[질문 내용] 안녕하세요 영한님 JPA 를 공부하다가 LazyLoading 관련해서 의문점이 생겨 질문남깁니다. 연관관계에서의 LazyLoading 은 실제 entity를 가져오는것이 아닌 프록시객체의 target이 entity와 연결되어있는것으로 알고있습니다. 그래서 Team(1) <-> Member(n) 의 관계라고 가정했을때 Member 에서의 @ManyToOne 관계에서의 LazyLoading 으로 객체를 가져오게 되면 Team은 `Team$HibernateProxy$95RMKfgq@13875` 이런 형식으로 프록시 객체를 갖고있는것을 확인했습니다. 다만 Team에서 @OneToMany 관계의 Member를 LazyLoading 호출하게되면 List<Member> 의 형식이 PersistentBag 의 객체형식을 가지고있는것까지는 이해했는데 컬렉션 내의 객체는 제가 생각했던 `Member$HibernateProxy$95RMKfgq@13875` 와 같은 프록시 객체의 형태가 아닌 `Member@13867` 과 같은 실제 객체를 가지고 있는것으로 확인했습니다. 이와 관련해서 PersistenceCollection 이나 StatefulPersistenceContext 클래스의 관련된 문서를 찾아봤지만 답을 찾지못해 여쭤봅니다ㅠㅜ 추가로 entityManagerFactory getPersistenceUnitUtil().isLoaded 메소드를 이용해서 List 객체를 조회했을땐 false 로 확인했습니다. 다만 디버그모드로 봤을때는 ManyToOne 과 다르게 실제객체형태로 보이네요ㅠㅜ 디버그모드로 확인시 값을조회해야해서 의도치않게 추가쿼리가 발생되는것은 인지하고있지만 이 케이스는 이해가 되질 않네요 ㅎㅎ
학습하는 분들께 도움이 되고, 더 좋은 답변을 드릴 수 있도록 질문전에 다음을 꼭 확인해주세요. 1. 강의 내용과 관련된 질문을 남겨주세요. 2. 인프런의 질문 게시판과 자주 하는 질문(링크)을 먼저 확인해주세요. (자주 하는 질문 링크: https://bit.ly/3fX6ygx) 3. 질문 잘하기 메뉴얼(링크)을 먼저 읽어주세요. (질문 잘하기 메뉴얼 링크: https://bit.ly/2UfeqCG) 질문 시에는 위 내용은 삭제하고 다음 내용을 남겨주세요. ========================================= [질문 템플릿] 1. 강의 내용과 관련된 질문인가요? (예/아니오) 2. 인프런의 질문 게시판과 자주 하는 질문에 없는 내용인가요? (예/아니오) 3. 질문 잘하기 메뉴얼을 읽어보셨나요? (예/아니오) [질문 내용] "C:\Program Files\Java\jdk-12\bin\java.exe" -ea -Didea.test.cyclic.buffer.size=1048576 "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA 2021.3.3\lib\idea_rt.jar=8216:C:\Program Files\JetBrains\IntelliJ IDEA 2021.3.3\bin" -Dfile.encoding=UTF-8 -classpath "C:\Users\tjfgh\.m2\repository\org\junit\platform\junit-platform-launcher\1.8.2\junit-platform-launcher-1.8.2.jar;C:\Users\tjfgh\.m2\repository\org\junit\platform\junit-platform-engine\1.8.2\junit-platform-engine-1.8.2.jar;C:\Users\tjfgh\.m2\repository\org\opentest4j\opentest4j\1.2.0\opentest4j-1.2.0.jar;C:\Users\tjfgh\.m2\repository\org\junit\platform\junit-platform-commons\1.8.2\junit-platform-commons-1.8.2.jar;C:\Users\tjfgh\.m2\repository\org\apiguardian\apiguardian-api\1.1.2\apiguardian-api-1.1.2.jar;C:\Program Files\JetBrains\IntelliJ IDEA 2021.3.3\lib\idea_rt.jar;C:\Program Files\JetBrains\IntelliJ IDEA 2021.3.3\plugins\junit\lib\junit5-rt.jar;C:\Program Files\JetBrains\IntelliJ IDEA 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com.intellij.rt.junit.JUnitStarter -ideVersion5 -junit5 hello.hellospring.service.MemberServiceIntegrationTest 14:44:52.776 [main] DEBUG org.springframework.test.context.BootstrapUtils - Instantiating CacheAwareContextLoaderDelegate from class [org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate] 14:44:52.804 [main] DEBUG org.springframework.test.context.BootstrapUtils - Instantiating BootstrapContext using constructor [public org.springframework.test.context.support.DefaultBootstrapContext(java.lang.Class,org.springframework.test.context.CacheAwareContextLoaderDelegate)] 14:44:52.880 [main] DEBUG org.springframework.test.context.BootstrapUtils - Instantiating TestContextBootstrapper for test class [hello.hellospring.service.MemberServiceIntegrationTest] from class [org.springframework.boot.test.context.SpringBootTestContextBootstrapper] 14:44:52.910 [main] INFO org.springframework.boot.test.context.SpringBootTestContextBootstrapper - Neither @ContextConfiguration nor @ContextHierarchy found for test class [hello.hellospring.service.MemberServiceIntegrationTest], using SpringBootContextLoader 14:44:52.922 [main] DEBUG org.springframework.test.context.support.AbstractContextLoader - Did not detect default resource location for test class [hello.hellospring.service.MemberServiceIntegrationTest]: class path resource [hello/hellospring/service/MemberServiceIntegrationTest-context.xml] does not exist 14:44:52.924 [main] DEBUG org.springframework.test.context.support.AbstractContextLoader - Did not detect default resource location for test class [hello.hellospring.service.MemberServiceIntegrationTest]: class path resource [hello/hellospring/service/MemberServiceIntegrationTestContext.groovy] does not exist 14:44:52.924 [main] INFO org.springframework.test.context.support.AbstractContextLoader - Could not detect default resource locations for test class [hello.hellospring.service.MemberServiceIntegrationTest]: no resource found for suffixes {-context.xml, Context.groovy}. 14:44:52.926 [main] INFO org.springframework.test.context.support.AnnotationConfigContextLoaderUtils - Could not detect default configuration classes for test class [hello.hellospring.service.MemberServiceIntegrationTest]: MemberServiceIntegrationTest does not declare any static, non-private, non-final, nested classes annotated with @Configuration. 14:44:53.041 [main] DEBUG org.springframework.test.context.support.ActiveProfilesUtils - Could not find an 'annotation declaring class' for annotation type [org.springframework.test.context.ActiveProfiles] and class [hello.hellospring.service.MemberServiceIntegrationTest] 14:44:53.186 [main] DEBUG org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider - Identified candidate component class: file [C:\Users\tjfgh\Desktop\spring\hello-spring\out\production\classes\hello\hellospring\HelloSpringApplication.class] 14:44:53.195 [main] INFO org.springframework.boot.test.context.SpringBootTestContextBootstrapper - Found @SpringBootConfiguration hello.hellospring.HelloSpringApplication for test class hello.hellospring.service.MemberServiceIntegrationTest 14:44:53.469 [main] DEBUG org.springframework.boot.test.context.SpringBootTestContextBootstrapper - @TestExecutionListeners is not present for class [hello.hellospring.service.MemberServiceIntegrationTest]: using defaults. 14:44:53.470 [main] INFO org.springframework.boot.test.context.SpringBootTestContextBootstrapper - Loaded default TestExecutionListener class names from location [META-INF/spring.factories]: [org.springframework.boot.test.autoconfigure.restdocs.RestDocsTestExecutionListener, org.springframework.boot.test.autoconfigure.web.client.MockRestServiceServerResetTestExecutionListener, org.springframework.boot.test.autoconfigure.web.servlet.MockMvcPrintOnlyOnFailureTestExecutionListener, org.springframework.boot.test.autoconfigure.web.servlet.WebDriverTestExecutionListener, org.springframework.boot.test.autoconfigure.webservices.client.MockWebServiceServerTestExecutionListener, org.springframework.boot.test.mock.mockito.MockitoTestExecutionListener, org.springframework.boot.test.mock.mockito.ResetMocksTestExecutionListener, org.springframework.test.context.web.ServletTestExecutionListener, org.springframework.test.context.support.DirtiesContextBeforeModesTestExecutionListener, org.springframework.test.context.event.ApplicationEventsTestExecutionListener, org.springframework.test.context.support.DependencyInjectionTestExecutionListener, org.springframework.test.context.support.DirtiesContextTestExecutionListener, org.springframework.test.context.transaction.TransactionalTestExecutionListener, org.springframework.test.context.jdbc.SqlScriptsTestExecutionListener, org.springframework.test.context.event.EventPublishingTestExecutionListener] 14:44:53.514 [main] INFO org.springframework.boot.test.context.SpringBootTestContextBootstrapper - Using TestExecutionListeners: [org.springframework.test.context.web.ServletTestExecutionListener@1e8b7643, org.springframework.test.context.support.DirtiesContextBeforeModesTestExecutionListener@51549490, org.springframework.test.context.event.ApplicationEventsTestExecutionListener@71e9ebae, org.springframework.boot.test.mock.mockito.MockitoTestExecutionListener@73d983ea, org.springframework.boot.test.autoconfigure.SpringBootDependencyInjectionTestExecutionListener@36a5cabc, org.springframework.test.context.support.DirtiesContextTestExecutionListener@432038ec, org.springframework.test.context.transaction.TransactionalTestExecutionListener@7daa0fbd, org.springframework.test.context.jdbc.SqlScriptsTestExecutionListener@42530531, org.springframework.test.context.event.EventPublishingTestExecutionListener@5a3bc7ed, org.springframework.boot.test.autoconfigure.restdocs.RestDocsTestExecutionListener@181e731e, org.springframework.boot.test.autoconfigure.web.client.MockRestServiceServerResetTestExecutionListener@35645047, org.springframework.boot.test.autoconfigure.web.servlet.MockMvcPrintOnlyOnFailureTestExecutionListener@6f44a157, org.springframework.boot.test.autoconfigure.web.servlet.WebDriverTestExecutionListener@6bc407fd, org.springframework.boot.test.autoconfigure.webservices.client.MockWebServiceServerTestExecutionListener@291f18, org.springframework.boot.test.mock.mockito.ResetMocksTestExecutionListener@17d88132] 14:44:53.524 [main] DEBUG org.springframework.test.context.support.AbstractDirtiesContextTestExecutionListener - Before test class: context [DefaultTestContext@c7ba306 testClass = MemberServiceIntegrationTest, testInstance = [null], testMethod = [null], testException = [null], mergedContextConfiguration = [WebMergedContextConfiguration@4ff8d125 testClass = MemberServiceIntegrationTest, locations = '{}', classes = '{class hello.hellospring.HelloSpringApplication}', contextInitializerClasses = '[]', activeProfiles = '{}', propertySourceLocations = '{}', propertySourceProperties = '{org.springframework.boot.test.context.SpringBootTestContextBootstrapper=true}', contextCustomizers = set[org.springframework.boot.test.autoconfigure.actuate.metrics.MetricsExportContextCustomizerFactory$DisableMetricExportContextCustomizer@29e495ff, org.springframework.boot.test.autoconfigure.properties.PropertyMappingContextCustomizer@0, org.springframework.boot.test.autoconfigure.web.servlet.WebDriverContextCustomizerFactory$Customizer@15bbf42f, org.springframework.boot.test.context.filter.ExcludeFilterContextCustomizer@6a84a97d, org.springframework.boot.test.json.DuplicateJsonObjectContextCustomizerFactory$DuplicateJsonObjectContextCustomizer@223aa2f7, org.springframework.boot.test.mock.mockito.MockitoContextCustomizer@0, org.springframework.boot.test.web.client.TestRestTemplateContextCustomizer@4d02f94e, org.springframework.boot.test.context.SpringBootTestArgs@1, org.springframework.boot.test.context.SpringBootTestWebEnvironment@7225790e], resourceBasePath = 'src/main/webapp', contextLoader = 'org.springframework.boot.test.context.SpringBootContextLoader', parent = [null]], attributes = map['org.springframework.test.context.web.ServletTestExecutionListener.activateListener' -> true]], class annotated with @DirtiesContext [false] with mode [null]. . ____ _ __ _ _ /\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \ ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \ \\/ ___)| |_)| | | | | || (_| | ) ) ) ) ' |____| .__|_| |_|_| |_\__, | / / / / =========|_|==============|___/=/_/_/_/ :: Spring Boot :: (v2.6.5) 2022-04-10 14:44:54.280 INFO 26660 --- [ main] h.h.s.MemberServiceIntegrationTest : Starting MemberServiceIntegrationTest using Java 12 on DESKTOP-U5FU35V with PID 26660 (started by tjfgh in C:\Users\tjfgh\Desktop\spring\hello-spring) 2022-04-10 14:44:54.282 INFO 26660 --- [ main] h.h.s.MemberServiceIntegrationTest : No active profile set, falling back to 1 default profile: "default" 2022-04-10 14:44:55.628 INFO 26660 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JPA repositories in DEFAULT mode. 2022-04-10 14:44:55.661 INFO 26660 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 17 ms. Found 0 JPA repository interfaces. 2022-04-10 14:44:56.739 INFO 26660 --- [ main] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [name: default] 2022-04-10 14:44:56.866 INFO 26660 --- [ main] org.hibernate.Version : HHH000412: Hibernate ORM core version 5.6.7.Final 2022-04-10 14:44:57.210 INFO 26660 --- [ main] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {5.1.2.Final} 2022-04-10 14:44:58.355 INFO 26660 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting... 2022-04-10 14:44:58.468 INFO 26660 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed. 2022-04-10 14:44:58.523 INFO 26660 --- [ main] org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.H2Dialect 2022-04-10 14:44:59.507 INFO 26660 --- [ main] o.h.e.t.j.p.i.JtaPlatformInitiator : HHH000490: Using JtaPlatform implementation: [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform] 2022-04-10 14:44:59.524 INFO 26660 --- [ main] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default' 2022-04-10 14:45:00.245 WARN 26660 --- [ main] JpaBaseConfiguration$JpaWebConfiguration : spring.jpa.open-in-view is enabled by default. Therefore, database queries may be performed during view rendering. Explicitly configure spring.jpa.open-in-view to disable this warning 2022-04-10 14:45:00.930 INFO 26660 --- [ main] o.s.b.a.w.s.WelcomePageHandlerMapping : Adding welcome page: class path resource [static/index.html] 2022-04-10 14:45:01.624 INFO 26660 --- [ main] h.h.s.MemberServiceIntegrationTest : Started MemberServiceIntegrationTest in 8.01 seconds (JVM running for 10.33) 2022-04-10 14:45:01.812 INFO 26660 --- [ main] o.s.t.c.transaction.TransactionContext : Began transaction (1) for test context [DefaultTestContext@c7ba306 testClass = MemberServiceIntegrationTest, testInstance = hello.hellospring.service.MemberServiceIntegrationTest@5cf3a7f9, testMethod = 중복_회원_예외@MemberServiceIntegrationTest, testException = [null], mergedContextConfiguration = [WebMergedContextConfiguration@4ff8d125 testClass = MemberServiceIntegrationTest, locations = '{}', classes = '{class hello.hellospring.HelloSpringApplication}', contextInitializerClasses = '[]', activeProfiles = '{}', propertySourceLocations = '{}', propertySourceProperties = '{org.springframework.boot.test.context.SpringBootTestContextBootstrapper=true}', contextCustomizers = set[org.springframework.boot.test.autoconfigure.actuate.metrics.MetricsExportContextCustomizerFactory$DisableMetricExportContextCustomizer@29e495ff, org.springframework.boot.test.autoconfigure.properties.PropertyMappingContextCustomizer@0, org.springframework.boot.test.autoconfigure.web.servlet.WebDriverContextCustomizerFactory$Customizer@15bbf42f, org.springframework.boot.test.context.filter.ExcludeFilterContextCustomizer@6a84a97d, org.springframework.boot.test.json.DuplicateJsonObjectContextCustomizerFactory$DuplicateJsonObjectContextCustomizer@223aa2f7, org.springframework.boot.test.mock.mockito.MockitoContextCustomizer@0, org.springframework.boot.test.web.client.TestRestTemplateContextCustomizer@4d02f94e, org.springframework.boot.test.context.SpringBootTestArgs@1, org.springframework.boot.test.context.SpringBootTestWebEnvironment@7225790e], resourceBasePath = 'src/main/webapp', contextLoader = 'org.springframework.boot.test.context.SpringBootContextLoader', parent = [null]], attributes = map['org.springframework.test.context.web.ServletTestExecutionListener.activateListener' -> true, 'org.springframework.test.context.web.ServletTestExecutionListener.populatedRequestContextHolder' -> true, 'org.springframework.test.context.web.ServletTestExecutionListener.resetRequestContextHolder' -> true, 'org.springframework.test.context.event.ApplicationEventsTestExecutionListener.recordApplicationEvents' -> false]]; transaction manager [org.springframework.orm.jpa.JpaTransactionManager@621a387f]; rollback [true] Hibernate: select member0_.id as id1_0_, member0_.name as name2_0_ from member member0_ where member0_.name=? 2022-04-10 14:45:02.400 INFO 26660 --- [ main] o.s.t.c.transaction.TransactionContext : Rolled back transaction for test: [DefaultTestContext@c7ba306 testClass = MemberServiceIntegrationTest, testInstance = hello.hellospring.service.MemberServiceIntegrationTest@5cf3a7f9, testMethod = 중복_회원_예외@MemberServiceIntegrationTest, testException = java.lang.IllegalStateException: 이미 존재하는 회원입니다., mergedContextConfiguration = [WebMergedContextConfiguration@4ff8d125 testClass = MemberServiceIntegrationTest, locations = '{}', classes = '{class hello.hellospring.HelloSpringApplication}', contextInitializerClasses = '[]', activeProfiles = '{}', propertySourceLocations = '{}', propertySourceProperties = '{org.springframework.boot.test.context.SpringBootTestContextBootstrapper=true}', contextCustomizers = set[org.springframework.boot.test.autoconfigure.actuate.metrics.MetricsExportContextCustomizerFactory$DisableMetricExportContextCustomizer@29e495ff, org.springframework.boot.test.autoconfigure.properties.PropertyMappingContextCustomizer@0, org.springframework.boot.test.autoconfigure.web.servlet.WebDriverContextCustomizerFactory$Customizer@15bbf42f, org.springframework.boot.test.context.filter.ExcludeFilterContextCustomizer@6a84a97d, org.springframework.boot.test.json.DuplicateJsonObjectContextCustomizerFactory$DuplicateJsonObjectContextCustomizer@223aa2f7, org.springframework.boot.test.mock.mockito.MockitoContextCustomizer@0, org.springframework.boot.test.web.client.TestRestTemplateContextCustomizer@4d02f94e, org.springframework.boot.test.context.SpringBootTestArgs@1, org.springframework.boot.test.context.SpringBootTestWebEnvironment@7225790e], resourceBasePath = 'src/main/webapp', contextLoader = 'org.springframework.boot.test.context.SpringBootContextLoader', parent = [null]], attributes = map['org.springframework.test.context.web.ServletTestExecutionListener.activateListener' -> true, 'org.springframework.test.context.web.ServletTestExecutionListener.populatedRequestContextHolder' -> true, 'org.springframework.test.context.web.ServletTestExecutionListener.resetRequestContextHolder' -> true, 'org.springframework.test.context.event.ApplicationEventsTestExecutionListener.recordApplicationEvents' -> false]] java.lang.IllegalStateException: 이미 존재하는 회원입니다. at hello.hellospring.service.MemberService.lambda$validateDuplicateMember$0(MemberService.java:31) at java.base/java.util.Optional.ifPresent(Optional.java:183) at hello.hellospring.service.MemberService.validateDuplicateMember(MemberService.java:30) at hello.hellospring.service.MemberService.join(MemberService.java:24) at hello.hellospring.service.MemberService$$FastClassBySpringCGLIB$$530c61b7.invoke(<generated>) at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:783) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:753) at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:123) at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:388) at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:119) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:753) at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:698) at hello.hellospring.service.MemberService$$EnhancerBySpringCGLIB$$4067b1ff.join(<generated>) at hello.hellospring.service.MemberServiceIntegrationTest.중복_회원_예외(MemberServiceIntegrationTest.java:41) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:567) at org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:725) at org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60) at org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:131) at org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:149) at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestableMethod(TimeoutExtension.java:140) at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestMethod(TimeoutExtension.java:84) at org.junit.jupiter.engine.execution.ExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(ExecutableInvoker.java:115) at org.junit.jupiter.engine.execution.ExecutableInvoker.lambda$invoke$0(ExecutableInvoker.java:105) at org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:106) at org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:64) at org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:45) at org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:37) at org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:104) at org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:98) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$7(TestMethodTestDescriptor.java:214) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:210) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:135) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:66) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:151) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) at java.base/java.util.ArrayList.forEach(ArrayList.java:1540) at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) at java.base/java.util.ArrayList.forEach(ArrayList.java:1540) at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35) at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57) at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:107) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:88) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:54) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:67) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:52) at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114) at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86) at org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86) at org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:53) at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:71) at com.intellij.rt.junit.IdeaTestRunner$Repeater$1.execute(IdeaTestRunner.java:38) at com.intellij.rt.execution.junit.TestsRepeater.repeat(TestsRepeater.java:11) at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:35) at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:235) at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:54) 2022-04-10 14:45:02.424 INFO 26660 --- [ main] o.s.t.c.transaction.TransactionContext : Began transaction (1) for test context [DefaultTestContext@c7ba306 testClass = MemberServiceIntegrationTest, testInstance = hello.hellospring.service.MemberServiceIntegrationTest@107ebdad, testMethod = 회원가입@MemberServiceIntegrationTest, testException = [null], mergedContextConfiguration = [WebMergedContextConfiguration@4ff8d125 testClass = MemberServiceIntegrationTest, locations = '{}', classes = '{class hello.hellospring.HelloSpringApplication}', contextInitializerClasses = '[]', activeProfiles = '{}', propertySourceLocations = '{}', propertySourceProperties = '{org.springframework.boot.test.context.SpringBootTestContextBootstrapper=true}', contextCustomizers = set[org.springframework.boot.test.autoconfigure.actuate.metrics.MetricsExportContextCustomizerFactory$DisableMetricExportContextCustomizer@29e495ff, org.springframework.boot.test.autoconfigure.properties.PropertyMappingContextCustomizer@0, org.springframework.boot.test.autoconfigure.web.servlet.WebDriverContextCustomizerFactory$Customizer@15bbf42f, org.springframework.boot.test.context.filter.ExcludeFilterContextCustomizer@6a84a97d, org.springframework.boot.test.json.DuplicateJsonObjectContextCustomizerFactory$DuplicateJsonObjectContextCustomizer@223aa2f7, org.springframework.boot.test.mock.mockito.MockitoContextCustomizer@0, org.springframework.boot.test.web.client.TestRestTemplateContextCustomizer@4d02f94e, org.springframework.boot.test.context.SpringBootTestArgs@1, org.springframework.boot.test.context.SpringBootTestWebEnvironment@7225790e], resourceBasePath = 'src/main/webapp', contextLoader = 'org.springframework.boot.test.context.SpringBootContextLoader', parent = [null]], attributes = map['org.springframework.test.context.web.ServletTestExecutionListener.activateListener' -> true, 'org.springframework.test.context.web.ServletTestExecutionListener.populatedRequestContextHolder' -> true, 'org.springframework.test.context.web.ServletTestExecutionListener.resetRequestContextHolder' -> true, 'org.springframework.test.context.event.ApplicationEventsTestExecutionListener.recordApplicationEvents' -> false]]; transaction manager [org.springframework.orm.jpa.JpaTransactionManager@621a387f]; rollback [true] Hibernate: select member0_.id as id1_0_, member0_.name as name2_0_ from member member0_ where member0_.name=? Hibernate: call next value for hibernate_sequence 2022-04-10 14:45:02.435 WARN 26660 --- [ main] o.h.engine.jdbc.spi.SqlExceptionHelper : SQL Error: 90036, SQLState: 90036 2022-04-10 14:45:02.436 ERROR 26660 --- [ main] o.h.engine.jdbc.spi.SqlExceptionHelper : Sequence "HIBERNATE_SEQUENCE" not found; SQL statement: call next value for hibernate_sequence [90036-200] 2022-04-10 14:45:02.447 INFO 26660 --- [ main] o.s.t.c.transaction.TransactionContext : Rolled back transaction for test: [DefaultTestContext@c7ba306 testClass = MemberServiceIntegrationTest, testInstance = hello.hellospring.service.MemberServiceIntegrationTest@107ebdad, testMethod = 회원가입@MemberServiceIntegrationTest, testException = javax.persistence.PersistenceException: org.hibernate.exception.SQLGrammarException: could not prepare statement, mergedContextConfiguration = [WebMergedContextConfiguration@4ff8d125 testClass = MemberServiceIntegrationTest, locations = '{}', classes = '{class hello.hellospring.HelloSpringApplication}', contextInitializerClasses = '[]', activeProfiles = '{}', propertySourceLocations = '{}', propertySourceProperties = '{org.springframework.boot.test.context.SpringBootTestContextBootstrapper=true}', contextCustomizers = set[org.springframework.boot.test.autoconfigure.actuate.metrics.MetricsExportContextCustomizerFactory$DisableMetricExportContextCustomizer@29e495ff, org.springframework.boot.test.autoconfigure.properties.PropertyMappingContextCustomizer@0, org.springframework.boot.test.autoconfigure.web.servlet.WebDriverContextCustomizerFactory$Customizer@15bbf42f, org.springframework.boot.test.context.filter.ExcludeFilterContextCustomizer@6a84a97d, org.springframework.boot.test.json.DuplicateJsonObjectContextCustomizerFactory$DuplicateJsonObjectContextCustomizer@223aa2f7, org.springframework.boot.test.mock.mockito.MockitoContextCustomizer@0, org.springframework.boot.test.web.client.TestRestTemplateContextCustomizer@4d02f94e, org.springframework.boot.test.context.SpringBootTestArgs@1, org.springframework.boot.test.context.SpringBootTestWebEnvironment@7225790e], resourceBasePath = 'src/main/webapp', contextLoader = 'org.springframework.boot.test.context.SpringBootContextLoader', parent = [null]], attributes = map['org.springframework.test.context.web.ServletTestExecutionListener.activateListener' -> true, 'org.springframework.test.context.web.ServletTestExecutionListener.populatedRequestContextHolder' -> true, 'org.springframework.test.context.web.ServletTestExecutionListener.resetRequestContextHolder' -> true, 'org.springframework.test.context.event.ApplicationEventsTestExecutionListener.recordApplicationEvents' -> false]] javax.persistence.PersistenceException: org.hibernate.exception.SQLGrammarException: could not prepare statement at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:154) at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:181) at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:188) at org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:762) at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:742) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:567) at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:311) at com.sun.proxy.$Proxy90.persist(Unknown Source) at hello.hellospring.repository.JpaMemberRepository.save(JpaMemberRepository.java:17) at hello.hellospring.service.MemberService.join(MemberService.java:25) at hello.hellospring.service.MemberService$$FastClassBySpringCGLIB$$530c61b7.invoke(<generated>) at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:783) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:753) at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:123) at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:388) at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:119) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:753) at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:698) at hello.hellospring.service.MemberService$$EnhancerBySpringCGLIB$$4067b1ff.join(<generated>) at hello.hellospring.service.MemberServiceIntegrationTest.회원가입(MemberServiceIntegrationTest.java:28) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:567) at org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:725) at org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60) at org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:131) at org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:149) at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestableMethod(TimeoutExtension.java:140) at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestMethod(TimeoutExtension.java:84) at org.junit.jupiter.engine.execution.ExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(ExecutableInvoker.java:115) at org.junit.jupiter.engine.execution.ExecutableInvoker.lambda$invoke$0(ExecutableInvoker.java:105) at org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:106) at org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:64) at org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:45) at org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:37) at org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:104) at org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:98) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$7(TestMethodTestDescriptor.java:214) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:210) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:135) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:66) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:151) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) at java.base/java.util.ArrayList.forEach(ArrayList.java:1540) at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) at java.base/java.util.ArrayList.forEach(ArrayList.java:1540) at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35) at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57) at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:107) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:88) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:54) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:67) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:52) at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114) at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86) at org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86) at org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:53) at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:71) at com.intellij.rt.junit.IdeaTestRunner$Repeater$1.execute(IdeaTestRunner.java:38) at com.intellij.rt.execution.junit.TestsRepeater.repeat(TestsRepeater.java:11) at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:35) at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:235) at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:54) Caused by: org.hibernate.exception.SQLGrammarException: could not prepare statement at org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:63) at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:37) at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:113) at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.prepareStatement(StatementPreparerImpl.java:186) at org.hibernate.engine.jdbc.internal.StatementPreparerImpl.prepareStatement(StatementPreparerImpl.java:75) at org.hibernate.id.enhanced.SequenceStructure$1.getNextValue(SequenceStructure.java:105) at org.hibernate.id.enhanced.NoopOptimizer.generate(NoopOptimizer.java:40) at org.hibernate.id.enhanced.SequenceStyleGenerator.generate(SequenceStyleGenerator.java:534) at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:115) at org.hibernate.event.internal.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:185) at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:128) at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:55) at org.hibernate.event.service.internal.EventListenerGroupImpl.fireEventOnEachListener(EventListenerGroupImpl.java:107) at org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:756) ... 91 more Caused by: org.h2.jdbc.JdbcSQLSyntaxErrorException: Sequence "HIBERNATE_SEQUENCE" not found; SQL statement: call next value for hibernate_sequence [90036-200] at org.h2.message.DbException.getJdbcSQLException(DbException.java:576) at org.h2.message.DbException.getJdbcSQLException(DbException.java:429) at org.h2.message.DbException.get(DbException.java:205) at org.h2.message.DbException.get(DbException.java:181) at org.h2.command.Parser.readSequence(Parser.java:7678) at org.h2.command.Parser.readTermWithIdentifier(Parser.java:4593) at org.h2.command.Parser.readTerm(Parser.java:4311) at org.h2.command.Parser.readFactor(Parser.java:3343) at org.h2.command.Parser.readSum(Parser.java:3330) at org.h2.command.Parser.readConcat(Parser.java:3305) at org.h2.command.Parser.readCondition(Parser.java:3108) at org.h2.command.Parser.readExpression(Parser.java:3059) at org.h2.command.Parser.parseCall(Parser.java:6480) at org.h2.command.Parser.parsePrepared(Parser.java:905) at org.h2.command.Parser.parse(Parser.java:843) at org.h2.command.Parser.parse(Parser.java:815) at org.h2.command.Parser.prepareCommand(Parser.java:738) at org.h2.engine.Session.prepareLocal(Session.java:657) at org.h2.server.TcpServerThread.process(TcpServerThread.java:278) at org.h2.server.TcpServerThread.run(TcpServerThread.java:183) at java.base/java.lang.Thread.run(Thread.java:833) at org.h2.message.DbException.getJdbcSQLException(DbException.java:576) at org.h2.engine.SessionRemote.done(SessionRemote.java:611) at org.h2.command.CommandRemote.prepare(CommandRemote.java:85) at org.h2.command.CommandRemote.<init>(CommandRemote.java:51) at org.h2.engine.SessionRemote.prepareCommand(SessionRemote.java:481) at org.h2.jdbc.JdbcConnection.prepareCommand(JdbcConnection.java:1235) at org.h2.jdbc.JdbcPreparedStatement.<init>(JdbcPreparedStatement.java:76) at org.h2.jdbc.JdbcConnection.prepareStatement(JdbcConnection.java:352) at com.zaxxer.hikari.pool.ProxyConnection.prepareStatement(ProxyConnection.java:337) at com.zaxxer.hikari.pool.HikariProxyConnection.prepareStatement(HikariProxyConnection.java) at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$1.doPrepare(StatementPreparerImpl.java:90) at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.prepareStatement(StatementPreparerImpl.java:176) ... 101 more 2022-04-10 14:45:02.471 INFO 26660 --- [ionShutdownHook] j.LocalContainerEntityManagerFactoryBean : Closing JPA EntityManagerFactory for persistence unit 'default' 2022-04-10 14:45:02.475 INFO 26660 --- [ionShutdownHook] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown initiated... 2022-04-10 14:45:02.497 INFO 26660 --- [ionShutdownHook] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown completed. Process finished with exit code -1 다른 질문들도 서치를 해보았고 코드도 따로 복붙했는데 대체 왜 이런 오류가 나는지 모르겠습니다 .. ㅠㅠ
안녕하세요!! 이번 문제는 강의를 보기전에 혼자서 풀어봤습니다. 저는 이문제를 2중for문으로 해결했습니다. 그리고 강의를 시청했는데 풀이 방법이 다르더군요... 그래서 갑자기 궁금해졌는데 코딩테스트문제를 풀때 언어에 내장되있는 기능들을 사용해도 되는건가요?? 아니면 하나하나 직접 만들면서 풀어야하는건가요?? 갑자기 궁금하네요.. ㅎㅎ
만약 다음과 같이 여러곳에서 image라는 테이블을 참조한다면.. 그땐 어떻게 코드를 구현해야하는건가요? 프로젝트와 이미지는 1:n관계지만 이를 일대다로도 다대일로도 구현할 수있잖아요? 1. 만약에 다대일 양방향으로 구현 2. 일대다 단방향으로 구현 >>첫번째질문 : 어느것으로 해도 상관없나요? 근데 2번 방법을 지양하라고 하셨던 것 같아요 그래서 만약 1번 방법으로 한다고 가정할게요. 이미지 테이블같은경우 어떨땐 프로젝트의 이미지가 될수있고 (그러면 게시글의 이미지는 아닐테니 게시글_id값은 null이 되겠죠) 어떨땐 게시글의 이미지가 되겠죠..? >>두번째질문 : 근데 이 이미지가 게시글의 이미지인지 프로젝트의 이미지인지가 중요할까요..? >>세번째질문 : 만약에 중요하다면 enum을 사용하여 어떤 것의 이미지인지를 반환하는 메서드를 만들어주면되는건가요/?
안녕하세요. 항상 좋은 강의 감사드립니다! SecurityContextholder 관련 질문이 있어 글을 적게 되었습니다. SecurityContext는 ThreadLocal 기반이고, 이를 전역에서 사용할 수 있도록 Static 변수인 SecurityContextHolder에 저장된다고 이해를 했습니다. (강의 내용을 참고, 혹시.. SecurityContextHolder가 Static 변수가 아니라면 정정해주시면 감사하겠습니다!) 여기서 궁금한 부분은... 멀티 쓰레딩 환경입니다. 스프링 MVC는 결국 요청마다 쓰레드가 할당되는 쓰레딩풀 환경이라 멀티 쓰레드로 동작을 하고 있는 것으로 알고 있습니다. 그렇다면 동시에 사용자로부터 인증 요청이 온다면, 동시에 SecurityContextHolder에 SecurityContext가 각각 저장된다는 것인데.. 이런 환경에서 어떻게 동작하는지 잘 이해하기가 어렵습니다. 예를 들어 동시에 인증 요청이 오게 되면, SecurityContextHolder의 동시성 문제는 어떻게 처리되는 걸까요? 항상 좋은 강의 감사드립니다 좋은 하루 되세요!
안녕하세요 선생님 강의 정말 재밌게 듣고 있습니다 다름이 아니라 Service에 join메서드에서 id(Long) 값을 반환해주고 있는데 선생님께서 앞서 질문에서 CQS라고 말씀해주셨습니다. 서비스에서는 테스트의 용이성 등등 여러 장점때문에 Id값을 반환하는게 좋다고 말씀해주셨는데 컨트롤러에서는 join 이나 혹은 다른 Command쿼리를 날리는 메서드들에서 반환값은 어떤게 좋을까요.. id를 반환해 줄 수도 있는거고 void를 반환할 수 도 있는데 어떤게 best practice 인지 궁금합니다.
두번째 테스트 케이스에서 왜 답이 3번 학생인지 이해되지 않습니다! 3번 학생은 같은 반 해본 적이 2회 뿐인데 왜 3회 해본 4번 학생이 아닌 3번 학생이 답인가요? 5 9 8 7 6 5 : 1회 5 6 7 8 9 : 1회 1 2 3 7 8 : 2회 4 5 3 4 2 : 3회 6 2 8 4 2 : 3회
안녕하세요! 강의 도중 궁금한 점이 생겨 질문드립니다. form의 입력값들을 객체에 세팅할 때 setter를 쓰는걸로 알고있습니다! 아래 코드 처럼요 < input type ="text" th :field =" *{ name } "> -> memberForm.setName(input의 입력값); 영한님이 setter를 열어두는 것은 위험하다고 하셨는데 form 태그에 들어가는 정보와 관련된 필드를 가진 객체를 사용할 때는 setter를 반드시 열어둬야 하는건가요? MemberForm의 @Setter를 지우고 실행하면 form 필드의 값이 전부 null이 찍힙니다!
강의 중 나오는 선언 태그 내 system.out.println~ 구문에서 에러가 발생합니다. page 지시어로 java.lang.* 을 추가했는데도 실행이 안되네요 ㅠㅠ 왜 이럴까요.. Type Exception Report Message JSP를 위한 클래스를 컴파일할 수 없습니다.: Description The server encountered an unexpected condition that prevented it from fulfilling the request. Exception org.apache.jasper.JasperException: JSP를 위한 클래스를 컴파일할 수 없습니다.: JSP 파일 [/jspEx.jsp]의 [22] 행에서 오류가 발생했습니다. System.out cannot be resolved to a type 19: ArrayList<String> list = new ArrayList<String>(); 20: 21: public void jspMethod() { 22: System.out.println("-- jspMethod() --"); 23: } 24: %> 25:
학습하는 분들께 도움이 되고, 더 좋은 답변을 드릴 수 있도록 질문전에 다음을 꼭 확인해주세요. 1. 강의 내용과 관련된 질문을 남겨주세요. 2. 인프런의 질문 게시판과 자주 하는 질문(링크)을 먼저 확인해주세요. (자주 하는 질문 링크: https://bit.ly/3fX6ygx) 3. 질문 잘하기 메뉴얼(링크)을 먼저 읽어주세요. (질문 잘하기 메뉴얼 링크: https://bit.ly/2UfeqCG) 질문 시에는 위 내용은 삭제하고 다음 내용을 남겨주세요. ========================================= [질문 템플릿] 1. 강의 내용과 관련된 질문인가요? (예/아니오) 2. 인프런의 질문 게시판과 자주 하는 질문에 없는 내용인가요? (예/아니오) 3. 질문 잘하기 메뉴얼을 읽어보셨나요? (예/아니오) [질문 내용] Q1. IDENTITY 전략에서만 예외적으로, persist() 호출 직후 바로 insert 쿼리가 전달되어, DB에 데이터가 저장된다고 설명해주셨는데요, 이때 DB에 저장한 직후 동시에 그 DB에 넣은 Entity를 영속성 컨텍스트의 1차 캐시에도 넣고, insert 시DB에 생성된 PK를 가져와서 영속성 컨텍스트 안에 해당 Entity를 관리하는데 사용하는게 맞을 까요 ? Q2. ppt 32p 를 보면 allocaitonSize 속성 부분에서 "데이터베이스 시퀀스 값이 하나씩 증가하도록 설정되어 있으면 이 값을 반드시 1로 설정해야 한다" 라고 나와있는데요, 수업 내용과 같이 이 allocationSize 값 만큼 한번에 DB에 id를 할당하기 때문에 , DB에 할당되어야 할 id값을 1나씩 증가하도록 설정해야 하는 상황이라면, 이 값을 1로 설정해야 한다 라고 이해하였습니다. 그런데 ppt에 나온것과 같이 데이터베이스 시퀀스 값이 하나씩 증가하도록 설정해야 하는 특별한 상황이 따로 있는지 궁금합니다.
자주 쓰이고, 오타가 날법한 String 을 모아 아래 처럼 상수화 했습니다. 상수패키지 com.studyolle.core.constant.* 이후 Controller , Test 등에서 아래와 같이 사용중입니다. 질문입니다 Enum 으로 관리 하려고 했지만, 컨트롤러-핸들러 의 @GetMapping( Enum.URI.name() ) 과같은 선언도 불가능 하고, 단순 값 참조를 Enum .name() 이라던지, Enum .custom() 과 같이 덕지덕지 메서드가 붙게되어, 심플하게 하고자, Enum 은 사용하지 않았습니다. 그러나 이렇게 static final 필드 로 관리하다보면, 언젠가 양이 많아 질탠데, 이럴 경우는 또다시 나누어야 될거라 생각이 듭니다만.. 이런 일반적인 방식 보다 효과적으로 관리하는 ( Map 을 쓴다던지, 특정 패턴이라던지) 방법이 있을까요? 상수 관리는 이런 방향이 괜찮았다.. 라는 사례가 궁금합니다. 읽어주셔서 감사합니다.
