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]오랜만에 들어갔더니 db연결이안돼요 ㅠ 이거때문에 application 실행도 안 되네요.ㅠㅠ 원래 잘만 되다가 오늘 어노테이션이랑 다 막혀있길래 gradle 을 refresh 했는데 그 이후 다른 빨간줄은 해결됐는데 db연결이 안됩니다

@Test public void dynamicQueryWhereParam() { String usernameParam = null; Integer ageParam = 10; List<Member> result = queryFactory .selectFrom(member) // .where(usernameEq(usernameParam), ageEq(ageParam)) .where(allEq(usernameParam, ageParam)) .fetch(); assertThat(result.size()).isEqualTo(1); } private BooleanExpression usernameEq(String usernameParam) { if (usernameParam == null) { return Expressions.TRUE; } return member.username.eq(usernameParam); } private BooleanExpression ageEq(Integer ageParam) { if (ageParam == null) { return Expressions.TRUE; } return member.age.eq(ageParam); } private BooleanExpression allEq(String usernameParam, Integer ageParam) { return usernameEq(usernameParam).and(ageEq(ageParam)); }select m.* from member m where true and m.age = 10;위와 같이 Expressions.TRUE를 반환하게 만들면 쿼리에 true가 포함돼서 실무에서 사용하기에는 좀 그럴까요?

안녕하세요..! 입문 편 데이터베이스 생성 부분 듣고 있는데h2 다운 받아서 실행 후 연결을 계속 해도 test db가 생성 되지 않습니다.h2.bat이랑 h2w.bat으로 다 해봐도 연결이 안돼요.혹시 그냥 파일 생성을 따로 해줘야 하는 걸까요? 

  System.out.println("------------"); // 세로크기 10 x 가로크기 15 영화관 자리ㅣ String[][] seats3 = new String[10][15]; String[] eng = {"A", "B", "C", "D", "E", "F", "G", "H", "I", "J"}; for (int i = 0; i < seats3.length; i++) { //세로 for (int j = 0; j < seats3[i].length; j++) { //가로 seats3[i][j] = eng[i] + (j + 1); } }이 부분에서 혹시 i < seats3.Length; 단순히 A부터 J까지 10개라서 10이되는건가요?그리고 j < seats3[i] 는 어떤 원리로 15가 되는건지 궁금합니다.

제가 따로 구현하지 않고Spring Data JPA JpaRepository 에서 상속받은deleteById 를 사용하면먼저 select query 가 1번 나간 다음에 찾아온 Entity로 delete 메서드를 호출하는 것 같더라구요그래서 총 select, delete 쿼리가 각각 1번 총 2번 나가는 것 같은데 PK로 delete 를 하고 싶을 때,@Query로 작성하여 delete 문을 1번 나가게 하는 것과,위의 방법대로 select, delete 각각 1번 나가는 방법 중에 어떤 방법을 사용하는 것이 좋은가요 ?

while 문만 써서 해결해보고 싶어서 아래와 같이 짜 봤는데, 어떤 경우는 정답으로, 어떤 경우는 오답으로 나옵니다..이 코드에 무슨 오류가 있는지 알고 싶은데 아무리 들여다봐도 어디가 문제인지 모르겠어서 강사님께 질문 드립니다ㅠimport java.util.Scanner; public class Main { public int solution(int n, int m, int[] arr){ int sum = 0; int cnt = 0; int p1 = 0; int p2 = 0; while(true){ if(p1 == n-1 && sum < m){ break; } else { if(sum < m){ sum += arr[p1++]; if(sum == m){ cnt++; sum -= arr[p2++]; } }else if(sum > m){ sum -= arr[p2++]; if(sum == m){ cnt++; sum -= arr[p2++]; } } } } return cnt; } public static void main(String[] args){ Main t = new Main(); Scanner in = new Scanner(System.in); int n = in.nextInt(); int m = in.nextInt(); int[] arr = new int[n]; for(int i = 0; i < n; i++){ arr[i] = in.nextInt(); } in.close(); System.out.print(t.solution(n, m, arr)); } }

똑같이 강의따라하다가 뭐가 잘못된건지 몰라서 물어봐요 ㅠㅠ

[상황 예시]한정판 상품 A의 재고 수량 : 2000개 (1인당 1개씩만 구매 가능)[구매 로직]1. 데이터 베이스에서 상품 A를 조회2. A의 재고 수량 확인3. 재고 수량이 0보다 큰 경우 재고를 1 감소시키고 구매 완료 처리[테스트]2000개 스레드 생성해서 동시에 구매 요청 후 잔여 재고 확인테스트 코드에서 2000개의 스레드가 동작하기 전 System.nanoTime() 과 모두 동작이 끝난 후 System.nanoTime() 을 통해 처리 시간을 계산하여 비교해보고 있습니다.테스트 환경 - h2 database 위와 같은 방식으로 현재 프로젝트를 구현 중에 있습니다. 한정판 상품 구매의 특성 상 충돌이 잦을 것이라고 생각해서 다음과 같은 후보군으로 실험을 하고 있습니다.1. 비관적 락2. Lettuce 를 이용한 분산락3. Redisson 을 이용한 분산락제가 알아본 바나 다른 사례들을 봤을 때 Redis를 거친다고 해서 DB에서 제공해주는 락 기능을 사용하는 것과 속도면에서 차이가 거의 없는 것으로 알고 있었는데 실제 실험 결과가 다음과 같습니다.1. 비관적 락 - 평균 6초2. Lettuce - 평균 34초3. Redisson - 평균 12초Redis를 이용한 분산락 구현 코드는 강사님의 강의를 따라했는데 혹시 이런 결과가 나오는 이유가 무엇일까요?제 추측으로는 Lettuce 를 이용하는 방식에서는 2000개의 스레드가 반복적으로 락 획득 요청을 보냄에 따라 Redis에 부하가 심해서 속도가 느려질 수 있을 것 같은데 Redisson 을 이용한 방식은 왜 느린지 전혀 모르겠습니다.

Starting Gradle Daemon...Gradle Daemon started in 6 s 240 msFAILURE: Build failed with an exception.* What went wrong:Gradle could not start your build.> Cannot create service of type DependencyLockingHandler using method DefaultDependencyManagementServices$DependencyResolutionScopeServices.createDependencyLockingHandler() as there is a problem with parameter #2 of type ConfigurationContainerInternal.> Cannot create service of type ConfigurationContainerInternal using method DefaultDependencyManagementServices$DependencyResolutionScopeServices.createConfigurationContainer() as there is a problem with parameter #13 of type DefaultConfigurationFactory.> Cannot create service of type DefaultConfigurationFactory using DefaultConfigurationFactory constructor as there is a problem with parameter #2 of type ConfigurationResolver.> Cannot create service of type ConfigurationResolver using method DefaultDependencyManagementServices$DependencyResolutionScopeServices.createDependencyResolver() as there is a problem with parameter #1 of type ArtifactDependencyResolver.> Cannot create service of type ArtifactDependencyResolver using method DependencyManagementBuildScopeServices.createArtifactDependencyResolver() as there is a problem with parameter #4 of type List<ResolverProviderFactory>.> Could not create service of type VersionControlRepositoryConnectionFactory using VersionControlBuildSessionServices.createVersionControlSystemFactory().> Failed to create parent directory 'D:\Study\hello-spring\.gradle' when creating directory 'D:\Study\hello-spring\.gradle\vcs-1'* Try:> Run with --info or --debug option to get more log output.> Run with --scan to get full insights.* Exception is:org.gradle.initialization.exception.InitializationException: Gradle could not start your build.at org.gradle.initialization.exception.DefaultExceptionAnalyser.collectFailures(DefaultExceptionAnalyser.java:65)at org.gradle.initialization.exception.MultipleBuildFailuresExceptionAnalyser.transform(MultipleBuildFailuresExceptionAnalyser.java:55)at org.gradle.initialization.exception.StackTraceSanitizingExceptionAnalyser.transform(StackTraceSanitizingExceptionAnalyser.java:39)at org.gradle.internal.buildtree.DefaultBuildTreeFinishExecutor.finishBuildTree(DefaultBuildTreeFinishExecutor.java:54)at org.gradle.internal.buildtree.DefaultBuildTreeLifecycleController.lambda$runBuild$5(DefaultBuildTreeLifecycleController.java:118)at org.gradle.internal.model.StateTransitionController.lambda$transition$5(StateTransitionController.java:166)at org.gradle.internal.model.StateTransitionController.doTransition(StateTransitionController.java:247)at org.gradle.internal.model.StateTransitionController.lambda$transition$6(StateTransitionController.java:166)at org.gradle.internal.work.DefaultSynchronizer.withLock(DefaultSynchronizer.java:44)at org.gradle.internal.model.StateTransitionController.transition(StateTransitionController.java:166)at org.gradle.internal.buildtree.DefaultBuildTreeLifecycleController.runBuild(DefaultBuildTreeLifecycleController.java:110)at org.gradle.internal.buildtree.DefaultBuildTreeLifecycleController.fromBuildModel(DefaultBuildTreeLifecycleController.java:81)at org.gradle.tooling.internal.provider.runner.AbstractClientProvidedBuildActionRunner.runClientAction(AbstractClientProvidedBuildActionRunner.java:43)at org.gradle.tooling.internal.provider.runner.ClientProvidedPhasedActionRunner.run(ClientProvidedPhasedActionRunner.java:53)at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)at org.gradle.internal.buildtree.ProblemReportingBuildActionRunner.run(ProblemReportingBuildActionRunner.java:49)at org.gradle.launcher.exec.BuildOutcomeReportingBuildActionRunner.run(BuildOutcomeReportingBuildActionRunner.java:65)at org.gradle.tooling.internal.provider.FileSystemWatchingBuildActionRunner.run(FileSystemWatchingBuildActionRunner.java:136)at org.gradle.launcher.exec.BuildCompletionNotifyingBuildActionRunner.run(BuildCompletionNotifyingBuildActionRunner.java:41)at org.gradle.launcher.exec.RootBuildLifecycleBuildActionExecutor.lambda$execute$0(RootBuildLifecycleBuildActionExecutor.java:40)at org.gradle.composite.internal.DefaultRootBuildState.run(DefaultRootBuildState.java:122)at org.gradle.launcher.exec.RootBuildLifecycleBuildActionExecutor.execute(RootBuildLifecycleBuildActionExecutor.java:40)at org.gradle.internal.buildtree.DefaultBuildTreeContext.execute(DefaultBuildTreeContext.java:40)at org.gradle.launcher.exec.BuildTreeLifecycleBuildActionExecutor.lambda$execute$0(BuildTreeLifecycleBuildActionExecutor.java:65)at org.gradle.internal.buildtree.BuildTreeState.run(BuildTreeState.java:53)at org.gradle.launcher.exec.BuildTreeLifecycleBuildActionExecutor.execute(BuildTreeLifecycleBuildActionExecutor.java:65)at org.gradle.launcher.exec.RunAsBuildOperationBuildActionExecutor$3.call(RunAsBuildOperationBuildActionExecutor.java:61)at org.gradle.launcher.exec.RunAsBuildOperationBuildActionExecutor$3.call(RunAsBuildOperationBuildActionExecutor.java:57)at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:204)at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:199)at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:66)at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:59)at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:157)at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:59)at org.gradle.internal.operations.DefaultBuildOperationRunner.call(DefaultBuildOperationRunner.java:53)at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:73)at org.gradle.launcher.exec.RunAsBuildOperationBuildActionExecutor.execute(RunAsBuildOperationBuildActionExecutor.java:57)at org.gradle.launcher.exec.RunAsWorkerThreadBuildActionExecutor.lambda$execute$0(RunAsWorkerThreadBuildActionExecutor.java:36)at org.gradle.internal.work.DefaultWorkerLeaseService.withLocks(DefaultWorkerLeaseService.java:249)at org.gradle.internal.work.DefaultWorkerLeaseService.runAsWorkerThread(DefaultWorkerLeaseService.java:109)at org.gradle.launcher.exec.RunAsWorkerThreadBuildActionExecutor.execute(RunAsWorkerThreadBuildActionExecutor.java:36)at org.gradle.tooling.internal.provider.continuous.ContinuousBuildActionExecutor.execute(ContinuousBuildActionExecutor.java:110)at org.gradle.tooling.internal.provider.SubscribableBuildActionExecutor.execute(SubscribableBuildActionExecutor.java:64)at org.gradle.internal.session.DefaultBuildSessionContext.execute(DefaultBuildSessionContext.java:46)at org.gradle.tooling.internal.provider.BuildSessionLifecycleBuildActionExecuter$ActionImpl.apply(BuildSessionLifecycleBuildActionExecuter.java:100)at org.gradle.tooling.internal.provider.BuildSessionLifecycleBuildActionExecuter$ActionImpl.apply(BuildSessionLifecycleBuildActionExecuter.java:88)at org.gradle.internal.session.BuildSessionState.run(BuildSessionState.java:69)at org.gradle.tooling.internal.provider.BuildSessionLifecycleBuildActionExecuter.execute(BuildSessionLifecycleBuildActionExecuter.java:62)at org.gradle.tooling.internal.provider.BuildSessionLifecycleBuildActionExecuter.execute(BuildSessionLifecycleBuildActionExecuter.java:41)at org.gradle.tooling.internal.provider.StartParamsValidatingActionExecuter.execute(StartParamsValidatingActionExecuter.java:63)at org.gradle.tooling.internal.provider.StartParamsValidatingActionExecuter.execute(StartParamsValidatingActionExecuter.java:31)at org.gradle.tooling.internal.provider.SessionFailureReportingActionExecuter.execute(SessionFailureReportingActionExecuter.java:52)at org.gradle.tooling.internal.provider.SessionFailureReportingActionExecuter.execute(SessionFailureReportingActionExecuter.java:40)at org.gradle.tooling.internal.provider.SetupLoggingActionExecuter.execute(SetupLoggingActionExecuter.java:47)at org.gradle.tooling.internal.provider.SetupLoggingActionExecuter.execute(SetupLoggingActionExecuter.java:31)at org.gradle.launcher.daemon.server.exec.ExecuteBuild.doBuild(ExecuteBuild.java:65)at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:37)at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:104)at org.gradle.launcher.daemon.server.exec.WatchForDisconnection.execute(WatchForDisconnection.java:39)at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:104)at org.gradle.launcher.daemon.server.exec.ResetDeprecationLogger.execute(ResetDeprecationLogger.java:29)at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:104)at org.gradle.launcher.daemon.server.exec.RequestStopIfSingleUsedDaemon.execute(RequestStopIfSingleUsedDaemon.java:35)at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:104)at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.create(ForwardClientInput.java:78)at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.create(ForwardClientInput.java:75)at org.gradle.util.internal.Swapper.swap(Swapper.java:38)at org.gradle.launcher.daemon.server.exec.ForwardClientInput.execute(ForwardClientInput.java:75)at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:104)at org.gradle.launcher.daemon.server.exec.LogAndCheckHealth.execute(LogAndCheckHealth.java:55)at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:104)at org.gradle.launcher.daemon.server.exec.LogToClient.doBuild(LogToClient.java:63)at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:37)at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:104)at org.gradle.launcher.daemon.server.exec.EstablishBuildEnvironment.doBuild(EstablishBuildEnvironment.java:84)at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:37)at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:104)at org.gradle.launcher.daemon.server.exec.StartBuildOrRespondWithBusy$1.run(StartBuildOrRespondWithBusy.java:52)at org.gradle.launcher.daemon.server.DaemonStateCoordinator$1.run(DaemonStateCoordinator.java:297)at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:64)at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:49)Caused by: org.gradle.internal.service.ServiceCreationException: Cannot create service of type DependencyLockingHandler using method DefaultDependencyManagementServices$DependencyResolutionScopeServices.createDependencyLockingHandler() as there is a problem with parameter #2 of type ConfigurationContainerInternal.at org.gradle.internal.service.DefaultServiceRegistry$FactoryService.bind(DefaultServiceRegistry.java:803)at org.gradle.internal.service.DefaultServiceRegistry$SingletonService.prepare(DefaultServiceRegistry.java:688)at org.gradle.internal.service.DefaultServiceRegistry$SingletonService.getService(DefaultServiceRegistry.java:711)at org.gradle.internal.service.DefaultServiceRegistry$OwnServices.getService(DefaultServiceRegistry.java:444)at org.gradle.internal.service.DefaultServiceRegistry$CompositeServiceProvider.getService(DefaultServiceRegistry.java:996)at org.gradle.internal.service.DefaultServiceRegistry.find(DefaultServiceRegistry.java:1082)at org.gradle.internal.service.DefaultServiceRegistry.getService(DefaultServiceRegistry.java:323)at org.gradle.internal.service.DefaultServiceRegistry.find(DefaultServiceRegistry.java:317)at org.gradle.internal.service.DefaultServiceRegistry.get(DefaultServiceRegistry.java:302)at org.gradle.internal.service.DefaultServiceRegistry.get(DefaultServiceRegistry.java:297)at org.gradle.api.internal.artifacts.DefaultDependencyManagementServices$DefaultDependencyResolutionServices.getDependencyLockingHandler(DefaultDependencyManagementServices.java:611)at org.gradle.api.internal.initialization.DefaultScriptHandler.<init>(DefaultScriptHandler.java:83)at org.gradle.api.internal.initialization.DefaultScriptHandlerFactory.create(DefaultScriptHandlerFactory.java:61)at org.gradle.api.internal.initialization.DefaultScriptHandlerFactory.create(DefaultScriptHandlerFactory.java:55)at org.gradle.configuration.DefaultInitScriptProcessor.process(DefaultInitScriptProcessor.java:48)at org.gradle.initialization.InitScriptHandler$1.run(InitScriptHandler.java:56)at org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:29)at org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:26)at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:66)at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:59)at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:157)at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:59)at org.gradle.internal.operations.DefaultBuildOperationRunner.run(DefaultBuildOperationRunner.java:47)at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:68)at org.gradle.initialization.InitScriptHandler.executeScripts(InitScriptHandler.java:51)at org.gradle.initialization.InitScriptHandlingSettingsLoader.findAndLoadSettings(InitScriptHandlingSettingsLoader.java:33)at org.gradle.initialization.GradlePropertiesHandlingSettingsLoader.findAndLoadSettings(GradlePropertiesHandlingSettingsLoader.java:39)at org.gradle.initialization.DefaultSettingsPreparer.prepareSettings(DefaultSettingsPreparer.java:31)at org.gradle.initialization.BuildOperationFiringSettingsPreparer$LoadBuild.doLoadBuild(BuildOperationFiringSettingsPreparer.java:62)at org.gradle.initialization.BuildOperationFiringSettingsPreparer$LoadBuild.run(BuildOperationFiringSettingsPreparer.java:57)at org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:29)at org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:26)at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:66)at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:59)at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:157)at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:59)at org.gradle.internal.operations.DefaultBuildOperationRunner.run(DefaultBuildOperationRunner.java:47)at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:68)at org.gradle.initialization.BuildOperationFiringSettingsPreparer.prepareSettings(BuildOperationFiringSettingsPreparer.java:45)at org.gradle.initialization.VintageBuildModelController.lambda$prepareSettings$1(VintageBuildModelController.java:80)at org.gradle.internal.model.StateTransitionController.lambda$doTransition$12(StateTransitionController.java:236)at org.gradle.internal.model.StateTransitionController.doTransition(StateTransitionController.java:247)at org.gradle.internal.model.StateTransitionController.doTransition(StateTransitionController.java:235)at org.gradle.internal.model.StateTransitionController.lambda$transitionIfNotPreviously$10(StateTransitionController.java:210)at org.gradle.internal.work.DefaultSynchronizer.withLock(DefaultSynchronizer.java:34)at org.gradle.internal.model.StateTransitionController.transitionIfNotPreviously(StateTransitionController.java:206)at org.gradle.initialization.VintageBuildModelController.prepareSettings(VintageBuildModelController.java:80)at org.gradle.initialization.VintageBuildModelController.getLoadedSettings(VintageBuildModelController.java:57)at org.gradle.internal.model.StateTransitionController.lambda$notInState$3(StateTransitionController.java:143)at org.gradle.internal.work.DefaultSynchronizer.withLock(DefaultSynchronizer.java:44)at org.gradle.internal.model.StateTransitionController.notInState(StateTransitionController.java:139)at org.gradle.internal.build.DefaultBuildLifecycleController.loadSettings(DefaultBuildLifecycleController.java:101)at org.gradle.internal.build.AbstractBuildState.ensureProjectsLoaded(AbstractBuildState.java:98)at org.gradle.plugins.ide.internal.tooling.GradleBuildBuilder.create(GradleBuildBuilder.java:58)at org.gradle.plugins.ide.internal.tooling.GradleBuildBuilder.create(GradleBuildBuilder.java:38)at org.gradle.tooling.provider.model.internal.DefaultToolingModelBuilderRegistry$BuildScopedBuilder.build(DefaultToolingModelBuilderRegistry.java:206)at org.gradle.tooling.provider.model.internal.DefaultToolingModelBuilderRegistry$BuildOperationWrappingBuilder$1.call(DefaultToolingModelBuilderRegistry.java:337)at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:204)at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:199)at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:66)at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:59)at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:157)at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:59)at org.gradle.internal.operations.DefaultBuildOperationRunner.call(DefaultBuildOperationRunner.java:53)at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:73)at org.gradle.tooling.provider.model.internal.DefaultToolingModelBuilderRegistry$BuildOperationWrappingBuilder.build(DefaultToolingModelBuilderRegistry.java:334)at org.gradle.internal.build.DefaultBuildToolingModelController$AbstractToolingScope.getModel(DefaultBuildToolingModelController.java:82)at org.gradle.tooling.internal.provider.runner.DefaultBuildController.getModel(DefaultBuildController.java:106)at org.gradle.tooling.internal.consumer.connection.ParameterAwareBuildControllerAdapter.getModel(ParameterAwareBuildControllerAdapter.java:39)at org.gradle.tooling.internal.consumer.connection.UnparameterizedBuildController.getModel(UnparameterizedBuildController.java:113)at org.gradle.tooling.internal.consumer.connection.NestedActionAwareBuildControllerAdapter.getModel(NestedActionAwareBuildControllerAdapter.java:31)at org.gradle.tooling.internal.consumer.connection.UnparameterizedBuildController.getModel(UnparameterizedBuildController.java:76)at org.gradle.tooling.internal.consumer.connection.NestedActionAwareBuildControllerAdapter.getModel(NestedActionAwareBuildControllerAdapter.java:31)at org.gradle.tooling.internal.consumer.connection.UnparameterizedBuildController.getBuildModel(UnparameterizedBuildController.java:71)at org.gradle.tooling.internal.consumer.connection.NestedActionAwareBuildControllerAdapter.getBuildModel(NestedActionAwareBuildControllerAdapter.java:31)at org.jetbrains.plugins.gradle.model.ProjectImportAction.execute(ProjectImportAction.java:121)at org.jetbrains.plugins.gradle.model.ProjectImportAction.execute(ProjectImportAction.java:43)at org.gradle.tooling.internal.consumer.connection.InternalBuildActionAdapter.execute(InternalBuildActionAdapter.java:64)at org.gradle.tooling.internal.provider.runner.AbstractClientProvidedBuildActionRunner$ActionAdapter.runAction(AbstractClientProvidedBuildActionRunner.java:131)at org.gradle.tooling.internal.provider.runner.AbstractClientProvidedBuildActionRunner$ActionAdapter.beforeTasks(AbstractClientProvidedBuildActionRunner.java:99)at org.gradle.internal.buildtree.DefaultBuildTreeModelCreator.beforeTasks(DefaultBuildTreeModelCreator.java:52)at org.gradle.internal.buildtree.DefaultBuildTreeLifecycleController.lambda$fromBuildModel$2(DefaultBuildTreeLifecycleController.java:82)at org.gradle.internal.buildtree.DefaultBuildTreeLifecycleController.lambda$runBuild$5(DefaultBuildTreeLifecycleController.java:113)... 76 moreCaused by: org.gradle.internal.service.ServiceCreationException: Cannot create service of type ConfigurationContainerInternal using method DefaultDependencyManagementServices$DependencyResolutionScopeServices.createConfigurationContainer() as there is a problem with parameter #13 of type DefaultConfigurationFactory.at org.gradle.internal.service.DefaultServiceRegistry$FactoryService.bind(DefaultServiceRegistry.java:803)at org.gradle.internal.service.DefaultServiceRegistry$SingletonService.prepare(DefaultServiceRegistry.java:688)at org.gradle.internal.service.DefaultServiceRegistry$SingletonService.getService(DefaultServiceRegistry.java:711)at org.gradle.internal.service.DefaultServiceRegistry$OwnServices.getService(DefaultServiceRegistry.java:444)at org.gradle.internal.service.DefaultServiceRegistry$CompositeServiceProvider.getService(DefaultServiceRegistry.java:996)at org.gradle.internal.service.DefaultServiceRegistry.find(DefaultServiceRegistry.java:1082)at org.gradle.internal.service.DefaultServiceRegistry.access$1600(DefaultServiceRegistry.java:77)at org.gradle.internal.service.DefaultServiceRegistry$FactoryService.bind(DefaultServiceRegistry.java:801)... 158 moreCaused by: org.gradle.internal.service.ServiceCreationException: Cannot create service of type DefaultConfigurationFactory using DefaultConfigurationFactory constructor as there is a problem with parameter #2 of type ConfigurationResolver.at org.gradle.internal.service.DefaultServiceRegistry$FactoryService.bind(DefaultServiceRegistry.java:803)at org.gradle.internal.service.DefaultServiceRegistry$SingletonService.prepare(DefaultServiceRegistry.java:688)at org.gradle.internal.service.DefaultServiceRegistry$SingletonService.getService(DefaultServiceRegistry.java:711)at org.gradle.internal.service.DefaultServiceRegistry$OwnServices.getService(DefaultServiceRegistry.java:444)at org.gradle.internal.service.DefaultServiceRegistry$CompositeServiceProvider.getService(DefaultServiceRegistry.java:996)at org.gradle.internal.service.DefaultServiceRegistry.find(DefaultServiceRegistry.java:1082)at org.gradle.internal.service.DefaultServiceRegistry.access$1600(DefaultServiceRegistry.java:77)at org.gradle.internal.service.DefaultServiceRegistry$FactoryService.bind(DefaultServiceRegistry.java:801)... 165 moreCaused by: org.gradle.internal.service.ServiceCreationException: Cannot create service of type ConfigurationResolver using method DefaultDependencyManagementServices$DependencyResolutionScopeServices.createDependencyResolver() as there is a problem with parameter #1 of type ArtifactDependencyResolver.at org.gradle.internal.service.DefaultServiceRegistry$FactoryService.bind(DefaultServiceRegistry.java:803)at org.gradle.internal.service.DefaultServiceRegistry$SingletonService.prepare(DefaultServiceRegistry.java:688)at org.gradle.internal.service.DefaultServiceRegistry$SingletonService.getService(DefaultServiceRegistry.java:711)at org.gradle.internal.service.DefaultServiceRegistry$OwnServices.getService(DefaultServiceRegistry.java:444)at org.gradle.internal.service.DefaultServiceRegistry$CompositeServiceProvider.getService(DefaultServiceRegistry.java:996)at org.gradle.internal.service.DefaultServiceRegistry.find(DefaultServiceRegistry.java:1082)at org.gradle.internal.service.DefaultServiceRegistry.access$1600(DefaultServiceRegistry.java:77)at org.gradle.internal.service.DefaultServiceRegistry$FactoryService.bind(DefaultServiceRegistry.java:801)... 172 moreCaused by: org.gradle.internal.service.ServiceCreationException: Cannot create service of type ArtifactDependencyResolver using method DependencyManagementBuildScopeServices.createArtifactDependencyResolver() as there is a problem with parameter #4 of type List<ResolverProviderFactory>.at org.gradle.internal.service.DefaultServiceRegistry$FactoryService.bind(DefaultServiceRegistry.java:803)at org.gradle.internal.service.DefaultServiceRegistry$SingletonService.prepare(DefaultServiceRegistry.java:688)at org.gradle.internal.service.DefaultServiceRegistry$SingletonService.getService(DefaultServiceRegistry.java:711)at org.gradle.internal.service.DefaultServiceRegistry$OwnServices.getService(DefaultServiceRegistry.java:444)at org.gradle.internal.service.DefaultServiceRegistry$CompositeServiceProvider.getService(DefaultServiceRegistry.java:996)at org.gradle.internal.service.DefaultServiceRegistry$ParentServices.getService(DefaultServiceRegistry.java:1050)at org.gradle.internal.service.DefaultServiceRegistry$CompositeServiceProvider.getService(DefaultServiceRegistry.java:996)at org.gradle.internal.service.DefaultServiceRegistry.find(DefaultServiceRegistry.java:1082)at org.gradle.internal.service.DefaultServiceRegistry.access$1600(DefaultServiceRegistry.java:77)at org.gradle.internal.service.DefaultServiceRegistry$FactoryService.bind(DefaultServiceRegistry.java:801)... 179 moreCaused by: org.gradle.internal.service.ServiceCreationException: Could not create service of type VersionControlRepositoryConnectionFactory using VersionControlBuildSessionServices.createVersionControlSystemFactory().at org.gradle.internal.service.DefaultServiceRegistry$FactoryMethodService.invokeMethod(DefaultServiceRegistry.java:901)at org.gradle.internal.service.DefaultServiceRegistry$FactoryService.createServiceInstance(DefaultServiceRegistry.java:826)at org.gradle.internal.service.DefaultServiceRegistry$ManagedObjectServiceProvider.getInstance(DefaultServiceRegistry.java:611)at org.gradle.internal.service.DefaultServiceRegistry$SingletonService.get(DefaultServiceRegistry.java:674)at org.gradle.internal.service.DefaultServiceRegistry$FactoryService.assembleParameters(DefaultServiceRegistry.java:839)at org.gradle.internal.service.DefaultServiceRegistry$FactoryService.createServiceInstance(DefaultServiceRegistry.java:825)at org.gradle.internal.service.DefaultServiceRegistry$ManagedObjectServiceProvider.getInstance(DefaultServiceRegistry.java:611)at org.gradle.internal.service.DefaultServiceRegistry$SingletonService.get(DefaultServiceRegistry.java:674)at org.gradle.internal.service.DefaultServiceRegistry$FactoryService.assembleParameters(DefaultServiceRegistry.java:839)at org.gradle.internal.service.DefaultServiceRegistry$FactoryService.createServiceInstance(DefaultServiceRegistry.java:825)at org.gradle.internal.service.DefaultServiceRegistry$ManagedObjectServiceProvider.getInstance(DefaultServiceRegistry.java:611)at org.gradle.internal.service.DefaultServiceRegistry$SingletonService.get(DefaultServiceRegistry.java:674)at org.gradle.internal.service.DefaultServiceRegistry.getCollectionService(DefaultServiceRegistry.java:1129)at org.gradle.internal.service.DefaultServiceRegistry.getCollectionService(DefaultServiceRegistry.java:1111)at org.gradle.internal.service.DefaultServiceRegistry.find(DefaultServiceRegistry.java:1074)at org.gradle.internal.service.DefaultServiceRegistry.access$1600(DefaultServiceRegistry.java:77)at org.gradle.internal.service.DefaultServiceRegistry$FactoryService.bind(DefaultServiceRegistry.java:801)... 188 moreCaused by: org.gradle.api.UncheckedIOException: Failed to create parent directory 'D:\Study\hello-spring\.gradle' when creating directory 'D:\Study\hello-spring\.gradle\vcs-1'at org.gradle.util.internal.GFileUtils.mkdirs(GFileUtils.java:317)at org.gradle.cache.internal.DefaultPersistentDirectoryStore.open(DefaultPersistentDirectoryStore.java:86)at org.gradle.cache.internal.DefaultPersistentDirectoryStore.open(DefaultPersistentDirectoryStore.java:43)at org.gradle.cache.internal.DefaultCacheFactory.doOpen(DefaultCacheFactory.java:103)at org.gradle.cache.internal.DefaultCacheFactory.open(DefaultCacheFactory.java:68)at org.gradle.cache.internal.DefaultCacheRepository$PersistentCacheBuilder.open(DefaultCacheRepository.java:117)at org.gradle.vcs.internal.services.DefaultVersionControlRepositoryFactory.<init>(DefaultVersionControlRepositoryFactory.java:55)at org.gradle.vcs.internal.services.VersionControlServices$VersionControlBuildSessionServices.createVersionControlSystemFactory(VersionControlServices.java:116)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 org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:125)at org.gradle.internal.service.ReflectionBasedServiceMethod.invoke(ReflectionBasedServiceMethod.java:34)at org.gradle.internal.service.DefaultServiceRegistry$FactoryMethodService.invokeMethod(DefaultServiceRegistry.java:899)... 204 more* Get more help at https://help.gradle.orgCONFIGURE FAILED in 7sFAILURE: Build failed with an exception.* What went wrong:Could not update D:\Study\hello-spring\.gradle\7.6.1\fileChanges\last-build.bin> D:\Study\hello-spring\.gradle\7.6.1\fileChanges\last-build.bin (??d?? �Ʃ�����? ?; ��?)* Try:> Run with --info or --debug option to get more log output.> Run with --scan to get full insights.* Exception is:org.gradle.api.UncheckedIOException: Could not update D:\Study\hello-spring\.gradle\7.6.1\fileChanges\last-build.binat org.gradle.api.internal.changedetection.state.FileTimeStampInspector.updateOnFinishBuild(FileTimeStampInspector.java:74)at org.gradle.api.internal.changedetection.state.BuildSessionScopeFileTimeStampInspector.beforeComplete(BuildSessionScopeFileTimeStampInspector.java:48)at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:36)at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)at org.gradle.internal.event.DefaultListenerManager$ListenerDetails.dispatch(DefaultListenerManager.java:462)at org.gradle.internal.event.DefaultListenerManager$ListenerDetails.dispatch(DefaultListenerManager.java:444)at org.gradle.internal.event.AbstractBroadcastDispatch.dispatch(AbstractBroadcastDispatch.java:83)at org.gradle.internal.event.AbstractBroadcastDispatch.dispatch(AbstractBroadcastDispatch.java:69)at org.gradle.internal.event.DefaultListenerManager$EventBroadcast$ListenerDispatch.dispatch(DefaultListenerManager.java:433)at org.gradle.internal.event.DefaultListenerManager$EventBroadcast$ListenerDispatch.dispatch(DefaultListenerManager.java:421)at org.gradle.internal.event.AbstractBroadcastDispatch.dispatch(AbstractBroadcastDispatch.java:43)at org.gradle.internal.event.AbstractBroadcastDispatch.dispatch(AbstractBroadcastDispatch.java:66)at org.gradle.internal.event.DefaultListenerManager$EventBroadcast$ListenerDispatch.dispatch(DefaultListenerManager.java:433)at org.gradle.internal.event.DefaultListenerManager$EventBroadcast.dispatch(DefaultListenerManager.java:221)at org.gradle.internal.event.DefaultListenerManager$EventBroadcast.dispatch(DefaultListenerManager.java:192)at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:94)at com.sun.proxy.$Proxy31.beforeComplete(Unknown Source)at org.gradle.composite.internal.DefaultRootBuildState.run(DefaultRootBuildState.java:124)at org.gradle.launcher.exec.RootBuildLifecycleBuildActionExecutor.execute(RootBuildLifecycleBuildActionExecutor.java:40)at org.gradle.internal.buildtree.DefaultBuildTreeContext.execute(DefaultBuildTreeContext.java:40)at org.gradle.launcher.exec.BuildTreeLifecycleBuildActionExecutor.lambda$execute$0(BuildTreeLifecycleBuildActionExecutor.java:65)at org.gradle.internal.buildtree.BuildTreeState.run(BuildTreeState.java:53)at org.gradle.launcher.exec.BuildTreeLifecycleBuildActionExecutor.execute(BuildTreeLifecycleBuildActionExecutor.java:65)at org.gradle.launcher.exec.RunAsBuildOperationBuildActionExecutor$3.call(RunAsBuildOperationBuildActionExecutor.java:61)at org.gradle.launcher.exec.RunAsBuildOperationBuildActionExecutor$3.call(RunAsBuildOperationBuildActionExecutor.java:57)at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:204)at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:199)at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:66)at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:59)at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:157)at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:59)at org.gradle.internal.operations.DefaultBuildOperationRunner.call(DefaultBuildOperationRunner.java:53)at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:73)at org.gradle.launcher.exec.RunAsBuildOperationBuildActionExecutor.execute(RunAsBuildOperationBuildActionExecutor.java:57)at org.gradle.launcher.exec.RunAsWorkerThreadBuildActionExecutor.lambda$execute$0(RunAsWorkerThreadBuildActionExecutor.java:36)at org.gradle.internal.work.DefaultWorkerLeaseService.withLocks(DefaultWorkerLeaseService.java:249)at org.gradle.internal.work.DefaultWorkerLeaseService.runAsWorkerThread(DefaultWorkerLeaseService.java:109)at org.gradle.launcher.exec.RunAsWorkerThreadBuildActionExecutor.execute(RunAsWorkerThreadBuildActionExecutor.java:36)at org.gradle.tooling.internal.provider.continuous.ContinuousBuildActionExecutor.execute(ContinuousBuildActionExecutor.java:110)at org.gradle.tooling.internal.provider.SubscribableBuildActionExecutor.execute(SubscribableBuildActionExecutor.java:64)at org.gradle.internal.session.DefaultBuildSessionContext.execute(DefaultBuildSessionContext.java:46)at org.gradle.tooling.internal.provider.BuildSessionLifecycleBuildActionExecuter$ActionImpl.apply(BuildSessionLifecycleBuildActionExecuter.java:100)at org.gradle.tooling.internal.provider.BuildSessionLifecycleBuildActionExecuter$ActionImpl.apply(BuildSessionLifecycleBuildActionExecuter.java:88)at org.gradle.internal.session.BuildSessionState.run(BuildSessionState.java:69)at org.gradle.tooling.internal.provider.BuildSessionLifecycleBuildActionExecuter.execute(BuildSessionLifecycleBuildActionExecuter.java:62)at org.gradle.tooling.internal.provider.BuildSessionLifecycleBuildActionExecuter.execute(BuildSessionLifecycleBuildActionExecuter.java:41)at org.gradle.tooling.internal.provider.StartParamsValidatingActionExecuter.execute(StartParamsValidatingActionExecuter.java:63)at org.gradle.tooling.internal.provider.StartParamsValidatingActionExecuter.execute(StartParamsValidatingActionExecuter.java:31)at org.gradle.tooling.internal.provider.SessionFailureReportingActionExecuter.execute(SessionFailureReportingActionExecuter.java:52)at org.gradle.tooling.internal.provider.SessionFailureReportingActionExecuter.execute(SessionFailureReportingActionExecuter.java:40)at org.gradle.tooling.internal.provider.SetupLoggingActionExecuter.execute(SetupLoggingActionExecuter.java:47)at org.gradle.tooling.internal.provider.SetupLoggingActionExecuter.execute(SetupLoggingActionExecuter.java:31)at org.gradle.launcher.daemon.server.exec.ExecuteBuild.doBuild(ExecuteBuild.java:65)at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:37)at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:104)at org.gradle.launcher.daemon.server.exec.WatchForDisconnection.execute(WatchForDisconnection.java:39)at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:104)at org.gradle.launcher.daemon.server.exec.ResetDeprecationLogger.execute(ResetDeprecationLogger.java:29)at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:104)at org.gradle.launcher.daemon.server.exec.RequestStopIfSingleUsedDaemon.execute(RequestStopIfSingleUsedDaemon.java:35)at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:104)at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.create(ForwardClientInput.java:78)at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.create(ForwardClientInput.java:75)at org.gradle.util.internal.Swapper.swap(Swapper.java:38)at org.gradle.launcher.daemon.server.exec.ForwardClientInput.execute(ForwardClientInput.java:75)at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:104)at org.gradle.launcher.daemon.server.exec.LogAndCheckHealth.execute(LogAndCheckHealth.java:55)at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:104)at org.gradle.launcher.daemon.server.exec.LogToClient.doBuild(LogToClient.java:63)at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:37)at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:104)at org.gradle.launcher.daemon.server.exec.EstablishBuildEnvironment.doBuild(EstablishBuildEnvironment.java:84)at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:37)at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:104)at org.gradle.launcher.daemon.server.exec.StartBuildOrRespondWithBusy$1.run(StartBuildOrRespondWithBusy.java:52)at org.gradle.launcher.daemon.server.DaemonStateCoordinator$1.run(DaemonStateCoordinator.java:297)at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:64)at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:49)Caused by: java.io.FileNotFoundException: D:\Study\hello-spring\.gradle\7.6.1\fileChanges\last-build.bin (??d?? �Ʃ�����? ?; ��?)at org.gradle.api.internal.changedetection.state.FileTimeStampInspector.updateOnFinishBuild(FileTimeStampInspector.java:70)... 80 more* Get more help at https://help.gradle.orgBUILD FAILED in 7s이런식으로 계속 오류가나구요 자바버전도 11이고 부트 프로젝트 버전도 2.7.12 버전입니다왜안되는지 모르겠네요 ㅠㅠ 2023-05-31 오전 11시 04분 경 jdk 재설치하고 경로도 다바꿔줬는데 여전히안되네요...오후 16시 35분에 인텔리제이, jdk, 프로젝트 다 삭제하고 다시 다 깔아서 재시도했는데도 안되네요...

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]여기에 질문 내용을 남겨주세요.  package hello.hellospring.service;import hello.hellospring.domain.Member;import hello.hellospring.repository.MemoryMemberRepository;import org.junit.jupiter.api.AfterEach;import org.junit.jupiter.api.BeforeEach;import org.junit.jupiter.api.Test;import static org.assertj.core.api.Assertions.*;import static org.junit.jupiter.api.Assertions.*;import static org.junit.jupiter.api.Assertions.*;class MemberServiceTest {MemberService memberService; MemoryMemberRepository memberRepository; @BeforeEach public void beforeEach() {memberRepository = new MemoryMemberRepository(); memberService = new MemberService(memberRepository); }@AfterEach public void afterEach() {memberRepository.clearStore(); }@Test public void 회원가입() throws Exception {//Given Member member = new Member(); member.setName("hello");//When Long saveId = memberService.join(member);//Then Member findMember = memberRepository.findById(saveId).get(); assertEquals(member.getName(), findMember.getName()); }@Test public void 중복_회원_예외() throws Exception {//Given Member member1 = new Member(); member1.setName("spring"); Member member2 = new Member(); member2.setName("spring");//when memberService.join(member1); IllegalStateException e = assertThrows(IllegalStateException.class, () -> memberService.join(member2));//예외가 발생해야 한다. assertThat(e.getMessage()).isEqualTo("이미 존재하는 회원입니다."); assertThat(e.getMessage()).isEqualTo("이미 존재하는 회원입니다."); }} 이거 계속 오류나는데 왜그럴까요.org.opentest4j.AssertionFailedError: Expected java.lang.IllegalStateException to be thrown, but nothing was thrown. 이렇게 떠요  

assertThat import 안되는 문제선생님 안녕하세요. 이번에 새로 수강하고 있는 수강생입니다.프로젝트 다운 받고 실행을 시켜려고 하는데 실행이 안돼서 따로 설정해서 돌리고 있습니다.Junit5까지는 진행했지만 assertThat 코드를 호출하는 진도에서 실행이 안되고 있습니다.혹시 어떤 방법으로 해결 할 수 있을까요? 찾아도 안나오네요 ㅠㅜbuild.gradle.kts 파일입니다import org.jetbrains.kotlin.gradle.tasks.KotlinCompile plugins { id("org.springframework.boot") version "3.0.6" id("io.spring.dependency-management") version "1.1.0" id("java") id("org.jetbrains.kotlin.plugin.jpa") version "1.7.22" // id("org.jetbrains.kotlin.plugin.spring") version "1.7.22" id("org.jetbrains.kotlin.kapt") version "1.7.22" kotlin("jvm") version "1.7.22" kotlin("plugin.spring") version "1.7.22" } group = "com.example.kotlin" version = "0.0.1-SNAPSHOT" java.sourceCompatibility = JavaVersion.VERSION_17 configurations { compileOnly { extendsFrom(configurations.annotationProcessor.get()) } } repositories { mavenCentral() } dependencies { implementation("org.springframework.boot:spring-boot-starter-data-jpa") implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8") implementation("org.jetbrains.kotlin:kotlin-reflect:1.7.22") implementation("com.fasterxml.jackson.module:jackson-module-kotlin:2.13.3") implementation("org.junit.jupiter:junit-jupiter:5.8.1") implementation("com.querydsl:querydsl-jpa:5.0.0") kapt("com.querydsl:querydsl-apt:5.0.0:jpa") kapt("org.springframework.boot:spring-boot-configuration-processor") runtimeOnly("com.h2database:h2") testImplementation("org.assertj:assertj-core:3.21.0") implementation("org.springframework.boot:spring-boot-starter-web") implementation("org.springframework.boot:spring-boot-starter-web-services") implementation("com.fasterxml.jackson.module:jackson-module-kotlin") implementation("org.jetbrains.kotlin:kotlin-reflect") developmentOnly("org.springframework.boot:spring-boot-devtools") annotationProcessor("org.springframework.boot:spring-boot-configuration-processor") testImplementation("org.springframework.boot:spring-boot-starter-test") testImplementation(kotlin("test")) } tasks { test { useJUnitPlatform() } withType<KotlinCompile> { kotlinOptions { freeCompilerArgs = listOf("-Xjsr305=strict") jvmTarget = "17" } } withType<Test> { useJUnitPlatform() } }

연동을 다해놨는데, 스프링 실행할때 에러가 나네요.. 이유를 못찾겠습니다.구글 드라이브에 올릴게요강의는 회원등록 4분46초 부분 하고 있었습니다. https://drive.google.com/file/d/1Xes5ztWKL5s4NDre1bSuGeL2t-tbnJIO/view?usp=sharing 

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]여기에 질문 내용을 남겨주세요. 회원목록 조회시Whitelabel Error PageThis application has no explicit mapping for /error, so you are seeing this as a fallback.Wed May 31 00:06:03 KST 2023There was an unexpected error (type=Internal Server Error, status=500).No message availablejava.lang.NullPointerException at hello.hellospring.controller.MemberController.list(MemberController.java:40) 라고 뜨며 아래는 MemberController 코드입니다 package hello.hellospring.controller; import hello.hellospring.domain.Member; import hello.hellospring.service.MemberService; import java.util.List; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.PostMapping; @Controller public class MemberController { private final MemberService memberService; @Autowired public MemberController(MemberService memberService) { this.memberService = memberService; } @GetMapping("/members/new") public String createForm() { return "members/createMemberForm"; } @PostMapping("/members/new") public String create(MemberForm form) { Member member = new Member(); member.setName(form.getName()); memberService.join(member); return "redirect:/"; } @GetMapping("/members") private String list(Model model) { List<Member> members = memberService.findMembers(); model.addAttribute("members", members); return "members/memberList"; } } 

낙관 락과 비관 락을 정확히 언제 사용하는지 궁금한데요, 충돌이 잦을 때는 비관 락을 사용한다고 이해하기엔 막연한 느낌이 있어서요, 혹시 실무에서 구체적인 예시를 들어주실 수 있을까요??비관적 락이 구현이 훨씬 간단할 것 같은데, 실제로 실무에서 비관적 락이 아닌 낙관적 락을 직접 구현해서 사용할 일이 있는지도 궁금합니다.충돌이 빈번하게 일어난다면 비관적 락이 더 적합할 수 있다고 하셨는데 이유가 뭔가요? 어떤 부분에서 성능상 이점이 있는지 궁금합니다. 자세하게 설명해주시면 정말 감사할 것 같습니다. 감사합니다!!

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]예시로 드신 Member_Product 테이블의 관계는 주문 테이블이라고 이해가 되는데 이럴경우에는 fk 2개를 pk설정을 하면 중복된 값이 못들어와서 당연히 기본키를 하나 만들어 주는걸로 배웠는데 만약에 주문이 아니고 수강테이블처럼 중복된 값을 막아야 하는 경우에도 테이블 내에 pk를 하나더 만들어 주는게 맞을까요?

실무에서spring.jpa.open-in-view: false로 설정하는 경우가 많은가요 ? 또한 사이드 프로젝트 정도로 규모가 작을 경우그냥 기본 설정대로 true로 사용해도 되나요 ?

[질문 템플릿]1. 강의 내용과 관련된 질문인가요? 예2. 인프런의 질문 게시판과 자주 하는 질문에 없는 내용인가요? 아니오3. 질문 잘하기 메뉴얼을 읽어보셨나요? 예[질문 내용]트랜잭셔널 어노테이션을 레포지토리나 컨트롤러가 아니라 서비스에 붙이는 이유가 있나요?

스프링이 제공하는 기능이 아니라 제가 직접해줘야하는건가요? 영속성 컨텍스트가 일정이상 차면 비워주는 작업을 어떻게 할 수 있을까요?코드가 나와있긴하지만 그 코드는 너무 로우 레벨아닌가요?? SPRING DATA JPA사용하면서 em을 직접적으로 사용하진 않잖아요..자동으로 해주는건가요...?

- 학습 관련 질문을 남겨주세요. 상세히 작성하면 더 좋아요! - 먼저 유사한 질문이 있었는지 검색해보세요. - 서로 예의를 지키며 존중하는 문화를 만들어가요. - 잠깐! 인프런 서비스 운영 관련 문의는 1:1 문의하기를 이용해주세요.userDetailService를 강의에서 만들지도 않았는데 의존주입하는건 처음보네요; 깃허브 소스에도 없구요. 어떻게 구현하라는 뜻인가요.진짜 환불하고싶습니다. 내용도 너무 어렵게 설명하구요.  

어떤 상황에서 하이버네이트가 제공하는 프록시벗기기가 필요한가요?(프록시 객체에서 원본객체를 가져오는 메서드가 필요한 상황)