인프런 커뮤니티 질문&답변

좋아요 수에 대해서 구현을 할 때 @Version이 붙을 경우 계속 해서 에러가 발생을 합니다.
@Version을 이용을 할 시에 좋아요 수 JPA를 이용해서 저장을 하는 Method가 있는 부분에@Lock(LockMode.OPTIMISTIC)을 붙여주면 에러가 발생을 하지 않습니다.

혹시 에러가 나는게 당연한 건지 아니면 잘못 되어서 에러가 나는지 궁금하고 해당 에러를 해결 하는 방법 중 다른 것이 있는지 궁금합니다.

발생하는 에러의 경우 아래와 같이 발생을 합니다.

org.hibernate.StaleObjectStateException: Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect): [kr.co.won.like.entity.ArticleLikeCountEntity#1111]
	at org.hibernate.event.internal.DefaultMergeEventListener.entityIsDetached(DefaultMergeEventListener.java:426) ~[hibernate-core-6.6.5.Final.jar:6.6.5.Final]
	at org.hibernate.event.internal.DefaultMergeEventListener.merge(DefaultMergeEventListener.java:214) ~[hibernate-core-6.6.5.Final.jar:6.6.5.Final]
	at org.hibernate.event.internal.DefaultMergeEventListener.doMerge(DefaultMergeEventListener.java:152) ~[hibernate-core-6.6.5.Final.jar:6.6.5.Final]
	at org.hibernate.event.internal.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:136) ~[hibernate-core-6.6.5.Final.jar:6.6.5.Final]
	at org.hibernate.event.internal.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:89) ~[hibernate-core-6.6.5.Final.jar:6.6.5.Final]
	at org.hibernate.event.service.internal.EventListenerGroupImpl.fireEventOnEachListener(EventListenerGroupImpl.java:127) ~[hibernate-core-6.6.5.Final.jar:6.6.5.Final]
	at org.hibernate.internal.SessionImpl.fireMerge(SessionImpl.java:854) ~[hibernate-core-6.6.5.Final.jar:6.6.5.Final]
	at org.hibernate.internal.SessionImpl.merge(SessionImpl.java:840) ~[hibernate-core-6.6.5.Final.jar:6.6.5.Final]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[na:na]
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
	at java.base/java.lang.reflect.Method.invoke(Method.java:569) ~[na:na]
	at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:320) ~[spring-orm-6.2.2.jar:6.2.2]
	at jdk.proxy2/jdk.proxy2.$Proxy114.merge(Unknown Source) ~[na:na]
	at org.springframework.data.jpa.repository.support.SimpleJpaRepository.save(SimpleJpaRepository.java:630) ~[spring-data-jpa-3.4.2.jar:3.4.2]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[na:na]
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
	at java.base/java.lang.reflect.Method.invoke(Method.java:569) ~[na:na]
	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:359) ~[spring-aop-6.2.2.jar:6.2.2]
	at org.springframework.data.repository.core.support.RepositoryMethodInvoker$RepositoryFragmentMethodInvoker.lambda$new$0(RepositoryMethodInvoker.java:277) ~[spring-data-commons-3.4.2.jar:3.4.2]
	at org.springframework.data.repository.core.support.RepositoryMethodInvoker.doInvoke(RepositoryMethodInvoker.java:170) ~[spring-data-commons-3.4.2.jar:3.4.2]
	at org.springframework.data.repository.core.support.RepositoryMethodInvoker.invoke(RepositoryMethodInvoker.java:158) ~[spring-data-commons-3.4.2.jar:3.4.2]
	at org.springframework.data.repository.core.support.RepositoryComposition$RepositoryFragments.invoke(RepositoryComposition.java:515) ~[spring-data-commons-3.4.2.jar:3.4.2]
	at org.springframework.data.repository.core.support.RepositoryComposition.invoke(RepositoryComposition.java:284) ~[spring-data-commons-3.4.2.jar:3.4.2]
	at org.springframework.data.repository.core.support.RepositoryFactorySupport$ImplementationMethodExecutionInterceptor.invoke(RepositoryFactorySupport.java:752) ~[spring-data-commons-3.4.2.jar:3.4.2]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:184) ~[spring-aop-6.2.2.jar:6.2.2]
	at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.doInvoke(QueryExecutorMethodInterceptor.java:174) ~[spring-data-commons-3.4.2.jar:3.4.2]
	at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.invoke(QueryExecutorMethodInterceptor.java:149) ~[spring-data-commons-3.4.2.jar:3.4.2]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:184) ~[spring-aop-6.2.2.jar:6.2.2]
	at org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:69) ~[spring-data-commons-3.4.2.jar:3.4.2]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:184) ~[spring-aop-6.2.2.jar:6.2.2]
	at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:380) ~[spring-tx-6.2.2.jar:6.2.2]
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:119) ~[spring-tx-6.2.2.jar:6.2.2]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:184) ~[spring-aop-6.2.2.jar:6.2.2]
	at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:138) ~[spring-tx-6.2.2.jar:6.2.2]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:184) ~[spring-aop-6.2.2.jar:6.2.2]
	at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:165) ~[spring-data-jpa-3.4.2.jar:3.4.2]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:184) ~[spring-aop-6.2.2.jar:6.2.2]
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:223) ~[spring-aop-6.2.2.jar:6.2.2]
	at jdk.proxy2/jdk.proxy2.$Proxy121.save(Unknown Source) ~[na:na]
	at kr.co.won.like.service.ArticleLikeService.likePessimisticLock(ArticleLikeService.java:80) ~[main/:na]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[na:na]
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
	at java.base/java.lang.reflect.Method.invoke(Method.java:569) ~[na:na]
	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:359) ~[spring-aop-6.2.2.jar:6.2.2]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:196) ~[spring-aop-6.2.2.jar:6.2.2]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) ~[spring-aop-6.2.2.jar:6.2.2]
	at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:380) ~[spring-tx-6.2.2.jar:6.2.2]
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:119) ~[spring-tx-6.2.2.jar:6.2.2]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:184) ~[spring-aop-6.2.2.jar:6.2.2]
	at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:727) ~[spring-aop-6.2.2.jar:6.2.2]
	at kr.co.won.like.service.ArticleLikeService$$SpringCGLIB$$0.likePessimisticLock(<generated>) ~[main/:na]
	at kr.co.won.like.controller.ArticleLikeController.likePessimisticLockUsingArticleLikeUser(ArticleLikeController.java:39) ~[main/:na]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[na:na]
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
	at java.base/java.lang.reflect.Method.invoke(Method.java:569) ~[na:na]
	at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:257) ~[spring-web-6.2.2.jar:6.2.2]
	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:190) ~[spring-web-6.2.2.jar:6.2.2]
	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:118) ~[spring-webmvc-6.2.2.jar:6.2.2]
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:986) ~[spring-webmvc-6.2.2.jar:6.2.2]
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:891) ~[spring-webmvc-6.2.2.jar:6.2.2]
	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-6.2.2.jar:6.2.2]
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1088) ~[spring-webmvc-6.2.2.jar:6.2.2]
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:978) ~[spring-webmvc-6.2.2.jar:6.2.2]
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1014) ~[spring-webmvc-6.2.2.jar:6.2.2]
	at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:914) ~[spring-webmvc-6.2.2.jar:6.2.2]