안녕하세요 네트워크 지식을 쌓기위해 강의신청하게 되었습니다. 나중에도 궁금한게 생겼을 시 강의를 보고 반복학습을 하고싶은데 강의기간이 존재하여 반복학습이 힘들어지는 경우가 생길 듯 한데 수강기한제한을 풀 계획이 있으실까요~? 직장인이라 짬내서 듣어야 할 듯해 제한이 없다면 다음강의 진행도 부담이 덜할듯 해서요~ 우선 시작한 강의는 잘 듣겠습니다 감사합니다~!

안녕하세요,플루터 설치까지 마치고 'flutter doctor'를 실행했는데"Bad CPU type in executable"이라는 에러메세지를 주네요.intell mac이고 모두 정상설치했습니다.해결방법이 있을까요? 

유투브와 인프런 강의를 들으며 개인적으로 어플리케이션을 만들던 중 기능구현에 문제가 발생했습니다. CalendarView에서 리스트에 담긴 특정날짜들을 읽어와해당하는 날짜들을 CalendarView에서 비활성화 하고 싶습니다.  혼자 검색을 해보았지만 번역된 방법을 보아도 모르겠어서 이렇게 질문드립니다,

[질문 템플릿]1. 강의 내용과 관련된 질문인가요? (예/아니오) 예2. 인프런의 질문 게시판과 자주 하는 질문에 없는 내용인가요? (예/아니오) 예3. 질문 잘하기 메뉴얼을 읽어보셨나요? (예/아니오) 예[질문 내용]복습하고 있는데 오류가 나서 검색해보다가 답이 안나와 질문드립니다. 공유링크: https://drive.google.com/file/d/1lSZZAWDOc1GeznWl-pMsibX09JZ2c2LD/view?usp=sharing아무래도 몬가 컨테이너 설정을 잘못한거 같은데 여러번 반복해도 답이 안나오네요...원래는 디비도 연결해보고 여러가지 해보았는데 결국 못찾고 질문 올립니다. package com.example.test; import com.example.test.repo.MemoRepo; import com.example.test.repo.MemoRepoImpl; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import javax.persistence.EntityManager; @Configuration public class SpringConfig { private final EntityManager em; public SpringConfig(EntityManager em) { this.em = em; } @Bean public MemoRepo memoRepo() { return new MemoRepoImpl(em); } } package com.example.test.repo; import com.example.test.Memo; import javax.persistence.EntityManager; import java.util.Optional; public class MemoRepoImpl implements MemoRepo{ private final EntityManager em; public MemoRepoImpl(EntityManager em) { this.em = em; } @Override public Memo save(Memo memo) { return null; } @Override public Optional<Memo> findById(long memoId) { return Optional.empty(); } @Override public void remove(Memo memo) { } @Override public void updateContents(long memoId, String content) { } }

이해가 안되서 강의를 돌려보다가 따로 정리해봤는데,1번. CoreApplication의 main메서드를 실행시키면 현재로서는 에러가 나는게 맞지만, 동작순서만 보자면 CoreApplication의 main메서드를 실행시키면 실행될때 스프링컨테이너가 생성되고 컴포넌트스캔이 되서 @Controller, @Service에 의해 각각LogDemoController, LogDemoService 빈 등록이 일어난다.그리고 또, main메서드가 실행되고있는동안(런타임동안=프로그램이 실행되고있는동안) DI가 일어난다. 그리고나서 고객이 localhost:8080/log-demo로 url을 입력하면 http요청이 들어온것이므로 이때 컴포넌트 스캔이되서 @Component에 의해 자동으로 MyLogger빈이 등록되고 초기화메소드가 실행된다. 그러고난후 @RequestMapping("log-demo")로 되어있으므로 logDemo()메소드를 실행하고, return "OK"로 응답을 준 후에 종료 메소드가 실행된다. 2번. 오류가 나는 이유를 3가지로 정리해봤는데 어떤게 더 적절한 이유일까요..?코드가 오류나는 이유는 런타임동안에 DI를 해야되는데 MyLogger가 request빈인데, 아직 http요청이 오지않아서, MyLogger빈이 생성되지않았고 그래서 의존관계주입이 안되니 오류나는것이다.요청이 들어오지않은 상태에서 DI를 하려니 오류가 발생하는거고, main메서드를 실행하고나서 요청이 오더라도 DI를하는시점에는 MyLogger빈이 스프링컨테이너에 없어서 오류나는것이다.스코프 리퀘스트를 붙이면 요청이 들어오는 시점에 빈이 생성되는데 요청이 들어오질않았으니 빈이없고, 없는 빈을 di하려해서 오류가 나는것이다. 이렇게 이해하면 될까요 ..?

npm에서 지웟고 clean햇는데 게속 저렇게 남아있어서 에러뜨는데 어떻게 지울까요 ?..그리고 Geolocation.watchPosition 쓰는데 2~3초후에 값들어오는데 marker찍으면 왜 출력이안될까요 ....

 querydsl 5.0 버전부터 fetchResult() , fetchCount()가 Deprecated 되서 공식문서에서는 이 두 메서드 대신에 fetch.size를 권장 한다고 합니다 https://devwithpug.github.io/java/querydsl-with-datajpa/참고 하실분 참고하세용

보드탭에서 Create board 로 프로젝트를 생성하는 것과 프로젝트 만들기 버튼을 통해 프로젝트를 생성하는 것의 차이가 있을까요?

안녕하세요. 양질의 수업 잘 듣고 있습니다!string host = Dns.GetHostName(); IPHostEntry ipHost = Dns.GetHostEntry(host); IPAddress ipAddr = ipHost.AddressList[0]; IPEndPoint endPoint = new IPEndPoint(ipAddr, 7777);Unity 클라이언트의 위 코드를 IPAddress ipAddr = IPAddress.Parse("45.157.574.15"); IPEndPoint endPoint = new IPEndPoint(ipAddr, 7777);이렇게 제 외부 IP 주소를 넣고 서버를 켠 후 클라이언트를 다른 컴퓨터에서 실행시켜 봤는데 연결이 안되더라고요... (포트 포워딩도 했고 예제 샘플로도 시도해봤습니다.)구글링을 해봐도 IP주소를 저렇게 지정하면 된다고만 나와있어서 어떤 식으로 더 찾아봐야할지 감이 안잡히네요... 코드 자체에는 문제가 없고 공유기 설정과 같은 외부 문제 코드 자체가 문제강사님이 보시기에는 어느 부분이 문제일 거 같은지 단서라도 주시면 더 열심히 찾아보겠습니다.더 찾아보다가 너무 오래걸려서 작은 힌트라도 얻고자 질문드립니다..

강의에서는 PagingAdpater의 addLoadStateListener를 통해 로딩상태를 인식해 프로그래스바를 보여주는데 일반 ListAdapter는 addLoadStateListener 같은 메서드가 없더라고요 ㅠㅠ 일반 ListAdapter 에서 RecyclerView를 그리기 전에 로딩상태를 알아서 프로그래스바를 보여주는 방법은 없을까요?

제가 delete쿼리를 join해서 사용하고 싶은데제가 시도했을 때는 jpql은 join도 불가하고 @EntityGraph로도 안되더라고요 그럼 delete시에는 다른 테이블과 join하는 방법이 없나요??(jpql이나 스프링 데이터 jpa를 사용시에)

int get_integer() { int input; char c; while (scanf("%d", &input) != 1) { while ((c = getchar()) != '\n') putchar(c); printf(" is not an integer.\n Please try again : "); } return input; }제가 맞게 이해한건지 모르겠는데여기서 putchar(c)에 들어가는건 while (scanf("%d", &input) != 1)에서 scanf의 형식지정자가 맞지않아 뱉어낸 버퍼에 남아있던 값이 맞나요?

안녕하세요 DI 관련해 질문이 있습니다.```java @Controller public class MemberController { private final MemberService memberService; @Autowired public MemberController(MemberService memberService) { this.memberService = memberService; } } private final MemberService memberService; final 키워드를 붙여주는 이유가 궁금합니다.memberSevice 를 변경하지 못하게 하는 이유가 무엇인가요?

실행하는데 중간에 멈추는데 왜그럴까요?"C:\Program Files\Java\jdk-11.0.10\bin\java.exe" "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2022.2.4\lib\idea_rt.jar=60209:C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2022.2.4\bin" -Dfile.encoding=UTF-8 -classpath C:\Users\정다운\study\jpashop\out\production\classes;C:\Users\정다운\study\jpashop\out\production\resources;C:\Users\정다운\.gradle\caches\modules-2\files-2.1\org.springframework.boot\spring-boot-starter-data-jpa\2.7.6\7eef599012347f2fb7f84ba71eba10caf094dfb5\spring-boot-starter-data-jpa-2.7.6.jar;C:\Users\정다운\.gradle\caches\modules-2\files-2.1\org.springframework.boot\spring-boot-starter-thymeleaf\2.7.6\18056127ee9253fbbb71d80e9dbd10827555ec27\spring-boot-starter-thymeleaf-2.7.6.jar;C:\Users\정다운\.gradle\caches\modules-2\files-2.1\org.springframework.boot\spring-boot-starter-validation\2.7.6\cc43bd3745e36bc741e2cf5f43db09fcac874839\spring-boot-starter-validation-2.7.6.jar;C:\Users\정다운\.gradle\caches\modules-2\files-2.1\org.springframework.boot\spring-boot-starter-web\2.7.6\9d0166a0390df593243bdc798ca7a1db20ddea9c\spring-boot-starter-web-2.7.6.jar;C:\Users\정다운\.gradle\caches\modules-2\files-2.1\com.github.gavlyukovskiy\p6spy-spring-boot-starter\1.5.6\495579c7fb01b005f19ec4d5188245c66de0937b\p6spy-spring-boot-starter-1.5.6.jar;C:\Users\정다운\.gradle\caches\modules-2\files-2.1\org.springframework.boot\spring-boot-starter-aop\2.7.6\23061de1832242610092f212f99d49b9a4955a9d\spring-boot-starter-aop-2.7.6.jar;C:\Users\정다운\.gradle\caches\modules-2\files-2.1\org.springframework.boot\spring-boot-starter-jdbc\2.7.6\9db6def4ba06a11b67f0de3eac83441d00350dd6\spring-boot-starter-jdbc-2.7.6.jar;C:\Users\정다운\.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\정다운\.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\정다운\.gradle\caches\modules-2\files-2.1\org.hibernate\hibernate-core\5.6.14.Final\71e407089b71ed7c6e99385fd851c308fed7be44\hibernate-core-5.6.14.Final.jar;C:\Users\정다운\.gradle\caches\modules-2\files-2.1\org.springframework.data\spring-data-jpa\2.7.6\8d0414f5cca5e31509943cd5f97cacdddd7c7384\spring-data-jpa-2.7.6.jar;C:\Users\정다운\.gradle\caches\modules-2\files-2.1\org.springframework\spring-aspects\5.3.24\e97d36c3e516d3dd0579437428b6e26902da0c88\spring-aspects-5.3.24.jar;C:\Users\정다운\.gradle\caches\modules-2\files-2.1\org.springframework.boot\spring-boot-starter\2.7.6\d15341c0fc0b1d1362ce6c737b34679ad1f836c\spring-boot-starter-2.7.6.jar;C:\Users\정다운\.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\정다운\.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\정다운\.gradle\caches\modules-2\files-2.1\org.apache.tomcat.embed\tomcat-embed-el\9.0.69\9c89a289c35b9ec20bdfb692a22dab87256bbe67\tomcat-embed-el-9.0.69.jar;C:\Users\정다운\.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\정다운\.gradle\caches\modules-2\files-2.1\org.springframework.boot\spring-boot-starter-json\2.7.6\77017e2aa78224c3fa10444d659c2ce8765b910\spring-boot-starter-json-2.7.6.jar;C:\Users\정다운\.gradle\caches\modules-2\files-2.1\org.springframework.boot\spring-boot-starter-tomcat\2.7.6\ec920cd7f951f3cff3a0b7af80bb8f7116a3d8a5\spring-boot-starter-tomcat-2.7.6.jar;C:\Users\정다운\.gradle\caches\modules-2\files-2.1\org.springframework\spring-webmvc\5.3.24\33d2187c2bf1cb2c222bd1cc18b618736babcf3d\spring-webmvc-5.3.24.jar;C:\Users\정다운\.gradle\caches\modules-2\files-2.1\org.springframework\spring-web\5.3.24\d89bbcaabb1ff247a089875cbc4211bfe96c9a59\spring-web-5.3.24.jar;C:\Users\정다운\.gradle\caches\modules-2\files-2.1\com.github.gavlyukovskiy\datasource-decorator-spring-boot-autoconfigure\1.5.6\cac386fe9df77870133594f054ee32e5d08ab93d\datasource-decorator-spring-boot-autoconfigure-1.5.6.jar;C:\Users\정다운\.gradle\caches\modules-2\files-2.1\p6spy\p6spy\3.8.2\52299d9a1ec2bc2fb8b1a21cc12dfc1a7c033caf\p6spy-3.8.2.jar;C:\Users\정다운\.gradle\caches\modules-2\files-2.1\org.springframework\spring-aop\5.3.24\efd01bc1048a2e1b6a7442fbd78170bc02c342b7\spring-aop-5.3.24.jar;C:\Users\정다운\.gradle\caches\modules-2\files-2.1\org.aspectj\aspectjweaver\1.9.7\158f5c255cd3e4408e795b79f7c3fbae9b53b7ca\aspectjweaver-1.9.7.jar;C:\Users\정다운\.gradle\caches\modules-2\files-2.1\com.zaxxer\HikariCP\4.0.3\107cbdf0db6780a065f895ae9d8fbf3bb0e1c21f\HikariCP-4.0.3.jar;C:\Users\정다운\.gradle\caches\modules-2\files-2.1\org.springframework\spring-jdbc\5.3.24\909c19ab470a59b9fd23177d26b8e880733b15d4\spring-jdbc-5.3.24.jar;C:\Users\정다운\.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\정다운\.gradle\caches\modules-2\files-2.1\org.jboss.logging\jboss-logging\3.4.3.Final\c4bd7e12a745c0e7f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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\정다운\.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\정다운\.gradle\caches\modules-2\files-2.1\org.attoparser\attoparser\2.0.5.RELEASE\a93ad36df9560de3a5312c1d14f69d938099fa64\attoparser-2.0.5.RELEASE.jar;C:\Users\정다운\.gradle\caches\modules-2\files-2.1\org.unbescape\unbescape\1.1.6.RELEASE\7b90360afb2b860e09e8347112800d12c12b2a13\unbescape-1.1.6.RELEASE.jar;C:\Users\정다운\.gradle\caches\modules-2\files-2.1\com.fasterxml.jackson.core\jackson-annotations\2.13.4\858c6cc78e1f08a885b1613e1d817c829df70a6e\jackson-annotations-2.13.4.jar;C:\Users\정다운\.gradle\caches\modules-2\files-2.1\com.fasterxml.jackson.core\jackson-core\2.13.4\cf934c681294b97ef6d80082faeefbe1edadf56\jackson-core-2.13.4.jar;C:\Users\정다운\.gradle\caches\modules-2\files-2.1\ch.qos.logback\logback-core\1.2.11\a01230df5ca5c34540cdaa3ad5efb012f1f1f792\logback-core-1.2.11.jar;C:\Users\정다운\.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\정다운\.gradle\caches\modules-2\files-2.1\com.h2database\h2\2.1.214\d5c2005c9e3279201e12d4776c948578b16bf8b2\h2-2.1.214.jar;C:\Users\정다운\.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 :: (v2.7.6)2022-11-28 21:24:40.121 INFO 14836 --- [ main] jpabook.jpashop.JpashopApplication : Starting JpashopApplication using Java 11.0.10 on DESKTOP-RJJB2K7 with PID 14836 (C:\Users\정다운\study\jpashop\out\production\classes started by 정다운 in C:\Users\정다운\study\jpashop)2022-11-28 21:24:40.132 INFO 14836 --- [ main] jpabook.jpashop.JpashopApplication : No active profile set, falling back to 1 default profile: "default"2022-11-28 21:24:43.634 INFO 14836 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JPA repositories in DEFAULT mode.2022-11-28 21:24:43.720 INFO 14836 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 29 ms. Found 0 JPA repository interfaces.2022-11-28 21:24:48.596 INFO 14836 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)2022-11-28 21:24:48.642 INFO 14836 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]2022-11-28 21:24:48.643 INFO 14836 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.69]2022-11-28 21:24:49.191 INFO 14836 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext2022-11-28 21:24:49.191 INFO 14836 --- [ main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 8748 ms2022-11-28 21:24:50.256 INFO 14836 --- [ main] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [name: default]2022-11-28 21:24:50.503 INFO 14836 --- [ main] org.hibernate.Version : HHH000412: Hibernate ORM core version 5.6.14.Final2022-11-28 21:24:51.246 INFO 14836 --- [ main] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {5.1.2.Final}2022-11-28 21:24:51.393 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration boolean -> org.hibernate.type.BooleanType@7a0ab4802022-11-28 21:24:51.393 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration boolean -> org.hibernate.type.BooleanType@7a0ab4802022-11-28 21:24:51.394 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.lang.Boolean -> org.hibernate.type.BooleanType@7a0ab4802022-11-28 21:24:51.395 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration numeric_boolean -> org.hibernate.type.NumericBooleanType@2b6fb1972022-11-28 21:24:51.398 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration true_false -> org.hibernate.type.TrueFalseType@7d59e9682022-11-28 21:24:51.400 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration yes_no -> org.hibernate.type.YesNoType@212fafd12022-11-28 21:24:51.404 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration byte -> org.hibernate.type.ByteType@2b43f3142022-11-28 21:24:51.404 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration byte -> org.hibernate.type.ByteType@2b43f3142022-11-28 21:24:51.404 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.lang.Byte -> org.hibernate.type.ByteType@2b43f3142022-11-28 21:24:51.408 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration character -> org.hibernate.type.CharacterType@6f50d55c2022-11-28 21:24:51.408 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration char -> org.hibernate.type.CharacterType@6f50d55c2022-11-28 21:24:51.409 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.lang.Character -> org.hibernate.type.CharacterType@6f50d55c2022-11-28 21:24:51.412 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration short -> org.hibernate.type.ShortType@6889f56f2022-11-28 21:24:51.413 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration short -> org.hibernate.type.ShortType@6889f56f2022-11-28 21:24:51.413 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.lang.Short -> org.hibernate.type.ShortType@6889f56f2022-11-28 21:24:51.417 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration integer -> org.hibernate.type.IntegerType@3b4ef59f2022-11-28 21:24:51.417 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration int -> org.hibernate.type.IntegerType@3b4ef59f2022-11-28 21:24:51.418 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.lang.Integer -> org.hibernate.type.IntegerType@3b4ef59f2022-11-28 21:24:51.422 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration long -> org.hibernate.type.LongType@5a7b309b2022-11-28 21:24:51.422 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration long -> org.hibernate.type.LongType@5a7b309b2022-11-28 21:24:51.422 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.lang.Long -> org.hibernate.type.LongType@5a7b309b2022-11-28 21:24:51.426 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration float -> org.hibernate.type.FloatType@b0225512022-11-28 21:24:51.426 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration float -> org.hibernate.type.FloatType@b0225512022-11-28 21:24:51.426 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.lang.Float -> org.hibernate.type.FloatType@b0225512022-11-28 21:24:51.430 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration double -> org.hibernate.type.DoubleType@530ee28b2022-11-28 21:24:51.431 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration double -> org.hibernate.type.DoubleType@530ee28b2022-11-28 21:24:51.431 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.lang.Double -> org.hibernate.type.DoubleType@530ee28b2022-11-28 21:24:51.436 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration big_decimal -> org.hibernate.type.BigDecimalType@6b4a4e402022-11-28 21:24:51.437 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.math.BigDecimal -> org.hibernate.type.BigDecimalType@6b4a4e402022-11-28 21:24:51.440 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration big_integer -> org.hibernate.type.BigIntegerType@75e80a972022-11-28 21:24:51.441 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.math.BigInteger -> org.hibernate.type.BigIntegerType@75e80a972022-11-28 21:24:51.444 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration string -> org.hibernate.type.StringType@7994a0d12022-11-28 21:24:51.444 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.lang.String -> org.hibernate.type.StringType@7994a0d12022-11-28 21:24:51.446 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration nstring -> org.hibernate.type.StringNVarcharType@1df9186f2022-11-28 21:24:51.449 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration ncharacter -> org.hibernate.type.CharacterNCharType@72c9ebfa2022-11-28 21:24:51.455 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration url -> org.hibernate.type.UrlType@27ec87542022-11-28 21:24:51.455 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.net.URL -> org.hibernate.type.UrlType@27ec87542022-11-28 21:24:51.459 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration Duration -> org.hibernate.type.DurationType@4981d95b2022-11-28 21:24:51.474 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.time.Duration -> org.hibernate.type.DurationType@4981d95b2022-11-28 21:24:51.484 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration Instant -> org.hibernate.type.InstantType@595f99162022-11-28 21:24:51.484 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.time.Instant -> org.hibernate.type.InstantType@595f99162022-11-28 21:24:51.489 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration LocalDateTime -> org.hibernate.type.LocalDateTimeType@5f8f17122022-11-28 21:24:51.490 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.time.LocalDateTime -> org.hibernate.type.LocalDateTimeType@5f8f17122022-11-28 21:24:51.497 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration LocalDate -> org.hibernate.type.LocalDateType@511da44f2022-11-28 21:24:51.498 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.time.LocalDate -> org.hibernate.type.LocalDateType@511da44f2022-11-28 21:24:51.502 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration LocalTime -> org.hibernate.type.LocalTimeType@63d677f52022-11-28 21:24:51.503 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.time.LocalTime -> org.hibernate.type.LocalTimeType@63d677f52022-11-28 21:24:51.506 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration OffsetDateTime -> org.hibernate.type.OffsetDateTimeType@681e913c2022-11-28 21:24:51.507 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.time.OffsetDateTime -> org.hibernate.type.OffsetDateTimeType@681e913c2022-11-28 21:24:51.510 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration OffsetTime -> org.hibernate.type.OffsetTimeType@c48b5432022-11-28 21:24:51.511 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.time.OffsetTime -> org.hibernate.type.OffsetTimeType@c48b5432022-11-28 21:24:51.517 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration ZonedDateTime -> org.hibernate.type.ZonedDateTimeType@3c189422022-11-28 21:24:51.518 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.time.ZonedDateTime -> org.hibernate.type.ZonedDateTimeType@3c189422022-11-28 21:24:51.523 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration date -> org.hibernate.type.DateType@6ad64432022-11-28 21:24:51.524 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.sql.Date -> org.hibernate.type.DateType@6ad64432022-11-28 21:24:51.528 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration time -> org.hibernate.type.TimeType@69a5c6be2022-11-28 21:24:51.529 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.sql.Time -> org.hibernate.type.TimeType@69a5c6be2022-11-28 21:24:51.533 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration timestamp -> org.hibernate.type.TimestampType@a91119b2022-11-28 21:24:51.536 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.sql.Timestamp -> org.hibernate.type.TimestampType@a91119b2022-11-28 21:24:51.541 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.util.Date -> org.hibernate.type.TimestampType@a91119b2022-11-28 21:24:51.551 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration dbtimestamp -> org.hibernate.type.DbTimestampType@2f0ccb342022-11-28 21:24:51.555 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration calendar -> org.hibernate.type.CalendarType@64279ab2022-11-28 21:24:51.555 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.util.Calendar -> org.hibernate.type.CalendarType@64279ab2022-11-28 21:24:51.556 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.util.GregorianCalendar -> org.hibernate.type.CalendarType@64279ab2022-11-28 21:24:51.557 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration calendar_date -> org.hibernate.type.CalendarDateType@2484dbb72022-11-28 21:24:51.583 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration calendar_time -> org.hibernate.type.CalendarTimeType@58a3d5212022-11-28 21:24:51.586 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration locale -> org.hibernate.type.LocaleType@68dfda772022-11-28 21:24:51.587 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.util.Locale -> org.hibernate.type.LocaleType@68dfda772022-11-28 21:24:51.591 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration currency -> org.hibernate.type.CurrencyType@75bd28d2022-11-28 21:24:51.595 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.util.Currency -> org.hibernate.type.CurrencyType@75bd28d2022-11-28 21:24:51.598 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration timezone -> org.hibernate.type.TimeZoneType@cbf19972022-11-28 21:24:51.599 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.util.TimeZone -> org.hibernate.type.TimeZoneType@cbf19972022-11-28 21:24:51.602 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration class -> org.hibernate.type.ClassType@3b5a19ed2022-11-28 21:24:51.602 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.lang.Class -> org.hibernate.type.ClassType@3b5a19ed2022-11-28 21:24:51.607 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration uuid-binary -> org.hibernate.type.UUIDBinaryType@33eb0d42022-11-28 21:24:51.608 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.util.UUID -> org.hibernate.type.UUIDBinaryType@33eb0d42022-11-28 21:24:51.610 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration uuid-char -> org.hibernate.type.UUIDCharType@5ca4dce52022-11-28 21:24:51.614 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration binary -> org.hibernate.type.BinaryType@325162e92022-11-28 21:24:51.614 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration byte[] -> org.hibernate.type.BinaryType@325162e92022-11-28 21:24:51.622 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration [B -> org.hibernate.type.BinaryType@325162e92022-11-28 21:24:51.624 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration wrapper-binary -> org.hibernate.type.WrapperBinaryType@545d25602022-11-28 21:24:51.625 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration Byte[] -> org.hibernate.type.WrapperBinaryType@545d25602022-11-28 21:24:51.626 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration [Ljava.lang.Byte; -> org.hibernate.type.WrapperBinaryType@545d25602022-11-28 21:24:51.632 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration row_version -> org.hibernate.type.RowVersionType@166810172022-11-28 21:24:51.633 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration image -> org.hibernate.type.ImageType@2d206a712022-11-28 21:24:51.642 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration characters -> org.hibernate.type.CharArrayType@565d7d2f2022-11-28 21:24:51.642 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration char[] -> org.hibernate.type.CharArrayType@565d7d2f2022-11-28 21:24:51.643 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration [C -> org.hibernate.type.CharArrayType@565d7d2f2022-11-28 21:24:51.647 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration wrapper-characters -> org.hibernate.type.CharacterArrayType@42a0786f2022-11-28 21:24:51.648 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration [Ljava.lang.Character; -> org.hibernate.type.CharacterArrayType@42a0786f2022-11-28 21:24:51.650 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration Character[] -> org.hibernate.type.CharacterArrayType@42a0786f2022-11-28 21:24:51.653 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration text -> org.hibernate.type.TextType@39652a302022-11-28 21:24:51.655 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration ntext -> org.hibernate.type.NTextType@561f9d922022-11-28 21:24:51.660 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration blob -> org.hibernate.type.BlobType@61d60e382022-11-28 21:24:51.660 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.sql.Blob -> org.hibernate.type.BlobType@61d60e382022-11-28 21:24:51.661 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration materialized_blob -> org.hibernate.type.MaterializedBlobType@20256a0b2022-11-28 21:24:51.667 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration clob -> org.hibernate.type.ClobType@ceb77012022-11-28 21:24:51.667 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.sql.Clob -> org.hibernate.type.ClobType@ceb77012022-11-28 21:24:51.673 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration nclob -> org.hibernate.type.NClobType@79ca7bea2022-11-28 21:24:51.673 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.sql.NClob -> org.hibernate.type.NClobType@79ca7bea2022-11-28 21:24:51.709 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration materialized_clob -> org.hibernate.type.MaterializedClobType@147cc9402022-11-28 21:24:51.711 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration materialized_nclob -> org.hibernate.type.MaterializedNClobType@23e611122022-11-28 21:24:51.716 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration serializable -> org.hibernate.type.SerializableType@226d5af02022-11-28 21:24:51.729 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration object -> org.hibernate.type.ObjectType@578c3fd92022-11-28 21:24:51.731 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration java.lang.Object -> org.hibernate.type.ObjectType@578c3fd92022-11-28 21:24:51.733 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration imm_date -> org.hibernate.type.AdaptedImmutableType@125f16b22022-11-28 21:24:51.734 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration imm_time -> org.hibernate.type.AdaptedImmutableType@5384ce662022-11-28 21:24:51.735 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration imm_timestamp -> org.hibernate.type.AdaptedImmutableType@6b42e36d2022-11-28 21:24:51.735 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration imm_dbtimestamp -> org.hibernate.type.AdaptedImmutableType@131922752022-11-28 21:24:51.736 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration imm_calendar -> org.hibernate.type.AdaptedImmutableType@79195c222022-11-28 21:24:51.736 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration imm_calendar_date -> org.hibernate.type.AdaptedImmutableType@c9b5a992022-11-28 21:24:51.736 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration imm_binary -> org.hibernate.type.AdaptedImmutableType@70be89ec2022-11-28 21:24:51.737 DEBUG 14836 --- [ main] org.hibernate.type.BasicTypeRegistry : Adding type registration imm_serializable -> org.hibernate.type.AdaptedImmutableType@2aee07042022-11-28 21:24:52.135 INFO 14836 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting...2022-11-28 21:24:52.649 INFO 14836 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed.2022-11-28 21:24:52.915 INFO 14836 --- [ main] org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.H2Dialect2022-11-28 21:24:53.160 DEBUG 14836 --- [ main] o.h.type.spi.TypeConfiguration$Scope : Scoping TypeConfiguration [org.hibernate.type.spi.TypeConfiguration@16bbaab3] to MetadataBuildingContext [org.hibernate.boot.internal.MetadataBuildingContextRootImpl@3f357c9d]2022-11-28 21:24:53.963 ERROR 14836 --- [ main] j.LocalContainerEntityManagerFactoryBean : Failed to initialize JPA EntityManagerFactory: mappedBy reference an unknown target entity property: jpabook.jpashop.domain.Category.items in jpabook.jpashop.domain.item.Item.categories2022-11-28 21:24:53.965 WARN 14836 --- [ 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: mappedBy reference an unknown target entity property: jpabook.jpashop.domain.Category.items in jpabook.jpashop.domain.item.Item.categories2022-11-28 21:24:53.965 INFO 14836 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown initiated...2022-11-28 21:24:53.999 INFO 14836 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown completed.2022-11-28 21:24:54.011 INFO 14836 --- [ main] o.apache.catalina.core.StandardService : Stopping service [Tomcat]2022-11-28 21:24:54.046 INFO 14836 --- [ main] ConditionEvaluationReportLoggingListener : Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.2022-11-28 21:24:54.134 ERROR 14836 --- [ 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: mappedBy reference an unknown target entity property: jpabook.jpashop.domain.Category.items in jpabook.jpashop.domain.item.Item.categories at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1804) ~[spring-beans-5.3.24.jar:5.3.24] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:620) ~[spring-beans-5.3.24.jar:5.3.24] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.24.jar:5.3.24] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.24.jar:5.3.24] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.24.jar:5.3.24] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.24.jar:5.3.24] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.24.jar:5.3.24] at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1154) ~[spring-context-5.3.24.jar:5.3.24] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:908) ~[spring-context-5.3.24.jar:5.3.24] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) ~[spring-context-5.3.24.jar:5.3.24] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:147) ~[spring-boot-2.7.6.jar:2.7.6] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:731) ~[spring-boot-2.7.6.jar:2.7.6] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:408) ~[spring-boot-2.7.6.jar:2.7.6] at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) ~[spring-boot-2.7.6.jar:2.7.6] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1303) ~[spring-boot-2.7.6.jar:2.7.6] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1292) ~[spring-boot-2.7.6.jar:2.7.6] at jpabook.jpashop.JpashopApplication.main(JpashopApplication.java:10) ~[classes/:na]Caused by: org.hibernate.AnnotationException: mappedBy reference an unknown target entity property: jpabook.jpashop.domain.Category.items in jpabook.jpashop.domain.item.Item.categories at org.hibernate.cfg.annotations.CollectionBinder.bindStarToManySecondPass(CollectionBinder.java:875) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.cfg.annotations.CollectionBinder$1.secondPass(CollectionBinder.java:826) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.cfg.CollectionSecondPass.doSecondPass(CollectionSecondPass.java:54) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processSecondPasses(InFlightMetadataCollectorImpl.java:1653) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processSecondPasses(InFlightMetadataCollectorImpl.java:1629) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:295) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:1460) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1494) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:58) ~[spring-orm-5.3.24.jar:5.3.24] at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:365) ~[spring-orm-5.3.24.jar:5.3.24] at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:409) ~[spring-orm-5.3.24.jar:5.3.24] at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:396) ~[spring-orm-5.3.24.jar:5.3.24] at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.afterPropertiesSet(LocalContainerEntityManagerFactoryBean.java:341) ~[spring-orm-5.3.24.jar:5.3.24] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1863) ~[spring-beans-5.3.24.jar:5.3.24] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1800) ~[spring-beans-5.3.24.jar:5.3.24] ... 16 common frames omittedProcess finished with exit code 1 

const changeTitle = e => { setTimeout(() => { console.log('update:title'); emit('update:title', e.target.value); }, 500); };이 코드는 타이핑 한 횟수대로 요청을 보내게 되네요. 말씀하신 부분은 디바운스나 스로틀로 해결하는 것이 좋을 것 같아요. 서버에 요청하는 횟수를 줄이는 것이 요점이라고 생각됩니다. 해당 개념에 대해 언급해주시고, 관련된 방법을 제안해주시는 편도 좋을 것 같다고 생각합니다.

강의 영상 중 약 10분 40초 경에 터미널에 serve -s build를 하시는 부분이 있는데,제가 따라서 serve-s build를 입력하면, Python이라고만 터미널에 출력되고 아무 반응이 없습니다.인터넷에 찾아봐도 해결 방법을 모르겠네요...아무래도 Python과 관련된 명령어가 아닌가 생각이 듭니다.

[질문 템플릿]1. 강의 내용과 관련된 질문인가요? (예)2. 인프런의 질문 게시판과 자주 하는 질문에 없는 내용인가요? (아니오)3. 질문 잘하기 메뉴얼을 읽어보셨나요? (예)[질문 내용]안녕하세요. 좋은 강의 덕분에 양질의 지식을 비교적 수월하게 습득하고 있습니다.양방향 연관관계에서 편의 메서드는 어디에 위치하는게 좋은지 여쭙고자 합니다.(비슷한 질문들을 봤지만 이러한 경우에 어떤게 가장 좋은 선택일지 궁금하여 질문드립니다.)비슷한 질문1 : https://www.inflearn.com/questions/16308비슷한 질문2 : https://www.inflearn.com/questions/99330 현재상태위와 같이 일대다(1:N) 관계가 있고 Team 을 애그리거트 루트로 잡았습니다.도메인 룰은 다음과 같습니다.Team 은 반드시 이름이 있어야한다.Player는 반드시 이름과 나이가 있어야한다.Player는 반드시 Team에 소속되어야하며, 하나의 Team 에만 소속될 수 있다.player 의 Team 은 변경될 수 없다.엔티티 코드 입니다. (연관관계 편의 메서드를 애그리거트 루트쪽에 두었습니다.)(두 엔티티는 동일한 패키지에 있습니다. package com.example.jpa.module.team.domain;)@Entity public class Team { @Id @GeneratedValue private Long teamNo; private String name; @OneToMany(mappedBy = "team", cascade = CascadeType.ALL) private List<Player> players = new ArrayList<>(); //생성자 public Team(String name) { this.name = name; } //연관관계 편의 메서드 public void addPlayer(Player player) { player.setTeam(this); this.players.add(player); } }@Entity public class Player { @Id @GeneratedValue private Long playerNo; private String name; private Integer age; @ManyToOne(fetch = FetchType.LAZY) @JoinColumn(name = "team_no") private Team team; //생성자 public Player(String name, int age) { this.name = name; this.age = age; } void setTeam(Team team) { this.team = team; } }service 계층 코드입니다.Team team = new Team("team1"); Player player = new Player("kim", 24); team.addPlayer(player); teamRepository.save(team);Team 이 Player 를 완전히 소유하는 관계이기 때문에 애그리거트 루트를 Team 으로 잡았고 연관관계 메서드 또한 Team 에 있는게 자연스러워 보입니다.(예시가 Team-Player라 결합도가 좀 떨어지는것 처럼 느껴지는데 주문-주문항목 이나 게시글-첨부파일 같은 관계로 봐주시면 감사하겠습니다.)문제점연관관계 편의 메서드 addPlayer(..)가 호출되기 전까지 Player의 도메인 룰이 깨진 상태가 됩니다.도메인 룰 3번 "Player 는 반드시 Team에 소속되어야 한다" 를 위반하게 됩니다.Player의 setTeam(..) 메서드를 클래스 외부에 공개해야 합니다.같은 패키지라 public 으로 공개하진 않았지만 해당 메서드로 인해 도메인 룰 4번 "player 의 Team 은 변경될 수 없다." 를 위반할 여지가 생겼습니다.setTeam(..) 메서드에 this.team != null 인 경우 예외를 발생시켜 도메인 룰을 지킬 수 있지만 좋은 방법인지 잘 모르겠습니다..시도한 방법Player의 생성자에 Team을 받도록 합니다.public Player(Team team, String name, int age) { this.team = team; this.name = name; this.age = age; }근데 이렇게 하니 그냥 연관관계 편의 메서드를 Player에 두는게 나은것 같아 생성될때 연관관계를 맺도록 정적 팩토리 메서드를 작성했습니다.public static Player createAndLink(Team team, String name, int age) { Player player = new Player(team, name, age); //생성자 private 으로 변경 team.getPlayers().add(player); //반대편 연관관계 설정 return player; }일단 도메인 룰은 모두 만족하는 듯 보이나 service 계층 코드가 뭔가 부자연스럽습니다.Team team = new Team("team1"); Player player = Player.createAndLink(team, "kim", 24); teamRepository.save(team);위 코드를 보면 player를 생성하고 사용하지 않는것 처럼 보여 불필요한 코드로 인식됩니다.(인텔리제이에서도 player가 미사용 중이라고 나옵니다.)혹시 위와 같은 상황에서 어떻게 해결하는게 가장 좋은 방법일까요?(긴 글 읽어주셔서 감사합니다.)

well-formed-iterator의 개념적 정의는 이해하였습니다. 근데 이걸 왜 구현해야하는지 에 대한 의문이 남아 개인적으로 아래와 같이 정리해보았습니다.이터러블/이터레이터 프로토콜을 따르는 어떤 값이 어디서 혹은 어떤 시점에 사용이 되던 가장 마지막 next 메소드를 호출한 이후 상태를 유지하기 위함혹시 위 내용에서 틀린 부분이라던가 혹은 또 다른 이유가 있을까 해서 질문남깁니다...!

개발자 콘솔 네트워크 탭에서 HTTP 응답 메세지 원문을 보는 방법을 알 수 있을까요?? 구글링과 네트워크 탭을 열심히 찾아봐도 알기 어려워서 질문 남겨요

선생님 안녕하세요! 강의 재미있게 잘 듣고 있습니다.유용한 강의 열어주셔서 감사합니다 :) [질문1]아이콘 만들기 강의에서, 다 완성된 아이콘을 화이트 프레임 위에서 확인하라고 하셨는데키라인을 만들어둔 프레임을 키라인 없이 화이트 배경만 남기고 한번에 복사하시더라구요요거 어떻게 하는걸까요..? 방법을 몰라서 노가다로 하나씩 프레임을 다시 만들었습니다 ..![질문2]키라인을 만들고나서 실제 아이콘을 만들 때 키라인을 건들지 않으려면 잠궈둬야 한다고 하셨는데저 자물쇠 모양으로 잠궈야하는건지, 그룹화를 해야하는건지 헷갈립니다!자물쇠로 잠궈두면 키라인 프레임이 복사가 안되더라구요 ㅠ 복사한 다음에 잠궈야하는걸까요..?