org.hibernate.PersistentObjectException: detached entity passed to persist 에러

 

에러 문구

org.hibernate.PersistentObjectException: detached entity passed to persist: com.chs.cafeapp.auth.user.entity.User
javax.persistence.PersistenceException: org.hibernate.PersistentObjectException: detached entity passed to persist: com.chs.cafeapp.auth.user.entity.User
	at app//org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:154)
	at app//org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:181)
	at app//org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:188)
	at app//org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:726)
	at app//org.hibernate.internal.SessionImpl.persist(SessionImpl.java:706)
	at java.base@20.0.1/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
	at java.base@20.0.1/java.lang.reflect.Method.invoke(Method.java:578)
	at app//org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:311)
	at app/jdk.proxy3/jdk.proxy3.$Proxy148.persist(Unknown Source)
	at app//com.chs.cafeapp.scheduler.DataBaseDeleteSchedulerTest.setUp(DataBaseDeleteSchedulerTest.java:75)
	at java.base@20.0.1/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
	at java.base@20.0.1/java.lang.reflect.Method.invoke(Method.java:578)
	at app//org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:688)
	at app//org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60)
	at app//org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:131)
	at app//org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:149)
	at app//org.junit.jupiter.engine.extension.TimeoutExtension.interceptLifecycleMethod(TimeoutExtension.java:126)
	at app//org.junit.jupiter.engine.extension.TimeoutExtension.interceptBeforeEachMethod(TimeoutExtension.java:76)
	at app//org.junit.jupiter.engine.execution.ExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(ExecutableInvoker.java:115)
	at app//org.junit.jupiter.engine.execution.ExecutableInvoker.lambda$invoke$0(ExecutableInvoker.java:105)
	at app//org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:106)
	at app//org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:64)
	at app//org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:45)
	at app//org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:37)
	at app//org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:104)
	at app//org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:98)
	at app//org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.invokeMethodInExtensionContext(ClassBasedTestDescriptor.java:490)
	at app//org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$synthesizeBeforeEachMethodAdapter$19(ClassBasedTestDescriptor.java:475)
	at app//org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeBeforeEachMethods$2(TestMethodTestDescriptor.java:167)
	at app//org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeBeforeMethodsOrCallbacksUntilExceptionOccurs$5(TestMethodTestDescriptor.java:195)
	at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
	at app//org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeBeforeMethodsOrCallbacksUntilExceptionOccurs(TestMethodTestDescriptor.java:195)
	at app//org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeBeforeEachMethods(TestMethodTestDescriptor.java:164)
	at app//org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:127)
	at app//org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:65)
	at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:139)
	at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
	at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:129)
	at app//org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
	at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:127)
	at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
	at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:126)
	at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:84)
	at java.base@20.0.1/java.util.ArrayList.forEach(ArrayList.java:1511)
	at app//org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:38)
	at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:143)
	at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
	at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:129)
	at app//org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
	at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:127)
	at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
	at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:126)
	at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:84)
	at java.base@20.0.1/java.util.ArrayList.forEach(ArrayList.java:1511)
	at app//org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:38)
	at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:143)
	at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
	at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:129)
	at app//org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
	at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:127)
	at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
	at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:126)
	at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:84)
	at app//org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:32)
	at app//org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57)
	at app//org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:51)
	at app//org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:107)
	at app//org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:88)
	at app//org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:54)
	at app//org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:67)
	at app//org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:52)
	at app//org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114)
	at app//org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86)
	at app//org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86)
	at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.processAllTestClasses(JUnitPlatformTestClassProcessor.java:118)
	at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.access$000(JUnitPlatformTestClassProcessor.java:93)
	at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor.stop(JUnitPlatformTestClassProcessor.java:88)
	at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.stop(SuiteTestClassProcessor.java:62)
	at java.base@20.0.1/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
	at java.base@20.0.1/java.lang.reflect.Method.invoke(Method.java:578)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:36)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
	at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:33)
	at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:94)
	at jdk.proxy1/jdk.proxy1.$Proxy2.stop(Unknown Source)
	at org.gradle.api.internal.tasks.testing.worker.TestWorker$3.run(TestWorker.java:193)
	at org.gradle.api.internal.tasks.testing.worker.TestWorker.executeAndMaintainThreadName(TestWorker.java:129)
	at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:100)
	at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:60)
	at org.gradle.process.internal.worker.child.ActionExecutionWorker.execute(ActionExecutionWorker.java:56)
	at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:113)
	at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:65)
	at app//worker.org.gradle.process.internal.worker.GradleWorkerMain.run(GradleWorkerMain.java:69)
	at app//worker.org.gradle.process.internal.worker.GradleWorkerMain.main(GradleWorkerMain.java:74)
Caused by: org.hibernate.PersistentObjectException: detached entity passed to persist: com.chs.cafeapp.auth.user.entity.User
	at app//org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:120)
	at app//org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:55)
	at app//org.hibernate.event.service.internal.EventListenerGroupImpl.fireEventOnEachListener(EventListenerGroupImpl.java:93)
	at app//org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:720)
	... 90 more

 

해당 상황

User 엔티티 클래스

@Entity
@Builder
@Getter
@NoArgsConstructor
@AllArgsConstructor
public class User extends BaseEntity {
    @Id @GeneratedValue(strategy = GenerationType.IDENTITY)
    private long id;

    @Column(unique = true)
    private String loginId; // 이메일
    private String password;
    private String userName;

    @Column(unique = true)
    private String nickName;
    private int age;
    private String emailAuthKey;

    @Enumerated(EnumType.STRING)
    private UserSex sex;
    @Enumerated(EnumType.STRING)
    private UserStatus userStatus; //이용 가능한상태, 정지상태
    @Enumerated(EnumType.STRING)
    private Authority authority; // 사용자는 ROLE_USER

    private LocalDateTime lastLoginDateTime;
...
}

 

테스트 코드

  @BeforeEach
  void setUp() {
    Order order = Order.builder()
        .id(2L)
        .orderStatus(OrderStatus.PayFail)
        .totalPrice(4100)
        .build();
    em.merge(order);

    User user = User.builder()
        .id(2L)
        .userName("신생사용자 이름")
        .build();
    user.setUpdateDateTime(LocalDateTime.now().minusYears(2));
    em.persist(user);
    em.flush();
    
  }

 

해당 상황에서 생긴 오류 문구였는데,

이 오류는 Hibernate에서 관리되지 않는(detached) 엔티티를 persist() 메소드에 전달하여 발생한다는 의미다.

 

 

해결

내가 저장한적이 없고 builder패턴으로 생성한 User가 왜 관리되지 않는 엔티티인지 궁금했다. 아무 의미없이 em.merge(user)로 될때는 해당 에러가 없는게 궁금했다.

 

구글링을 해보니 내가 user id를 자동으로 생성되도록 설정해놓고 내가 빌더로 지정해서 생긴 오류였다.

 

자동으로 생성되는건데 내가 지정하니 JPA 입장에서는 왜 저렇게 만들었냐, 이건 관리 못한다 라고 말하는 것 같다.

 

만약 아이디값이 특정 아이디값으로 필요한 테스트 경우에는 em.persist()를 쓰지 않고 em.merge로 진행해야겠다.

 

  @BeforeEach
  void setUp() {
...

    User user = User.builder()
        .id(2L)
        .userName("신생사용자 이름")
        .build();
    user.setUpdateDateTime(LocalDateTime.now().minusYears(2));
    em.merge(user);
    em.flush();

}