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-11\bin\java.exe" "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2022.3.3\lib\idea_rt.jar=50808:C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2022.3.3\bin" -Dfile.encoding=UTF-8 -classpath "C:\Users\민규\OneDrive\바탕 화면\Study\jpashop\out\production\classes;C:\Users\민규\OneDrive\바탕 화면\Study\jpashop\out\production\resources;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.springframework.boot\spring-boot-starter-data-jpa\2.7.14\ad7d3be24a386ec45ce020b8922e9d056f7a6835\spring-boot-starter-data-jpa-2.7.14.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.springframework.boot\spring-boot-starter-validation\2.7.14\6e88ca463b6d7294f3206da9a57a645ca41b9665\spring-boot-starter-validation-2.7.14.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.springframework.boot\spring-boot-starter-thymeleaf\2.7.14\91a1934c6fae08a28665182ab802d41e0b44ffd\spring-boot-starter-thymeleaf-2.7.14.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.springframework.boot\spring-boot-starter-web\2.7.14\300b311c5fb98a2ee547df33a9d37782dddb496e\spring-boot-starter-web-2.7.14.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.springframework.boot\spring-boot-starter-aop\2.7.14\c4fb902f51ab09247de60c463761980d0d1a5888\spring-boot-starter-aop-2.7.14.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.springframework.boot\spring-boot-starter-jdbc\2.7.14\80b80408b6b75ce0dc2833cb07fd1ce6620d1f3b\spring-boot-starter-jdbc-2.7.14.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\jakarta.transaction\jakarta.transaction-api\1.3.3\c4179d48720a1e87202115fbed6089bdc4195405\jakarta.transaction-api-1.3.3.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\jakarta.persistence\jakarta.persistence-api\2.2.3\8f6ea5daedc614f07a3654a455660145286f024e\jakarta.persistence-api-2.2.3.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.hibernate\hibernate-core\5.6.15.Final\ab14b7cef1fdff654ca81923048a6034d6c7cfa7\hibernate-core-5.6.15.Final.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.springframework.data\spring-data-jpa\2.7.14\d5f2e34cce48ed4d668e760db200e854cbbe4d87\spring-data-jpa-2.7.14.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.springframework\spring-aspects\5.3.29\dbcf1c1ce847b0fb186b5dde18968c9a46900f28\spring-aspects-5.3.29.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.springframework.boot\spring-boot-starter\2.7.14\5506200907ff3c3458506a8e16866c684f28bdbd\spring-boot-starter-2.7.14.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.apache.tomcat.embed\tomcat-embed-el\9.0.78\a39a2f2839516a5d3c05a4c0d7d1252a114a5b91\tomcat-embed-el-9.0.78.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.hibernate.validator\hibernate-validator\6.2.5.Final\a68959c06e5f8ff45faff469aa16f232c04af620\hibernate-validator-6.2.5.Final.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.thymeleaf\thymeleaf-spring5\3.0.15.RELEASE\7170e1bcd1588d38c139f7048ebcc262676441c3\thymeleaf-spring5-3.0.15.RELEASE.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.thymeleaf.extras\thymeleaf-extras-java8time\3.0.4.RELEASE\36e7175ddce36c486fff4578b5af7bb32f54f5df\thymeleaf-extras-java8time-3.0.4.RELEASE.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.springframework.boot\spring-boot-starter-json\2.7.14\34fbe387993dafef8b2c29516ebe54fec7108181\spring-boot-starter-json-2.7.14.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.springframework.boot\spring-boot-starter-tomcat\2.7.14\e203b8792f4bcfaa1d07956adb6dee7014a20881\spring-boot-starter-tomcat-2.7.14.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.springframework\spring-webmvc\5.3.29\fdaefee29fcb8459aab748b571d8bb7bb7fdb175\spring-webmvc-5.3.29.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.springframework\spring-web\5.3.29\4cd333e48d9a05d05c05ae7426242ecfe4cfb681\spring-web-5.3.29.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.springframework\spring-aop\5.3.29\397c588ce63ba4c185a8c1bd2f1e9139075b3bf1\spring-aop-5.3.29.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.aspectj\aspectjweaver\1.9.7\158f5c255cd3e4408e795b79f7c3fbae9b53b7ca\aspectjweaver-1.9.7.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\com.zaxxer\HikariCP\4.0.3\107cbdf0db6780a065f895ae9d8fbf3bb0e1c21f\HikariCP-4.0.3.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.springframework\spring-jdbc\5.3.29\25c0b36f780af98b2d3b554e9a6258ac599b6115\spring-jdbc-5.3.29.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.hibernate.common\hibernate-commons-annotations\5.1.2.Final\e59ffdbc6ad09eeb33507b39ffcf287679a498c8\hibernate-commons-annotations-5.1.2.Final.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.jboss.logging\jboss-logging\3.4.3.Final\c4bd7e12a745c0e7f6cf98c45cdcdf482fd827ea\jboss-logging-3.4.3.Final.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\net.bytebuddy\byte-buddy\1.12.23\d470526e8c4566c04e9ae5d3ccb62d1a7aa58986\byte-buddy-1.12.23.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\antlr\antlr\2.7.7\83cd2cd674a217ade95a4bb83a8a14f351f48bd0\antlr-2.7.7.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.jboss\jandex\2.4.2.Final\1e1c385990b258ff1a24c801e84aebbacf70eb39\jandex-2.4.2.Final.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\com.fasterxml\classmate\1.5.1\3fe0bed568c62df5e89f4f174c101eab25345b6c\classmate-1.5.1.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.glassfish.jaxb\jaxb-runtime\2.3.8\c90a335a07c60db986f29d35b0f8ac0a18f0f989\jaxb-runtime-2.3.8.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.springframework\spring-context\5.3.29\c374a72716d19220ca142efaab910adf5717c5d0\spring-context-5.3.29.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.springframework\spring-orm\5.3.29\83953e2af9c1848227239b4695c7596a0f112da3\spring-orm-5.3.29.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.springframework.data\spring-data-commons\2.7.14\c8c4825d930c9615bc7c9b42f433c9c14761fcaa\spring-data-commons-2.7.14.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.springframework\spring-tx\5.3.29\dd26c6e31db036c3f96c24e8ff3b769a00dfc999\spring-tx-5.3.29.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.springframework\spring-beans\5.3.29\be40f557f3fa52c703f00e127ff639f8cf499617\spring-beans-5.3.29.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.springframework\spring-core\5.3.29\528eafe4cef7bccf3df290dd99ac5833a9756183\spring-core-5.3.29.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.slf4j\slf4j-api\1.7.36\6c62681a2f655b49963a5983b8b0950a6120ae14\slf4j-api-1.7.36.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.springframework.boot\spring-boot-autoconfigure\2.7.14\4851957607f74fc4335858d66fb755f1b0c95006\spring-boot-autoconfigure-2.7.14.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.springframework.boot\spring-boot\2.7.14\762261093a3e15388216c45d6a9ba7fdc022b74d\spring-boot-2.7.14.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.springframework.boot\spring-boot-starter-logging\2.7.14\ea9c060fd1e4d17cdd8a9ba3dec8076c17d22a23\spring-boot-starter-logging-2.7.14.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\jakarta.annotation\jakarta.annotation-api\1.3.5\59eb84ee0d616332ff44aba065f3888cf002cd2d\jakarta.annotation-api-1.3.5.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.yaml\snakeyaml\1.30\8fde7fe2586328ac3c68db92045e1c8759125000\snakeyaml-1.30.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\jakarta.validation\jakarta.validation-api\2.0.2\5eacc6522521f7eacb081f95cee1e231648461e7\jakarta.validation-api-2.0.2.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.thymeleaf\thymeleaf\3.0.15.RELEASE\13e3296a03d8a597b734d832ed8656139bf9cdd8\thymeleaf-3.0.15.RELEASE.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\com.fasterxml.jackson.datatype\jackson-datatype-jsr310\2.13.5\8ba3b868e81d7fc6ead686bd2353859b111d9eaf\jackson-datatype-jsr310-2.13.5.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\com.fasterxml.jackson.module\jackson-module-parameter-names\2.13.5\a401a99e7a45450fd3ef76e82ba39005fd1a8c22\jackson-module-parameter-names-2.13.5.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\com.fasterxml.jackson.datatype\jackson-datatype-jdk8\2.13.5\1278f38160812811c56eb77f67213662ed1c7a2e\jackson-datatype-jdk8-2.13.5.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\com.fasterxml.jackson.core\jackson-databind\2.13.5\aa95e46dbc32454f3983221d420e78ef19ddf844\jackson-databind-2.13.5.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.apache.tomcat.embed\tomcat-embed-websocket\9.0.78\3d389e849edf92d5bc6a778a47428581773af3d6\tomcat-embed-websocket-9.0.78.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.apache.tomcat.embed\tomcat-embed-core\9.0.78\ff73a2003d4b066b9affdc70827f6e8d282ab723\tomcat-embed-core-9.0.78.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.springframework\spring-expression\5.3.29\44ac795a057c4a6360063801c54a2d148e5a2808\spring-expression-5.3.29.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\jakarta.xml.bind\jakarta.xml.bind-api\2.3.3\48e3b9cfc10752fba3521d6511f4165bea951801\jakarta.xml.bind-api-2.3.3.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.glassfish.jaxb\txw2\2.3.8\66e0297f1196f0d15a776e699de1b8e6ac5d44dd\txw2-2.3.8.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\com.sun.istack\istack-commons-runtime\3.0.12\cbbe1a62b0cc6c85972e99d52aaee350153dc530\istack-commons-runtime-3.0.12.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.springframework\spring-jcl\5.3.29\4f84fbeec60adb1a50734b6077836e53844f0134\spring-jcl-5.3.29.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\ch.qos.logback\logback-classic\1.2.12\d4dee19148dccb177a0736eb2027bd195341da78\logback-classic-1.2.12.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.apache.logging.log4j\log4j-to-slf4j\2.17.2\17dd0fae2747d9a28c67bc9534108823d2376b46\log4j-to-slf4j-2.17.2.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.slf4j\jul-to-slf4j\1.7.36\ed46d81cef9c412a88caef405b58f93a678ff2ca\jul-to-slf4j-1.7.36.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.attoparser\attoparser\2.0.5.RELEASE\a93ad36df9560de3a5312c1d14f69d938099fa64\attoparser-2.0.5.RELEASE.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.unbescape\unbescape\1.1.6.RELEASE\7b90360afb2b860e09e8347112800d12c12b2a13\unbescape-1.1.6.RELEASE.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\com.fasterxml.jackson.core\jackson-annotations\2.13.5\136f77ab424f302c9e27230b4482e8000e142edf\jackson-annotations-2.13.5.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\com.fasterxml.jackson.core\jackson-core\2.13.5\d07c97d3de9ea658caf1ff1809fd9de930a286a\jackson-core-2.13.5.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\ch.qos.logback\logback-core\1.2.12\1d8e51a698b138065d73baefb4f94531faa323cb\logback-core-1.2.12.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\org.apache.logging.log4j\log4j-api\2.17.2\f42d6afa111b4dec5d2aea0fe2197240749a4ea6\log4j-api-2.17.2.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\com.h2database\h2\2.1.214\d5c2005c9e3279201e12d4776c948578b16bf8b2\h2-2.1.214.jar;C:\Users\민규\.gradle\caches\modules-2\files-2.1\com.sun.activation\jakarta.activation\1.2.2\74548703f9851017ce2f556066659438019e7eb5\jakarta.activation-1.2.2.jar" jpabook.jpashop.JpashopApplication. ____ _/\\ / ___'_ __ (_)_ _ \ \ \ \( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \\\/ ___)| |_)| | | | | || (_| | ) ) ) )' |____| .__|_| |_|_| |_\__, | / / / /=========|_|==============|___/=/_/_/_/:: Spring Boot :: (v2.7.14)2023-08-16 15:16:35.129 INFO 6060 --- [ main] jpabook.jpashop.JpashopApplication : Starting JpashopApplication using Java 11.0.18 on DESKTOP-R06VPME with PID 6060 (C:\Users\민규\OneDrive\바탕 화면\Study\jpashop\out\production\classes started by 민규 in C:\Users\민규\OneDrive\바탕 화면\Study\jpashop)2023-08-16 15:16:35.136 INFO 6060 --- [ main] jpabook.jpashop.JpashopApplication : No active profile set, falling back to 1 default profile: "default"2023-08-16 15:16:36.872 INFO 6060 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JPA repositories in DEFAULT mode.2023-08-16 15:16:36.903 INFO 6060 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 14 ms. Found 0 JPA repository interfaces.2023-08-16 15:16:38.080 INFO 6060 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)2023-08-16 15:16:38.094 INFO 6060 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]2023-08-16 15:16:38.094 INFO 6060 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.78]2023-08-16 15:16:38.273 INFO 6060 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext2023-08-16 15:16:38.273 INFO 6060 --- [ main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 2995 ms2023-08-16 15:16:38.545 INFO 6060 --- [ main] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [name: default]2023-08-16 15:16:38.624 INFO 6060 --- [ main] org.hibernate.Version : HHH000412: Hibernate ORM core version 5.6.15.Final2023-08-16 15:16:38.916 INFO 6060 --- [ main] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {5.1.2.Final}2023-08-16 15:16:39.035 INFO 6060 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting...2023-08-16 15:16:39.190 INFO 6060 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed.2023-08-16 15:16:39.228 INFO 6060 --- [ main] org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.H2Dialect2023-08-16 15:16:39.542 ERROR 6060 --- [ main] j.LocalContainerEntityManagerFactoryBean : Failed to initialize JPA EntityManagerFactory: Illegal attempt to map a non collection as a @OneToMany, @ManyToMany or @CollectionOfElements: jpabook.jpashop.domain.Order.member2023-08-16 15:16:39.543 WARN 6060 --- [ main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]: Invocation of init method failed; nested exception is org.hibernate.AnnotationException: Illegal attempt to map a non collection as a @OneToMany, @ManyToMany or @CollectionOfElements: jpabook.jpashop.domain.Order.member2023-08-16 15:16:39.543 INFO 6060 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown initiated...2023-08-16 15:16:39.560 INFO 6060 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown completed.2023-08-16 15:16:39.565 INFO 6060 --- [ main] o.apache.catalina.core.StandardService : Stopping service [Tomcat]2023-08-16 15:16:39.582 INFO 6060 --- [ main] ConditionEvaluationReportLoggingListener :Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.2023-08-16 15:16:39.615 ERROR 6060 --- [ main] o.s.boot.SpringApplication : Application run failedorg.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]: Invocation of init method failed; nested exception is org.hibernate.AnnotationException: Illegal attempt to map a non collection as a @OneToMany, @ManyToMany or @CollectionOfElements: jpabook.jpashop.domain.Order.memberat org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1804) ~[spring-beans-5.3.29.jar:5.3.29]at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:620) ~[spring-beans-5.3.29.jar:5.3.29]at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.29.jar:5.3.29]at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.29.jar:5.3.29]at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.29.jar:5.3.29]at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.29.jar:5.3.29]at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.29.jar:5.3.29]at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1157) ~[spring-context-5.3.29.jar:5.3.29]at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:911) ~[spring-context-5.3.29.jar:5.3.29]at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) ~[spring-context-5.3.29.jar:5.3.29]at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:147) ~[spring-boot-2.7.14.jar:2.7.14]at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:731) ~[spring-boot-2.7.14.jar:2.7.14]at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:408) ~[spring-boot-2.7.14.jar:2.7.14]at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) ~[spring-boot-2.7.14.jar:2.7.14]at org.springframework.boot.SpringApplication.run(SpringApplication.java:1303) ~[spring-boot-2.7.14.jar:2.7.14]at org.springframework.boot.SpringApplication.run(SpringApplication.java:1292) ~[spring-boot-2.7.14.jar:2.7.14]at jpabook.jpashop.JpashopApplication.main(JpashopApplication.java:11) ~[classes/:na]Caused by: org.hibernate.AnnotationException: Illegal attempt to map a non collection as a @OneToMany, @ManyToMany or @CollectionOfElements: jpabook.jpashop.domain.Order.memberat org.hibernate.cfg.annotations.CollectionBinder.getCollectionBinder(CollectionBinder.java:325) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final]at org.hibernate.cfg.AnnotationBinder.processElementAnnotations(AnnotationBinder.java:1977) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final]at org.hibernate.cfg.AnnotationBinder.processIdPropertiesIfNotAlready(AnnotationBinder.java:968) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final]at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:793) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final]at org.hibernate.boot.model.source.internal.annotations.AnnotationMetadataSourceProcessorImpl.processEntityHierarchies(AnnotationMetadataSourceProcessorImpl.java:225) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final]at org.hibernate.boot.model.process.spi.MetadataBuildingProcess$1.processEntityHierarchies(MetadataBuildingProcess.java:239) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final]at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:282) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final]at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:1460) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final]at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1494) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final]at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:58) ~[spring-orm-5.3.29.jar:5.3.29]at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:365) ~[spring-orm-5.3.29.jar:5.3.29]at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:409) ~[spring-orm-5.3.29.jar:5.3.29]at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:396) ~[spring-orm-5.3.29.jar:5.3.29]at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.afterPropertiesSet(LocalContainerEntityManagerFactoryBean.java:341) ~[spring-orm-5.3.29.jar:5.3.29]at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1863) ~[spring-beans-5.3.29.jar:5.3.29]at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1800) ~[spring-beans-5.3.29.jar:5.3.29]... 16 common frames omittedProcess finished with exit code 1main메소드실행하면 이렇게 뜨고 종료 됩니다 h2 서버에 테이블도 안 만들어져요http://naver.me/x6ABJK1o <- domain 파일 주소

문득 궁금한게 생겨 질문드립니다.강의에서는 Template Callback 패턴에서 Callback 인터페이스를 생성해서 사용하고있는데 아래코드처럼 기존 자바의 Runnable 인터페이스를 사용해서 콜백함수를 넘겨줘도 상관이없나요?  결과는 동일한것으로 보이는데 혹이 차이점이 있다면 무엇이 다른지 여쭤보고싶습니다 

도서관 애플리케이션을 실행하는 도중 아래와 같은 긴 오류가 떴습니다. 검색을 해도 잘 모르겠습니다 ㅠ어떻게 해야 할까요? Error executing DDL "drop table if exists user cascade " via JDBC StatementCaused by: org.h2.jdbc.JdbcSQLSyntaxErrorException: Syntax error in SQL statement "drop table if exists [*]user cascade "; expected "identifier"; SQL statement:Error executing DDL "create table user (id bigint generated by default as identity, age integer, name varchar(20) not null, primary key (id))" via JDBC StatementCaused by: org.h2.jdbc.JdbcSQLSyntaxErrorException: Syntax error in SQL statement "create table [*]user (id bigint generated by default as identity, age integer, name varchar(20) not null, primary key (id))"; expected "identifier"; SQL statement:Error executing DDL "alter table if exists user_loan_history add constraint FKa17jbf1po26eytdyvyj73b4rw foreign key (user_id) references user" via JDBC StatementCaused by: org.h2.jdbc.JdbcSQLSyntaxErrorException: Syntax error in SQL statement "alter table if exists user_loan_history add constraint FKa17jbf1po26eytdyvyj73b4rw foreign key (user_id) references [*]user"; expected "identifier"; SQL statement: 

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. 강의처럼 oreApplicationTests에서 오류가 나는데 오류내용이 달라서 질문드립니다 ,,ㅠㅠ오류내용Logging system failed to initialize using configuration from 'null'java.lang.IllegalStateException: Logback configuration error detected: ERROR in ch.qos.logback.core.ConsoleAppender[STDOUT] - No encoder set for the appender named "STDOUT". at org.springframework.boot.logging.logback.LogbackLoggingSystem.reportConfigurationErrorsIfNecessary(LogbackLoggingSystem.java:260) at org.springframework.boot.logging.logback.LogbackLoggingSystem.loadConfiguration(LogbackLoggingSystem.java:247) at org.springframework.boot.logging.logback.LogbackLoggingSystem.reinitialize(LogbackLoggingSystem.java:319) at org.springframework.boot.logging.AbstractLoggingSystem.initializeWithConventions(AbstractLoggingSystem.java:73) at org.springframework.boot.logging.AbstractLoggingSystem.initialize(AbstractLoggingSystem.java:60) at org.springframework.boot.logging.logback.LogbackLoggingSystem.initialize(LogbackLoggingSystem.java:187) at org.springframework.boot.context.logging.LoggingApplicationListener.initializeSystem(LoggingApplicationListener.java:332) at org.springframework.boot.context.logging.LoggingApplicationListener.initialize(LoggingApplicationListener.java:298) at org.springframework.boot.context.logging.LoggingApplicationListener.onApplicationEnvironmentPreparedEvent(LoggingApplicationListener.java:246) at org.springframework.boot.context.logging.LoggingApplicationListener.onApplicationEvent(LoggingApplicationListener.java:223) at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172) at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165) at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:143) at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:131) at org.springframework.boot.context.event.EventPublishingRunListener.multicastInitialEvent(EventPublishingRunListener.java:136) at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:81) at org.springframework.boot.SpringApplicationRunListeners.lambda$environmentPrepared$2(SpringApplicationRunListeners.java:64) at java.base/java.lang.Iterable.forEach(Iterable.java:75) at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:118) at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:112) at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:63) at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:356) at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) at org.springframework.boot.test.context.SpringBootContextLoader.lambda$loadContext$3(SpringBootContextLoader.java:137) at org.springframework.util.function.ThrowingSupplier.get(ThrowingSupplier.java:58) at org.springframework.util.function.ThrowingSupplier.get(ThrowingSupplier.java:46) at org.springframework.boot.SpringApplication.withHook(SpringApplication.java:1406) at org.springframework.boot.test.context.SpringBootContextLoader$ContextLoaderHook.run(SpringBootContextLoader.java:545) at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:137) at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:108) at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:187) at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:119) at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:127) at org.springframework.test.context.web.ServletTestExecutionListener.setUpRequestContextIfNecessary(ServletTestExecutionListener.java:191) at org.springframework.test.context.web.ServletTestExecutionListener.prepareTestInstance(ServletTestExecutionListener.java:130) at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:241) at org.springframework.test.context.junit.jupiter.SpringExtension.postProcessTestInstance(SpringExtension.java:138) at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$invokeTestInstancePostProcessors$10(ClassBasedTestDescriptor.java:377) at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.executeAndMaskThrowable(ClassBasedTestDescriptor.java:382) at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$invokeTestInstancePostProcessors$11(ClassBasedTestDescriptor.java:377) at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:179) at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1625) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) at java.base/java.util.stream.StreamSpliterators$WrappingSpliterator.forEachRemaining(StreamSpliterators.java:310) at java.base/java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:735) at java.base/java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:734) at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:762) at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.invokeTestInstancePostProcessors(ClassBasedTestDescriptor.java:376) at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$instantiateAndPostProcessTestInstance$6(ClassBasedTestDescriptor.java:289) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.instantiateAndPostProcessTestInstance(ClassBasedTestDescriptor.java:288) at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$testInstancesProvider$4(ClassBasedTestDescriptor.java:278) at java.base/java.util.Optional.orElseGet(Optional.java:364) at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$testInstancesProvider$5(ClassBasedTestDescriptor.java:277) at org.junit.jupiter.engine.execution.TestInstancesProvider.getTestInstances(TestInstancesProvider.java:31) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$prepare$0(TestMethodTestDescriptor.java:105) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:104) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:68) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$prepare$2(NodeTestTask.java:123) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.prepare(NodeTestTask.java:123) at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:90) at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$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$9(NodeTestTask.java:139) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$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$9(NodeTestTask.java:139) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35) at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57) at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:147) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:127) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:90) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:55) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:102) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:54) at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114) at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86) at org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86) at org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:53) at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:57) 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:232) at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:55)java.lang.IllegalStateException: Failed to load ApplicationContext for [WebMergedContextConfiguration@597f48df testClass = hello.core.CoreApplicationTests, locations = [], classes = [hello.core.CoreApplication], contextInitializerClasses = [], activeProfiles = [], propertySourceLocations = [], propertySourceProperties = ["org.springframework.boot.test.context.SpringBootTestContextBootstrapper=true"], contextCustomizers = [org.springframework.boot.test.autoconfigure.actuate.observability.ObservabilityContextCustomizerFactory$DisableObservabilityContextCustomizer@1f, org.springframework.boot.test.autoconfigure.properties.PropertyMappingContextCustomizer@0, org.springframework.boot.test.autoconfigure.web.servlet.WebDriverContextCustomizerFactory$Customizer@6cc0bcf6, org.springframework.boot.test.context.filter.ExcludeFilterContextCustomizer@f5c79a6, org.springframework.boot.test.json.DuplicateJsonObjectContextCustomizerFactory$DuplicateJsonObjectContextCustomizer@49a64d82, org.springframework.boot.test.mock.mockito.MockitoContextCustomizer@0, org.springframework.boot.test.web.client.TestRestTemplateContextCustomizer@37d3d232, org.springframework.boot.test.context.SpringBootTestAnnotation@a360168f], resourceBasePath = "src/main/webapp", contextLoader = org.springframework.boot.test.context.SpringBootContextLoader, parent = null] at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:143) at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:127) at org.springframework.test.context.web.ServletTestExecutionListener.setUpRequestContextIfNecessary(ServletTestExecutionListener.java:191) at org.springframework.test.context.web.ServletTestExecutionListener.prepareTestInstance(ServletTestExecutionListener.java:130) at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:241) at org.springframework.test.context.junit.jupiter.SpringExtension.postProcessTestInstance(SpringExtension.java:138) at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$invokeTestInstancePostProcessors$10(ClassBasedTestDescriptor.java:377) at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.executeAndMaskThrowable(ClassBasedTestDescriptor.java:382) at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$invokeTestInstancePostProcessors$11(ClassBasedTestDescriptor.java:377) at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:179) at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1625) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) at java.base/java.util.stream.StreamSpliterators$WrappingSpliterator.forEachRemaining(StreamSpliterators.java:310) at java.base/java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:735) at java.base/java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:734) at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:762) at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.invokeTestInstancePostProcessors(ClassBasedTestDescriptor.java:376) at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$instantiateAndPostProcessTestInstance$6(ClassBasedTestDescriptor.java:289) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.instantiateAndPostProcessTestInstance(ClassBasedTestDescriptor.java:288) at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$testInstancesProvider$4(ClassBasedTestDescriptor.java:278) at java.base/java.util.Optional.orElseGet(Optional.java:364) at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$testInstancesProvider$5(ClassBasedTestDescriptor.java:277) at org.junit.jupiter.engine.execution.TestInstancesProvider.getTestInstances(TestInstancesProvider.java:31) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$prepare$0(TestMethodTestDescriptor.java:105) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:104) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:68) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$prepare$2(NodeTestTask.java:123) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.prepare(NodeTestTask.java:123) at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:90) at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$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$9(NodeTestTask.java:139) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$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$9(NodeTestTask.java:139) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35) at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57) at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:147) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:127) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:90) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:55) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:102) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:54) at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114) at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86) at org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86) at org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:53) at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:57) 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:232) at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:55)Caused by: java.lang.IllegalStateException: java.lang.IllegalStateException: Logback configuration error detected: ERROR in ch.qos.logback.core.ConsoleAppender[STDOUT] - No encoder set for the appender named "STDOUT". at org.springframework.boot.context.logging.LoggingApplicationListener.initializeSystem(LoggingApplicationListener.java:347) at org.springframework.boot.context.logging.LoggingApplicationListener.initialize(LoggingApplicationListener.java:298) at org.springframework.boot.context.logging.LoggingApplicationListener.onApplicationEnvironmentPreparedEvent(LoggingApplicationListener.java:246) at org.springframework.boot.context.logging.LoggingApplicationListener.onApplicationEvent(LoggingApplicationListener.java:223) at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172) at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165) at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:143) at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:131) at org.springframework.boot.context.event.EventPublishingRunListener.multicastInitialEvent(EventPublishingRunListener.java:136) at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:81) at org.springframework.boot.SpringApplicationRunListeners.lambda$environmentPrepared$2(SpringApplicationRunListeners.java:64) at java.base/java.lang.Iterable.forEach(Iterable.java:75) at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:118) at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:112) at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:63) at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:356) at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) at org.springframework.boot.test.context.SpringBootContextLoader.lambda$loadContext$3(SpringBootContextLoader.java:137) at org.springframework.util.function.ThrowingSupplier.get(ThrowingSupplier.java:58) at org.springframework.util.function.ThrowingSupplier.get(ThrowingSupplier.java:46) at org.springframework.boot.SpringApplication.withHook(SpringApplication.java:1406) at org.springframework.boot.test.context.SpringBootContextLoader$ContextLoaderHook.run(SpringBootContextLoader.java:545) at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:137) at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:108) at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:187) at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:119) ... 72 moreCaused by: java.lang.IllegalStateException: Logback configuration error detected: ERROR in ch.qos.logback.core.ConsoleAppender[STDOUT] - No encoder set for the appender named "STDOUT". at org.springframework.boot.logging.logback.LogbackLoggingSystem.reportConfigurationErrorsIfNecessary(LogbackLoggingSystem.java:260) at org.springframework.boot.logging.logback.LogbackLoggingSystem.loadConfiguration(LogbackLoggingSystem.java:247) at org.springframework.boot.logging.logback.LogbackLoggingSystem.reinitialize(LogbackLoggingSystem.java:319) at org.springframework.boot.logging.AbstractLoggingSystem.initializeWithConventions(AbstractLoggingSystem.java:73) at org.springframework.boot.logging.AbstractLoggingSystem.initialize(AbstractLoggingSystem.java:60) at org.springframework.boot.logging.logback.LogbackLoggingSystem.initialize(LogbackLoggingSystem.java:187) at org.springframework.boot.context.logging.LoggingApplicationListener.initializeSystem(LoggingApplicationListener.java:332) ... 97 more 

public class LoginFilter extends UsernamePasswordAuthenticationFilter이 작업을 통해서 login으로 들어오는 것을@Override public Authentication attemptAuthentication(HttpServletRequest request, HttpServletResponse response) throws AuthenticationException { try { User user = objectMapper.readValue(request.getInputStream(), User.class); UsernamePasswordAuthenticationToken authenticationToken = new UsernamePasswordAuthenticationToken(user.getUsername(), user.getPassword()); return authenticationManager.authenticate(authenticationToken); } catch (IOException e) { log.error("{}", e); } return super.attemptAuthentication(request, response); }이 작업을 통해서 로그인 하는 걸로 알고있는데,이러한 경우에 컨트롤러 테스트 코드를 어떻게 작성할 수 있는 건지 궁금합니다. api가 아니라 자꾸 에러가 발생하는데혹시 이러한 경우에 api 테스트 코드 작성 팁좀 가르쳐주실 수 있나요?  이러한 예외가 발생합니다.이유를 모르겠습니다. Postman으로 할 때는 잘 동작합니다 ㅜㅜ그냥 /api/login 이라는 api를 생성해서 테스트해야 될까요?

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? 예2. 인프런의 질문 게시판과 자주 하는 질문에 없는 내용인가요? 예3. 질문 잘하기 메뉴얼을 읽어보셨나요? 예[질문 내용]강의를 듣다가 헷갈리는 부분이 생겨 글 올립니다.ServletExController의 각 메핑 메서드에response.send() 메서드가 있는데 이 메서드 호출 시 BasicErrorController가 호출되어서 Spring boot가 자동으로 등록한 /error를 호출하게 되는 건가요?

fetchtype을 LAZY로 설정했을 경우 N+1문제는 이해했습니다. 그런데 EAGER의 경우 Order를 위한 1개의 select쿼리 뒤에 delivery를 위한 1개의 쿼리와 3중 조인문 2개의 쿼리가 나가고 있는데 (위 사진) join문이 EAGER처리를 위한 쿼리라면 왜 order 조회쿼리 뒤에 바로 나가지 않고 delivery 조회쿼리가 한번 나간 뒤에 나가는건지 왜 delivery에 대한 추가 쿼리는 나가는데 member는 조회쿼리가 나가지 않고 join문이 나가는지 EAGER의 경우에도 모든 연관객체가 영속성 콘텍스트 안에 존재하지 않는다면 정확히 1+N개의 쿼리가 나가는지 (=LAZY와 똑같이 1+N개의 쿼리가 나가는지) 이 세가지가 이해되지 않습니다.EAGER일때 쿼리를 이해해보려고 노력했는데 "LAZY와는 추가쿼리(N)가 나가는 시점의 차이가 있다" 정도 말고는 이해가 되지 않아 질문드립니다.

No matching variant of org.springframework.boot:spring-boot-gradle-plugin:3.1.2 was found. The consumer was configured to find a library for use during runtime, compatible with Java 11, packaged as a jar, and its dependencies declared externally, as well as attribute 'org.gradle.plugin.api-version' with value '8.2.1' but: 현재 SDK는 11 Oracle, Language level은 11- local variable syntax for lambda parameters로 되어있습니다. 원래는 컴파일이 됐었는데 1번 강의(스프링 프로젝트를 시작하는 두 번째 방법) 이후 안되는 것 같습니다. 어떻게 해야할까요?

도서관앱의 포트번호가 8080으로 설정되어 있는것 같은데 포트번호를 변경하는 방법을 모르겠습니다..ㅠ

안녕하세요.강의 잘보고 있습니다.현재 저는 게시글, 댓글 기능을 구현하고 있습니다.  타임리프 + 스프링부트로 구현하고 있는데, 게시글 상세를 눌렀을때 어떤 방식으로 댓글을 가져오는 것이 효율적인지가 궁금합니다. 게시글 상세 요청 -> 페이지 응답 -> 응답받은 페이지에서 ajax로 다시 서버에 댓글 페이지 요청게시글 상세 요청 -> 댓글이랑 상세페이지 한꺼번에 타임리프로 렌더링해서 페이지 응답 (즉, 항상 게시글 상세와 댓글을 함께 랜더링함)게시글 상세 요청 -> 첫 댓글 페이지랑 게시글 상세페이지 한꺼번에 타임리프로 렌더링해서 페이지 응답 -> 두번째 댓글페이지부터는 ajax로 응답 혹은 다른 방법이 있다면 알려주세요 !!

=========================================[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]트랜잭션 매니저 관련 강의를 듣고 있는데요 예를 들어 private final PlatformTransactionManager transactionManager;이렇게 해서 트랜잭션 매니저를 주입받는다고 했는데 이 클래스가 빈으로 등록된것도 아닌데 어떻게 주입받는건가요??

다른 분들이 올리신 글 보고 inputStream.close()를 추가해주었는데도 UncheckedIOException 에러가 발생합니다. 버전문제일까요..?현재 사용중인 버전은 2.7.14 입니다.

public class ServletUploadControllerV2 { @Value("${file.dir}") private String fileDir; @GetMapping("/upload") public String newFile() { return "upload-form"; } @PostMapping("/upload") public String saveFileV1(HttpServletRequest request) throws ServletException, IOException { log.info("request={}", request); String itemName = request.getParameter("itemName"); log.info("itemName={}", itemName); Collection<Part> parts = request.getParts(); log.info("parts={}", parts); for (Part part : parts) { log.info("==== PART ===="); log.info("name={}", part.getName()); Collection<String> headerNames = part.getHeaderNames(); for (String headerName : headerNames) { log.info("header {}: {}", headerName, part.getHeader(headerName)); } //편의 메서드 //content-disposition; filename log.info("submittedFileName={}", part.getSubmittedFileName()); log.info("size={}", part.getSize()); //part body size //데이터 읽기 InputStream inputStream = part.getInputStream(); String body = StreamUtils.copyToString(inputStream, StandardCharsets.UTF_8); log.info("body={}", body); //파일에 저장하기 if (StringUtils.hasText(part.getSubmittedFileName())) { String fullPath = fileDir + part.getSubmittedFileName(); log.info("파일 저장 fullPath={}", fullPath); part.write(fullPath); } } return "upload-form"; } }  <로그>2023-08-15 18:53:08.744 INFO 11860 --- [nio-8081-exec-7] h.u.c.ServletUploadControllerV2 : request=org.apache.catalina.connector.RequestFacade@46f8d0d2023-08-15 18:53:08.744 INFO 11860 --- [nio-8081-exec-7] h.u.c.ServletUploadControllerV2 : itemName=null2023-08-15 18:53:08.744 INFO 11860 --- [nio-8081-exec-7] h.u.c.ServletUploadControllerV2 : parts=[]2023-08-15 18:53:08.747 DEBUG 11860 --- [nio-8081-exec-7] o.a.coyote.http11.Http11InputBuffer : Before fill(): parsingHeader: [true], parsingRequestLine: [true], parsingRequestLinePhase: [0], parsingRequestLineStart: [0], byteBuffer.position(): [0], byteBuffer.limit(): [0], end: [926]2023-08-15 18:53:08.747 DEBUG 11860 --- [nio-8081-exec-7] o.a.coyote.http11.Http11InputBuffer : Received []2023-08-15 18:53:08.747 DEBUG 11860 --- [nio-8081-exec-7] o.apache.coyote.http11.Http11Processor : Socket: [org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper@7e5a37d:org.apache.tomcat.util.net.NioChannel@72e2ee37:java.nio.channels.SocketChannel[connected local=/0:0:0:0:0:0:0:1:8081 remote=/0:0:0:0:0:0:0:1:50696]], Status in: [OPEN_READ], State out: [OPEN]2023-08-15 18:53:16.474 DEBUG 11860 --- [nio-8081-exec-8] o.a.coyote.http11.Http11InputBuffer : Before fill(): parsingHeader: [true], parsingRequestLine: [true], parsingRequestLinePhase: [0], parsingRequestLineStart: [0], byteBuffer.position(): [0], byteBuffer.limit(): [0], end: [926]2023-08-15 18:53:16.474 DEBUG 11860 --- [nio-8081-exec-9] o.a.coyote.http11.Http11InputBuffer : Before fill(): parsingHeader: [true], parsingRequestLine: [true], parsingRequestLinePhase: [0], parsingRequestLineStart: [0], byteBuffer.position(): [0], byteBuffer.limit(): [0], end: [0]2023-08-15 18:53:16.474 DEBUG 11860 --- [nio-8081-exec-8] o.apache.coyote.http11.Http11Processor : Error parsing HTTP request headerjava.io.EOFException: null at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.fillReadBuffer(NioEndpoint.java:1347) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.read(NioEndpoint.java:1234) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.coyote.http11.Http11InputBuffer.fill(Http11InputBuffer.java:785) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.coyote.http11.Http11InputBuffer.parseRequestLine(Http11InputBuffer.java:348) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:263) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:926) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1791) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na]2023-08-15 18:53:16.474 DEBUG 11860 --- [nio-8081-exec-9] o.apache.coyote.http11.Http11Processor : Error parsing HTTP request headerjava.io.EOFException: null at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.fillReadBuffer(NioEndpoint.java:1347) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.read(NioEndpoint.java:1234) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.coyote.http11.Http11InputBuffer.fill(Http11InputBuffer.java:785) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.coyote.http11.Http11InputBuffer.parseRequestLine(Http11InputBuffer.java:348) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:263) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:926) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1791) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na]2023-08-15 18:53:16.474 DEBUG 11860 --- [nio-8081-exec-8] o.apache.coyote.http11.Http11Processor : Error state [CLOSE_CONNECTION_NOW] reported while processing requestjava.io.EOFException: null at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.fillReadBuffer(NioEndpoint.java:1347) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.read(NioEndpoint.java:1234) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.coyote.http11.Http11InputBuffer.fill(Http11InputBuffer.java:785) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.coyote.http11.Http11InputBuffer.parseRequestLine(Http11InputBuffer.java:348) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:263) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:926) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1791) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na]2023-08-15 18:53:16.474 DEBUG 11860 --- [nio-8081-exec-8] o.apache.coyote.http11.Http11Processor : Socket: [org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper@45100ea6:org.apache.tomcat.util.net.NioChannel@3f9eb895:java.nio.channels.SocketChannel[connected local=/0:0:0:0:0:0:0:1:8081 remote=/0:0:0:0:0:0:0:1:50697]], Status in: [OPEN_READ], State out: [CLOSED]2023-08-15 18:53:16.474 DEBUG 11860 --- [nio-8081-exec-9] o.apache.coyote.http11.Http11Processor : Error state [CLOSE_CONNECTION_NOW] reported while processing requestjava.io.EOFException: null at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.fillReadBuffer(NioEndpoint.java:1347) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.read(NioEndpoint.java:1234) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.coyote.http11.Http11InputBuffer.fill(Http11InputBuffer.java:785) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.coyote.http11.Http11InputBuffer.parseRequestLine(Http11InputBuffer.java:348) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:263) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:926) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1791) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.78.jar:9.0.78] at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na]2023-08-15 18:53:16.475 DEBUG 11860 --- [nio-8081-exec-9] o.apache.coyote.http11.Http11Processor : Socket: [org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper@7e5a37d:org.apache.tomcat.util.net.NioChannel@72e2ee37:java.nio.channels.SocketChannel[connected local=/0:0:0:0:0:0:0:1:8081 remote=/0:0:0:0:0:0:0:1:50696]], Status in: [OPEN_READ], State out: [CLOSED] itemName에서부터 null이 들어가서 오류가 나는 것 같은데 강사님 소스 그대로 붙여넣기 해도 동일한 오류가 발생합니다ㅠㅠitemName 파라미터를 왜 못 가져올까요,,

강의대로 했는데 안되네요.  우선 깃 링크로 접속하여 코드 다운로드받은뒤 압축풀어서 intellij 로 open 하여 해당 강의처럼 maven -> compile 더블클릭 했는데,  잘 돌던중 에러한줄이 뜹니다. /Users/jjeoV/Desktop/jjeoV/인프런/keesun/studyolle-master 2/target/classes/static/node_modules/.bin/jdenticon jdenticon 파일이 없는건가요? 그냥 딸랑 경로하나뜨니까 뭔지 잘 몰르겠네요.  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]생성 메서드를 만드는 경우는 본인이 정하는 걸까요 .. ?item 생성 할 때처럼 간단한 경우는 생성메서드를 만들지 않고 orderItem 생성 시와 같이 복잡한 코드의 경우에만 미리 생성 메서드를 만들어 놓는건지 어떤 경우에 생성 메서드를 만들어 놓는지 강의를 봐도 감이 안 잡혀서요 ..어떤 경우에 생성 메서드를 사용하는 것이 좋은 경우인지 설명해주실 수 있을까용 ..추가로 orderitem을 생성하는 createOrderItem 메서드를 만들고 createOrder시에 createOrderItem으로 생성한 orderItem을 사용하는 걸까요 ? 혹 뒷부분 강의에 해당 내용이 나온다면 이 부분은 답변 생략해주셔도 됩니다 .!

안녕하세요 !잘 따라하고 있다고 생각했는데, 아래 이미지와 같이 에러가 납니다.오타 등이 있나 해서, 코드 다운 받아서, 전체 복사 붙여 넣기 해봤는데 해당 항목에 똑같은 에러가 뜹니다.해당 파일의 전체 코드 드립니다.package hello.servlet.web.frontcontroller.v5; import hello.servlet.web.frontcontroller.ModelView; import hello.servlet.web.frontcontroller.MyView; import hello.servlet.web.frontcontroller.v3.controller.MemberFormControllerV3; import hello.servlet.web.frontcontroller.v3.controller.MemberListControllerV3; import hello.servlet.web.frontcontroller.v3.controller.MemberSaveControllerV3; import hello.servlet.web.frontcontroller.v5.adapter.ControllerV3HandlerAdapter; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.IOException; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; @WebServlet(name = "frontControllerServletV5", urlPatterns = "/front-controller/v5/*") public class FrontControllerServletV5 extends HttpServlet { // private Map<String, ControllerV4> controllerMap = new HashMap<>(); //비교 위해 작성 private final Map<String, Object> handlerMappingMap = new HashMap<>(); private final List<MyHandlerAdapter> handlerAdapters = new ArrayList<>(); public FrontControllerServletV5() { initHandlerMappingMap(); initHandlerAdapters(); } private void initHandlerMappingMap() { handlerMappingMap.put("/front-controller/v5/v3/members/new-form", new MemberFormControllerV3()); handlerMappingMap.put("/front-controller/v5/v3/members/save", new MemberSaveControllerV3()); handlerMappingMap.put("/front-controller/v5/v3/members", new MemberListControllerV3()); } private void initHandlerAdapters() { handlerAdapters.add(new ControllerV3HandlerAdapter()); } @Override protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { Object handler = getHandler(request); if (handler == null) { response.setStatus(HttpServletResponse.SC_NOT_FOUND); return; } MyHandlerAdapter adapter = getHandlerAdapter(handler); ModelView mv = adapter.handle(request, response, handler); String viewName = mv.getViewName(); //논리이름 ex)new-form MyView view = viewResolver(viewName); view.render(mv.getModel(), request, response); } private Object getHandler(HttpServletRequest request) { String requestURI = request.getRequestURI(); return handlerMappingMap.get(requestURI); } private MyHandlerAdapter getHandlerAdapter(Object handler) { for (MyHandlerAdapter adapter : handlerAdapters) { if(adapter.supports(handler)) { return adapter; } } throw new IllegalArgumentException("handler adapter를 찾을 수 없습니다. handler = " + handler); } private static MyView viewResolver(String viewName) { return new MyView("/WEB-INF/views/" + viewName + ".jsp"); } } 어떤 부분이 잘 못 되었는지 확인 좀 부탁 드립니다늘 감사합니다 ♥ 

'JdbcTemplate 적용1- 기본' 강의에서 findById()를 설명하실때,'결과가 없을경우'는 catch로 예외처리를 해주시는데'둘 이상일 경우' IncorrectResultSizeDataAccessException에 대해서는 왜 catch문으로 예외처리를 하지 않는것인지 궁금합니다.

[질문 템플릿]1. 강의 내용과 관련된 질문인가요? 예2. 인프런의 질문 게시판과 자주 하는 질문에 없는 내용인가요? 예3. 질문 잘하기 메뉴얼을 읽어보셨나요? 예[질문 내용]섹션 2에서, 멀티 체크 박스를 만들 때 다음과 같은 메소드를 구현했습니다. @Slf4j @Controller @RequestMapping("/form/items") @RequiredArgsConstructor public class FormItemController { private final ItemRepository itemRepository; @ModelAttribute("regions") public Map<String, String> regions() { Map<String, String> regions = new LinkedHashMap<>(); regions.put("SEOUL", "서울"); regions.put("BUSAN", "부산"); regions.put("JEJU", "제주"); return regions; } //... }위 메소드는 컨트롤러마다 호출되어 모델에 Attribute를 자동으로 추가해주고 있습니다.근데, 이 코드를 구현하면서 다음과 같은 의문이 들었습니다.regions map에 들어가는 키-값 벨류는 비즈니스 로직에 해당하지 않나?비즈니스 로직이면 컨트롤러보단 서비스에 구현되어야 하는 내용이 아닌가?제가 MVC와 비즈니스 로직에 대한 개념이 아직 부족한건지,혹은 예제니까 간단하게 컨트롤러에 구현하신건가요?

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.강의 화면을 캡쳐했습니다.제가 제대로 이해한 것이 맞는지 궁금하여 질문합니다.MemberRepository 인터페이스 부분인데 위 사진의 void save(Member member)에서 파라미터로 앞서 만든 Member 클래스와 member 변수를 새로 생성해준게 맞나요?

 이전에 혼자 ddd, 헥사고날 아키텍처를 공부하면서 느꼈던게객체지향적인 코드 + 테스트하기 용이한 코드를 작성하기 위해서는 결국 domain layer와 persistence layer의 분리가 필수적인데jpa entity와 domain entity를 완전히 분리했을 때 JPA가 mybatis나 jdbc template를 사용하는 것과 비교해 가지는 강점이 있는지 잘 모르겠습니다..그나마 jpa entity와 domain entity를 분리하지 않는다면 어떻게든 온몸 비틀기로 그나마 테스트하기 용이하고 객체지향스러운 코드를 작성해볼 수는 있지만 결국 복잡한 로직에서는 쿼리 때문에 문제가 생기고 ㅜ지식 공유자님께서는 이 문제에 대해 어떻게 생각하시나요?