSaveOrUpdate(SessionImpl.java:651)
at org.hibernate.internal.SessionImpl.saveOrUpdate(SessionImpl.java:643)
at org.hibernate.engine.spi.CascadingActions$5.cascade(CascadingActions.java:218)
at org.hibernate.engine.internal.Cascade.cascadeToOne(Cascade.java:391)
at org.hibernate.engine.internal.Cascade.cascadeAssociation(Cascade.java:316)
at org.hibernate.engine.internal.Cascade.cascadeProperty(Cascade.java:155)
at org.hibernate.engine.internal.Cascade.cascadeCollectionElements(Cascade.java:424)
at org.hibernate.engine.internal.Cascade.cascadeCollection(Cascade.java:356)
at org.hibernate.engine.internal.Cascade.cascadeAssociation(Cascade.java:319)
at org.hibernate.engine.internal.Cascade.cascadeProperty(Cascade.java:155)
at org.hibernate.engine.internal.Cascade.cascade(Cascade.java:104)
at org.hibernate.event.internal.AbstractSaveEventListener.cascadeAfterSave(AbstractSaveEventListener.java:445)
at org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:281)
at org.hibernate.event.internal.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:182)
at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:113)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:192)
at org.hibernate.event.internal.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:38)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:177)
at org.hibernate.event.internal.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:32)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:73)
at org.hibernate.internal.SessionImpl.fireSave(SessionImpl.java:682)
at org.hibernate.internal.SessionImpl.save(SessionImpl.java:674)
at org.hibernate.internal.SessionImpl.save(SessionImpl.java:669)
at com.ervacon.bitemporal.HibernateTest.testPersistence(HibernateTest.java:60)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:678)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
编辑：将AddressSet 中的Set 更改为List，因为在使用Tijkijiki 的解决方案后，当Hibernate 构建包时出现错误。在此之后，测试通过了。
但是我在测试中添加了两组AddressSet（现在已经修改了原始帖子），现在我收到了这个错误，有人可以解释一下为什么吗？ AddressSet 对象对我来说似乎不同。
ERROR: HHH000346: Error during managed flush [Found shared references to a collection: AddressSet.value.addressSet]
org.hibernate.HibernateException: Found shared references to a collection: AddressSet.value.addressSet
at org.hibernate.engine.internal.Collections.processReachableCollection(Collections.java:182)
at org.hibernate.event.internal.FlushVisitor.processCollection(FlushVisitor.java:42)
at org.hibernate.event.internal.AbstractVisitor.processValue(AbstractVisitor.java:104)
at org.hibernate.event.internal.AbstractVisitor.processValue(AbstractVisitor.java:65)
at org.hibernate.event.internal.AbstractVisitor.processValues(AbstractVisitor.java:44)
at org.hibernate.event.internal.AbstractVisitor.processComponent(AbstractVisitor.java:85)
at org.hibernate.event.internal.AbstractVisitor.processValue(AbstractVisitor.java:110)
at org.hibernate.event.internal.AbstractVisitor.processValue(AbstractVisitor.java:65)
at org.hibernate.event.internal.AbstractVisitor.processEntityPropertyValues(AbstractVisitor.java:59)
at org.hibernate.event.internal.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:155)
at org.hibernate.event.internal.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:216)
at org.hibernate.event.internal.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:85)
at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:38)
at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1295)
at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:468)
at org.hibernate.internal.SessionImpl.flushBeforeTransactionCompletion(SessionImpl.java:3135)
at org.hibernate.internal.SessionImpl.beforeTransactionCompletion(SessionImpl.java:2352)
at org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.beforeTransactionCompletion(JdbcCoordinatorImpl.java:491)
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.beforeCompletionCallback(JdbcResourceLocalTransactionCoordinatorImpl.java:147)
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.access$100(JdbcResourceLocalTransactionCoordinatorImpl.java:38)
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.commit(JdbcResourceLocalTransactionCoordinatorImpl.java:231)
at org.hibernate.engine.transaction.internal.TransactionImpl.commit(TransactionImpl.java:65)
at com.ervacon.bitemporal.HibernateTest.testPersistence(HibernateTest.java:77)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:678)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
【问题讨论】：
【参考方案1】：问题出在你的映射上，BitemporalWrapper<AddressSet> 应该将 value 映射到 AddressSet
<class name="com.ervacon.bitemporal.Person">
<id name="id" type="long">
<generator class="native"/>
</id>
<property name="name"/>
<bag name="addresses" cascade="all-delete-orphan">
<key column="person_id" not-null="true" update="false"/>
<one-to-many entity-name="AddressSet"/>
</bag>
<bag name="alive" cascade="all-delete-orphan">
<key column="person_id" not-null="true" update="false"/>
<one-to-many entity-name="Alive"/>
</bag>
</class>
<class name="com.ervacon.bitemporal.BitemporalWrapper" entity-name="AddressSet">
<id name="id" type="long">
<generator class="native"/>
</id>
<component name="value" class="com.ervacon.bitemporal.AddressSet">
<bag name="addressSet" cascade="all-delete-orphan">
<key column="addressSet_id" not-null="true" update="false"/>
<one-to-many entity-name="Address"/>
</bag>
</component>
<property name="validityInterval" type="com.ervacon.bitemporal.support.PersistentInterval">
<column name="validityStart"/>
<column name="validityEnd"/>
</property>
<property name="recordInterval" type="com.ervacon.bitemporal.support.PersistentInterval">
<column name="recordStart"/>
<column name="recordEnd"/>
</property>
</class>
<class name="com.ervacon.bitemporal.Address" entity-name="Address">
<id name="id" type="long">
<generator class="native"/>
</id>
<property name="line1"/>
<property name="line2"/>
<property name="line3"/>
</class>
<class name="com.ervacon.bitemporal.BitemporalWrapper" entity-name="Alive">
<id name="id" type="long">
<generator class="native"/>
</id>
<property name="value" type="boolean"/>
<property name="validityInterval" type="com.ervacon.bitemporal.support.PersistentInterval">
<column name="validityStart"/>
<column name="validityEnd"/>
</property>
<property name="recordInterval" type="com.ervacon.bitemporal.support.PersistentInterval">
<column name="recordStart"/>
<column name="recordEnd"/>
</property>
</class>
在寻找解决方案时我发现，获取版本化实体是在 java 中完成的，not in a query。所以我个人不会走这条路。
编辑：来自this answer
当您尝试持久化多个时，Hibernate 会显示此错误 实体实例共享相同的集合引用（即 集合标识与集合相等性对比）。
所以我稍微深入研究了双时间框架，我认为，这个问题是here，它基本上是用新的记录间隔增加了附加值，但是value is not copied，在大多数情况下都不是问题。但是由于我们的对象在两个 BitemporalWrappers 中使用并且它具有相同的集合引用（因为它的对象相同），所以会引发异常。
为了证明我的理论（老实说，这对我来说有点薄冰；我不确定我的理解是否正确）我对框架进行了以下更改：V 的类型实现Serializabe，所以我克隆 BittemporalWrapper 时可以使用 commons-lang3 SerializationUtils 并返回 V value 的副本：
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.9</version>
</dependency>
public class BitemporalWrapper<V extends Serializable> implements Bitemporal, Serializable
...
@Override
public Bitemporal copyWith(Interval validityInterval)
// force record interval to be 'from now'
return new BitemporalWrapper<>(SerializationUtils.clone(value), validityInterval);
...
public class WrappedBitemporalProperty<V extends Serializable> extends BitemporalProperty<V, BitemporalWrapper<V>> ...
public class BitemporalProperty<V extends Serializable, T extends Bitemporal> implements Serializable ..
现在测试通过了。如果您有兴趣，我可以分享我的更改。
【讨论】：
谢谢，您的解决方案几乎没问题。你能解释一下为什么需要component 并且不能像 Vervaet 在示例中那样直接使用包吗？而且，你能帮我解决我现在遇到的错误吗？ （请参阅帖子底部的编辑部分）
我不知道你的意思是这个例子，因为演示文稿包含他们的测试用例示例。看看这里github.com/klr8/bitemporal/blob/master/src/test/resources/com/…。值BitemporalWrapper 的映射是作为组件的实体。这就是ClassCastException 的原因，因为映射到包（集合）不能转换为AddressSet。我还更新了测试用例，将addressSet 的类型更改为您提到的列表，但我没有得到任何异常。你有什么改变吗？
“示例”是指您所指的测试用例，但我错了（完全错过了），Vervaet 也使用了component，谢谢您指出。我没有更改任何其他内容，但是在名为“测试”的文件中，如果我设置addressSet（使用johnDoe.addresses().set(...)）测试通过，但如果我也设置addressSet2，我得到共享引用错误。
当您回答原始问题时，我奖励您赏金，但在结束问题之前，我也对您对框架所做的更改感兴趣。除了您在此处发布的更改之外，还有其他更改吗？
出于序列化目的，我创建了AddressSet public 的空构造函数，还添加了getter 和setter。我不知道有任何其他更改。您还有其他问题吗？以上是关于尝试使用 Erwin Vervaet 的框架存储时间集合并获取 ClassCastException的主要内容，如果未能解决你的问题，请参考以下文章
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