const mapOptions = { ..., logoControlOptions: { position: naver.maps.Position.BOTTOM_LEFT, }, };제 생각에는 전역 컨텍스트에 naver 객체가 생성되어 접근이 가능 한 것 같은데, 전역 컨텍스트에 naver라는 객체가 생성되는 시점이 궁금합니다.. !

안녕하세요 좋은 강의 감사합니다.자바/스프링 부트 기준으로 프로젝트를 했을 때, 제가 에러처리를 별도로 해주지도 않았음에도 500 에러(NPE 등등)가 나거나, 성공시 200 성공 코드가 나가는 것은 누가 만드는 것인가요? 웹서버(ex. 내장형 톰캣) 또는 스프링부트(컨테이너) 인가요?   친절한 답변 항상 감사합니다.

안녕하세요 좋은 강의 항상 감사합니다.강의에서 405 에러를 내보내면 Allow 헤더 필드 값에 가능한 메서들 값을 내보내준다고 웹서버에서 구현되어 있다 => 이 말이 궁금합니다.다음과 같은 api(/members -GET, DELETE) 를 자바/스프링부트 로 구현해놨습니다. 그런데 프런트에서 /members - POST로 요청을 하게 되었을 때의 경우가 궁금합니다.웹서버에서 자동으로 405 에러와 함께 Allow 헤더 값에 GET, DELETE 값들을 내보내준다는 것인가요?위의 경우에서 말하는 웹서버는 내장형 톰캣을 말하고, 이렇게 구현되어 있는 다른 내장형 웹서버들도 많나요? 친절한 답변 미리 감사드립니다.

안녕하세요. 처음 강의를 들었습니다.강의에서 사용한 분무기는 5~6V 정도일 거라고 생각하는데요,해당 릴레이로도 220V 전압을 제어할 수도 있나요? 외부 현장에서는 220V 제품을 제어할 일이 많을것 같은데, 그때도 동일한 릴레이를 사용하는지 아니면 다른 종류의 릴레이를 사용하는지 궁금합니다.예를 들어 220V 펌프나 환풍기 등을 제어할 때도 동일한 릴레이를 사용하는지, 아니면 별도의 제품 또는 방법으로 제어해야 하나요?바쁘시겠지만 답변 부탁드립니다.감사합니다.

- 학습 관련 질문을 남겨주세요. 상세히 작성하면 더 좋아요! - 먼저 유사한 질문이 있었는지 검색해보세요. - 서로 예의를 지키며 존중하는 문화를 만들어가요. - 잠깐! 인프런 서비스 운영 관련 문의는 1:1 문의하기를 이용해주세요.1-O에서 13번 라인 cnt=(cnt*10)+1이 어떻게 나왔는지 강의를 들어도 이해가 되지 않습니다ㅠㅠ 모듈로 연산으로 (a+b)%m=((a%m)+(b%m))%m 나머지를 덧섬 연산하기 전에 미리 구하는 것은 이해가 되는데 13번 라인의 식은 왜 저렇게 나왔는지 이해가 안되네요..n==3이라고 할 때첫번째 루프: else에서cnt=(cnt(1)*10)+1=11cnt%=n => cnt=2;두번째 루프:else에서cnt=(cnt(2)*10)+1=21(?) 여기서 21이 무엇을 의미하는지 모르겠습니다...ㅠ 

안녕하세요. 좋은 강의 잘 듣고 있습니다.필수헤더에서의 '필수'라는 의미가 무엇인가요?궁금한 점은 아래입니다.자주 사용하는 웹 브라우저 소프트웨어(크롬, 엣지 등) 이 요청할 때 알아서(api통신일 경우 프런트 개발자들이 명시하지 않아도) '무조건' 넣는다는 말인가요?필수가 아니라면 어떻게 되나요? 강의를 보면서 구글에서 f12로 api들을 살펴보니, request 부분의 헤더에 HOST가 없는 것들도 있떠라구요. 친절한 답변 항상 감사드립니다.

 3분 43초에 외래키가 되면 null이 될 수 없다고 하셨습니다.근데, 제가 알기론 외래키는 null을 허용합니다... 혹시, jpa에서는 기본적으로 외래키에 null을 허용하지 않는걸까요? 

안녕하세요 좋은 강의 항상 잘 듣고 있습니다.아래 질문들을 봤는데도 이해가 되지 않아 질문을 올립니다. 2:21 그림에서 aaa.com, bbb.com, ccc.com 은 모두 다 하나의 ip(200.200.200.2)에 연결이 된 거잖아요? 궁금한 점들은 아래입니다.그런데 aaa.com, bbb.com, ccc.com 들은 하나의 host 개념인 것이지, port로 구분하는 프로세스의 개념이 아닌거죠? aaa.com(200.200.200.2:15포트), bbb.com(200.200.200.2:16포트), ccc.com(200.200.200.2:17포트) 처럼 다른거죠? 가상호스트라는 개념을 쓰면 여러 호스트들을 하나의 ip에 연결을 할 수 있고, 각각의 host들은 서로 중복되는 포트를 사용할 수 있는 것인가요? 아래처럼요.aaa.com(200.200.200.2:15포트), bbb.com(200.200.200.2:15포트) ccc.com(200.200.200.2:15포트)  

안녕하세요 강사님,8.6 네트워크 정책에 관한 강의를 듣다가 질문이 있어서 글을 남깁니다.3-2-NetworkPolicy-ipBlock.yaml 파일을 apply 시켰을 때 기대되는 동작은default 네임스페이스의 모든 파드들은 172.16.0.0/16 대역의 수신 트래픽만 허용, 172.16.0.0/17 대역의 송신 트래픽만 허용.제가 궁금한 것은 해당 네트워크 정책을 apply 시킨 후 호스트 상에서 pod에 ping을 날렸는데 답변이 잘 온다는 점이었습니다. 현재 호스트의 ip 대역은 네트워크 정책을 만족하지 못함에도 말이죠.혹시 호스트는 네트워크 정책을 bypass 할 수 있나? 해서 뒤의 실습에서도 테스트 해봤는데 4-2-NetworkPolicy-namespaceSelector-dev2.yaml 의 경우에는 호스트에서 ping을 날려도 답변을 받지 못하더군요. 아마 호스트는 dev2 네임스페이스가 아니라고 인식했기 때문이겠죠. 그러면 결론적으로 왜 3-2 실습의 경우 호스트의 request를 허락해주었을까? 가 궁금합니다. 두 가지 가능성이 있을 거 같아요.제가 알고 있는 호스트의 ip 192.168.1.10이 아니다. 이는 가상의 ip 이었다.쿠버네티스의 네트워크정책 중 ipBlock 태그에 한해서만 호스트는 이를 무시하고 요청을 할 수 있다.그 외긴 질문 읽어주셔서 감사합니다. 시간 날 때 답변주시면 감사하겠습니다!  

#pragma once #include <bitset> template <class T> class Storage8 { private: T array_[8]; public: void set(const int& index, const T& value) { array_[index] = value; } const T& get(int index) const { return array_[index]; } }; template<> class Storage8<bool> { private: unsigned char data_; public: Storage8() :data_(0){} void set(int index, bool value) { unsigned char mask = 1 << index; // left shift std::cout <<"index bit : " << std::bitset<8>(mask) << std::endl; if (value) data_ |= mask; // flag on else data_ &= ~mask; // flag off std::cout << "After masking value : " << std::bitset<8>(data_) << std::endl; } bool get(int index) { unsigned char mask = 1 << index; return(data_ & mask) != 0; // Has data_? } };main.cpp#include <iostream> #include <array> #include "Storage8.h" using namespace std; int main() { // Define a Storage8 for integers Storage8<int> intStorage; for (int count = 0; count < 8; count++) intStorage.set(count, count); for (int count = 0; count < 8; count++) cout << intStorage.get(count) << endl; cout << "Sizeof Storage8<int> " << sizeof(Storage8<int>) << endl; // Define a Storage8 for bool Storage8<bool> boolStorage; for (int count = 0; count < 8; count++) boolStorage.set(count, count & 3); // 늘어나는 count와 3을 bitmasking for (int count = 0; count < 8; count++) cout << std::boolalpha<< boolStorage.get(count) << endl; cout << "Sizeof Storage8<bool> " << sizeof(Storage8<bool>) << endl; return 0; }이런 결과가 나왔는데요, 원문 learncpp에서는 boolStorage.set(count, count & 3); 처럼 value값에 늘어나는 count와 숫자 3을 넣었습니다. 그런데 이 원리가 어떻게 되는지 잘 모르겠습니다.

안녕하세요.oauth 를 사용하여 마이크로서비스 인증/인가를 구현하는 경우가 꽤 많은 것으로 알고 있습니다.구글링을 해보면 사용자가 최초 로그인 시, 인증서버에서 jwt 토큰을 발행해주고 사용자는 jwt 토큰을 사용하여 각 마이크로서비스의 api 를 요청하는 컨셉으로 확인됩니다.이때 각각의 마이크로서비스는 oauth 에서 리소스 서버의 역할로 볼 수 있고요.그래서 최초 토큰을 발행하는 인증 방식은 단순히 id/password 를 넘겨서 토큰을 발행받는 Resource Owner Password grant 방식을 사용했던 것 같은데요.하지만 강의에서 설명해 주신대로 최근 스프링 시큐리티의 Authorization 서버에서는 Resoure Owner Password grant 방식을 더 이상 사용할 수 없다고 하셨어요.그렇다면 마이크로서비스를 위해 Authorization 서버를 구현할 때, 토큰 발행을 어떤 방식으로 구현하는 것이 바람직할까요? 제3의 앱에서 로그인을 하는 것도 아닌데 Authorization code 방식을 적용할 필요가 있는 것인지 모르겠네요. 

"C:\Program Files\Java\jdk-18\bin\java.exe" -ea -Didea.test.cyclic.buffer.size=1048576 "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA 2022.3.2\lib\idea_rt.jar=12660:C:\Program Files\JetBrains\IntelliJ IDEA 2022.3.2\bin" -Dfile.encoding=UTF-8 -Dsun.stdout.encoding=UTF-8 -Dsun.stderr.encoding=UTF-8 -classpath "C:\Users\Mathlife\.m2\repository\org\junit\platform\junit-platform-launcher\1.9.2\junit-platform-launcher-1.9.2.jar;C:\Users\Mathlife\.m2\repository\org\junit\platform\junit-platform-engine\1.9.2\junit-platform-engine-1.9.2.jar;C:\Users\Mathlife\.m2\repository\org\opentest4j\opentest4j\1.2.0\opentest4j-1.2.0.jar;C:\Users\Mathlife\.m2\repository\org\junit\platform\junit-platform-commons\1.9.2\junit-platform-commons-1.9.2.jar;C:\Users\Mathlife\.m2\repository\org\apiguardian\apiguardian-api\1.1.2\apiguardian-api-1.1.2.jar;C:\Program Files\JetBrains\IntelliJ IDEA 2022.3.2\lib\idea_rt.jar;C:\Program Files\JetBrains\IntelliJ IDEA 2022.3.2\plugins\junit\lib\junit5-rt.jar;C:\Program 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com.intellij.rt.junit.JUnitStarter -ideVersion5 -junit5 hello.springtx.apply.TxBasicTest 14:42:46.190 [main] DEBUG org.springframework.boot.test.context.SpringBootTestContextBootstrapper - Neither @ContextConfiguration nor @ContextHierarchy found for test class [TxBasicTest]: using SpringBootContextLoader 14:42:46.192 [main] DEBUG org.springframework.test.context.support.AbstractContextLoader - Could not detect default resource locations for test class [hello.springtx.apply.TxBasicTest]: no resource found for suffixes {-context.xml, Context.groovy}. 14:42:46.210 [main] DEBUG org.springframework.boot.test.context.SpringBootTestContextBootstrapper - Using ContextCustomizers for test class [TxBasicTest]: [DisableObservabilityContextCustomizer, PropertyMappingContextCustomizer, Customizer, ExcludeFilterContextCustomizer, DuplicateJsonObjectContextCustomizer, MockitoContextCustomizer, TestRestTemplateContextCustomizer] 14:42:46.300 [main] DEBUG org.springframework.test.context.util.TestContextSpringFactoriesUtils - Skipping candidate TestExecutionListener [org.springframework.test.context.web.ServletTestExecutionListener] due to a missing dependency. Specify custom TestExecutionListener classes or make the default TestExecutionListener classes and their required dependencies available. Offending class: [jakarta/servlet/ServletContext] 14:42:46.309 [main] DEBUG org.springframework.boot.test.context.SpringBootTestContextBootstrapper - Using TestExecutionListeners for test class [TxBasicTest]: [DirtiesContextBeforeModesTestExecutionListener, ApplicationEventsTestExecutionListener, MockitoTestExecutionListener, DependencyInjectionTestExecutionListener, DirtiesContextTestExecutionListener, TransactionalTestExecutionListener, SqlScriptsTestExecutionListener, EventPublishingTestExecutionListener, RestDocsTestExecutionListener, MockRestServiceServerResetTestExecutionListener, MockMvcPrintOnlyOnFailureTestExecutionListener, WebDriverTestExecutionListener, MockWebServiceServerTestExecutionListener, ResetMocksTestExecutionListener] 14:42:46.310 [main] DEBUG org.springframework.test.context.support.AbstractDirtiesContextTestExecutionListener - Before test class: class [TxBasicTest], class annotated with @DirtiesContext [false] with mode [null] 14:42:46.319 [main] DEBUG org.springframework.test.context.support.DependencyInjectionTestExecutionListener - Performing dependency injection for test class hello.springtx.apply.TxBasicTest . ____ _ __ _ _ /\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \ ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \ \\/ ___)| |_)| | | | | || (_| | ) ) ) ) ' |____| .__|_| |_|_| |_\__, | / / / / =========|_|==============|___/=/_/_/_/ :: Spring Boot :: (v3.0.3) 2023-03-01T14:42:46.513+09:00 INFO 10348 --- [ main] hello.springtx.apply.TxBasicTest : Starting TxBasicTest using Java 18 with PID 10348 (started by Mathlife in C:\Users\Mathlife\Desktop\Backend\06. spring-db-2\source\springtx) 2023-03-01T14:42:46.514+09:00 INFO 10348 --- [ main] hello.springtx.apply.TxBasicTest : No active profile set, falling back to 1 default profile: "default" 2023-03-01T14:42:46.750+09:00 INFO 10348 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JPA repositories in DEFAULT mode. 2023-03-01T14:42:46.763+09:00 INFO 10348 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 8 ms. Found 0 JPA repository interfaces. 2023-03-01T14:42:47.004+09:00 INFO 10348 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting... 2023-03-01T14:42:47.143+09:00 INFO 10348 --- [ main] com.zaxxer.hikari.pool.HikariPool : HikariPool-1 - Added connection conn0: url=jdbc:h2:mem:a14918b4-a6d6-4daf-8c5f-4f7baf9d1b32 user=SA 2023-03-01T14:42:47.144+09:00 INFO 10348 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed. 2023-03-01T14:42:47.176+09:00 INFO 10348 --- [ main] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [name: default] 2023-03-01T14:42:47.214+09:00 INFO 10348 --- [ main] org.hibernate.Version : HHH000412: Hibernate ORM core version 6.1.7.Final 2023-03-01T14:42:47.440+09:00 INFO 10348 --- [ main] SQL dialect : HHH000400: Using dialect: org.hibernate.dialect.H2Dialect 2023-03-01T14:42:47.620+09:00 INFO 10348 --- [ main] o.h.e.t.j.p.i.JtaPlatformInitiator : HHH000490: Using JtaPlatform implementation: [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform] 2023-03-01T14:42:47.628+09:00 INFO 10348 --- [ main] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default' 2023-03-01T14:42:47.718+09:00 INFO 10348 --- [ main] hello.springtx.apply.TxBasicTest : Started TxBasicTest in 1.374 seconds (process running for 1.964) 2023-03-01T14:42:47.722+09:00 ERROR 10348 --- [ main] o.s.test.context.TestContextManager : Caught exception while allowing TestExecutionListener [org.springframework.test.context.support.DependencyInjectionTestExecutionListener] to prepare test instance [hello.springtx.apply.TxBasicTest@615e83ac] org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'hello.springtx.apply.TxBasicTest': Unsatisfied dependency expressed through field 'basicService': No qualifying bean of type 'hello.springtx.apply.TxBasicTest$BasicService' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:712) ~[spring-beans-6.0.5.jar:6.0.5] at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:692) ~[spring-beans-6.0.5.jar:6.0.5] at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:133) ~[spring-beans-6.0.5.jar:6.0.5] at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:481) ~[spring-beans-6.0.5.jar:6.0.5] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1398) ~[spring-beans-6.0.5.jar:6.0.5] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireBeanProperties(AbstractAutowireCapableBeanFactory.java:398) ~[spring-beans-6.0.5.jar:6.0.5] at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:142) ~[spring-test-6.0.5.jar:6.0.5] at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:97) ~[spring-test-6.0.5.jar:6.0.5] at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:241) ~[spring-test-6.0.5.jar:6.0.5] at org.springframework.test.context.junit.jupiter.SpringExtension.postProcessTestInstance(SpringExtension.java:138) ~[spring-test-6.0.5.jar:6.0.5] at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$invokeTestInstancePostProcessors$10(ClassBasedTestDescriptor.java:377) ~[junit-jupiter-engine-5.9.2.jar:5.9.2] at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.executeAndMaskThrowable(ClassBasedTestDescriptor.java:382) ~[junit-jupiter-engine-5.9.2.jar:5.9.2] at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$invokeTestInstancePostProcessors$11(ClassBasedTestDescriptor.java:377) ~[junit-jupiter-engine-5.9.2.jar:5.9.2] at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) ~[na:na] at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:179) ~[na:na] at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1625) ~[na:na] at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509) ~[na:na] at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) ~[na:na] at java.base/java.util.stream.StreamSpliterators$WrappingSpliterator.forEachRemaining(StreamSpliterators.java:310) ~[na:na] at java.base/java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:735) ~[na:na] at java.base/java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:734) ~[na:na] at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:762) ~[na:na] at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.invokeTestInstancePostProcessors(ClassBasedTestDescriptor.java:376) ~[junit-jupiter-engine-5.9.2.jar:5.9.2] at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$instantiateAndPostProcessTestInstance$6(ClassBasedTestDescriptor.java:289) ~[junit-jupiter-engine-5.9.2.jar:5.9.2] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.2.jar:1.9.2] at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.instantiateAndPostProcessTestInstance(ClassBasedTestDescriptor.java:288) ~[junit-jupiter-engine-5.9.2.jar:5.9.2] at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$testInstancesProvider$4(ClassBasedTestDescriptor.java:278) ~[junit-jupiter-engine-5.9.2.jar:5.9.2] at java.base/java.util.Optional.orElseGet(Optional.java:364) ~[na:na] at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$testInstancesProvider$5(ClassBasedTestDescriptor.java:277) ~[junit-jupiter-engine-5.9.2.jar:5.9.2] at org.junit.jupiter.engine.execution.TestInstancesProvider.getTestInstances(TestInstancesProvider.java:31) ~[junit-jupiter-engine-5.9.2.jar:5.9.2] at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$prepare$0(TestMethodTestDescriptor.java:105) ~[junit-jupiter-engine-5.9.2.jar:5.9.2] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.2.jar:1.9.2] at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:104) ~[junit-jupiter-engine-5.9.2.jar:5.9.2] at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:68) ~[junit-jupiter-engine-5.9.2.jar:5.9.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$prepare$2(NodeTestTask.java:123) ~[junit-platform-engine-1.9.2.jar:1.9.2] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.2.jar:1.9.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.prepare(NodeTestTask.java:123) ~[junit-platform-engine-1.9.2.jar:1.9.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:90) ~[junit-platform-engine-1.9.2.jar:1.9.2] at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) ~[na:na] at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) ~[junit-platform-engine-1.9.2.jar:1.9.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155) ~[junit-platform-engine-1.9.2.jar:1.9.2] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.2.jar:1.9.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) ~[junit-platform-engine-1.9.2.jar:1.9.2] at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) ~[junit-platform-engine-1.9.2.jar:1.9.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) ~[junit-platform-engine-1.9.2.jar:1.9.2] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.2.jar:1.9.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) ~[junit-platform-engine-1.9.2.jar:1.9.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) ~[junit-platform-engine-1.9.2.jar:1.9.2] at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) ~[na:na] at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) ~[junit-platform-engine-1.9.2.jar:1.9.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155) ~[junit-platform-engine-1.9.2.jar:1.9.2] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.2.jar:1.9.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) ~[junit-platform-engine-1.9.2.jar:1.9.2] at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) ~[junit-platform-engine-1.9.2.jar:1.9.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) ~[junit-platform-engine-1.9.2.jar:1.9.2] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.2.jar:1.9.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) ~[junit-platform-engine-1.9.2.jar:1.9.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) ~[junit-platform-engine-1.9.2.jar:1.9.2] at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35) ~[junit-platform-engine-1.9.2.jar:1.9.2] at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57) ~[junit-platform-engine-1.9.2.jar:1.9.2] at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54) ~[junit-platform-engine-1.9.2.jar:1.9.2] at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:147) ~[junit-platform-launcher-1.9.2.jar:1.9.2] at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:127) ~[junit-platform-launcher-1.9.2.jar:1.9.2] at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:90) ~[junit-platform-launcher-1.9.2.jar:1.9.2] at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:55) ~[junit-platform-launcher-1.9.2.jar:1.9.2] at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:102) ~[junit-platform-launcher-1.9.2.jar:1.9.2] at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:54) ~[junit-platform-launcher-1.9.2.jar:1.9.2] at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114) ~[junit-platform-launcher-1.9.2.jar:1.9.2] at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86) ~[junit-platform-launcher-1.9.2.jar:1.9.2] at org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86) ~[junit-platform-launcher-1.9.2.jar:1.9.2] at org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:53) ~[junit-platform-launcher-1.9.2.jar:1.9.2] at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:57) ~[junit5-rt.jar:na] at com.intellij.rt.junit.IdeaTestRunner$Repeater$1.execute(IdeaTestRunner.java:38) ~[junit-rt.jar:na] at com.intellij.rt.execution.junit.TestsRepeater.repeat(TestsRepeater.java:11) ~[idea_rt.jar:na] at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:35) ~[junit-rt.jar:na] at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:235) ~[junit-rt.jar:na] at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:54) ~[junit-rt.jar:na] Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'hello.springtx.apply.TxBasicTest$BasicService' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1812) ~[spring-beans-6.0.5.jar:6.0.5] at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1371) ~[spring-beans-6.0.5.jar:6.0.5] at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1325) ~[spring-beans-6.0.5.jar:6.0.5] at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:709) ~[spring-beans-6.0.5.jar:6.0.5] ... 76 common frames omitted org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'hello.springtx.apply.TxBasicTest': Unsatisfied dependency expressed through field 'basicService': No qualifying bean of type 'hello.springtx.apply.TxBasicTest$BasicService' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:712) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:692) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:133) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:481) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1398) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireBeanProperties(AbstractAutowireCapableBeanFactory.java:398) at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:142) at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:97) at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:241) at org.springframework.test.context.junit.jupiter.SpringExtension.postProcessTestInstance(SpringExtension.java:138) at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$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:235) at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:54) Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'hello.springtx.apply.TxBasicTest$BasicService' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1812) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1371) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1325) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:709) ... 76 more 2023-03-01T14:42:47.739+09:00 INFO 10348 --- [ionShutdownHook] j.LocalContainerEntityManagerFactoryBean : Closing JPA EntityManagerFactory for persistence unit 'default' 2023-03-01T14:42:47.741+09:00 INFO 10348 --- [ionShutdownHook] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown initiated... 2023-03-01T14:42:47.742+09:00 INFO 10348 --- [ionShutdownHook] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown completed. Process finished with exit code -1 TxBasicTest를 실행하면 위와 같은 에러가 발생합니다.스프링 부트 버전과 자바 버전을 제외한 다른 부분은 똑같이 설정한 것 같은데 뭐가 문제인지를 모르겠습니다. build.gradleplugins { id 'java' id 'org.springframework.boot' version '3.0.3' id 'io.spring.dependency-management' version '1.1.0' } group = 'hello' version = '0.0.1-SNAPSHOT' sourceCompatibility = '17' configurations { compileOnly { extendsFrom annotationProcessor } } repositories { mavenCentral() } dependencies { implementation 'org.springframework.boot:spring-boot-starter-data-jpa' compileOnly 'org.projectlombok:lombok' runtimeOnly 'com.h2database:h2' annotationProcessor 'org.projectlombok:lombok' testImplementation 'org.springframework.boot:spring-boot-starter-test' //테스트에서 lombok 사용 testCompileOnly 'org.projectlombok:lombok' testAnnotationProcessor 'org.projectlombok:lombok' } tasks.named('test') { useJUnitPlatform() }  디렉토리 구조테스트 코드package hello.springtx.apply; import lombok.extern.slf4j.Slf4j; import org.junit.jupiter.api.Test; import org.springframework.aop.support.AopUtils; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.test.context.SpringBootTest; import org.springframework.boot.test.context.TestConfiguration; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.transaction.annotation.Transactional; import org.springframework.transaction.support.TransactionSynchronizationManager; import static org.assertj.core.api.Assertions.*; @Slf4j @SpringBootTest public class TxBasicTest { @Autowired BasicService basicService; @Test void proxyCheck() { log.info("aop class={}", basicService.getClass()); assertThat(AopUtils.isAopProxy(basicService)).isTrue(); } @Test void txTest() { basicService.tx(); basicService.nonTx(); } @TestConfiguration static class TxApplyBasicConfig { @Bean BasicService basicService() { return new BasicService(); } } @Slf4j static class BasicService { @Transactional public void tx() { boolean txActive = TransactionSynchronizationManager.isActualTransactionActive(); log.info("call tx"); log.info("tx active={}", txActive); } public void nonTx() { boolean txActive = TransactionSynchronizationManager.isActualTransactionActive(); log.info("call non tx"); log.info("tx active={}", txActive); } } }

PS C:\Users\user\fooddeliveryapp\front> npm i --force > fooddeliveryapp@0.0.1 postinstall > patch-package patch-package 6.5.1 Applying patches... react-native-image-crop-picker@0.39.0 ✔ up to date, audited 1395 packages in 3s 125 packages are looking for funding run `npm fund` for details found 0 vulnerabilitiespatch-package 적용이 됐다고 하는데 다시 실행해도 사진 저장이 안됩니다또한 option 타고 들어갔을 때 saveToPhotos 검색 결과가 안나왔습니다그럼 적용이 안 된건가요??

안녕하세요 선생님.JdbcTemplate이 있기 때문에 UserController가 인스턴스화되지 않아도 실행된다고 하셨는데 CalculatorController에 JdbcTemplate이 없는데 어떻게 실행되는 건가요?답변 감사드립니다.

안녕하세요 강사님.풀이관련해서 질문인데요. 이분탐색으로 최소 시간을 구하는 것까지 이해했는데요.(ret - 1)에 대해서 다시 구하는게 잘 이해가 안되서요 ㅜ.N명이 모두 탈 수 있는 최소 시간이 ret이고,그보다 1분 전시간에 탈 수 있는 인원을 구해서 N번 아이가 탈 때의 놀이기구 번호를 구하는 거로 이해하면 될까요?

C++이 기대되긴하는데 2월은 힘들다고 하셔서 언제 업로드될지 예정이라도 알 수 있을까요?

안녕하세요~ 강의 마지막 부분에 동적할당 관련하여 이해가 안되는 부분이 있어서 질문 드립니다.sizeof(str5)의 경우 메모리 크기가 4이고 strlen(str5)인 경우 5로 나오는데요. "Hello"는 5byte이고 sizeof(str5)은 4byte인데 str5 변수에 "Hello"가 어떻게 들어갈 수 있는지 궁금합니다

안녕하세요, 이제 막 수업을 시작했습니다. 친절하게 설명해주셔서 문과를 나온 저에게도 어려워보이는 내용들이 쉽게 다가오고 있습니다. 강의에서 나온 예제 뿐만아니라 연습문제를 추가적으로 더 풀어보고 싶은데요, 혹시 연습문제를 더 풀 수 있는 자료들이 추가적으로 더 있을까요?

Session#2 강의 시작부분에 설명해주신 내용에서, SEssion의 receive는 OnRecvCompleted()메서드에 여러 스레드가 동시다발적으로 들어가는 경우는 없다.  라고 하셨는데, 왜 그런지 이해를 못했습니다. ServerCore의 OnAcceptHandler는 콜백함수라서 콜백함수는 다른 스레드가 생겨나서 실행이 된다고 들었던 것 같은데,  그렇다면 두 스레드가 OnAcceptHandler에서 Session.Start()를 해버리면 OnRecvCompleted()메서드를 두 스레드가 동시에 실행할 경우가 생기지 않나요?

- 학습 관련 질문을 남겨주세요. 상세히 작성하면 더 좋아요! - 먼저 유사한 질문이 있었는지 검색해보세요. - 서로 예의를 지키며 존중하는 문화를 만들어가요. - 잠깐! 인프런 서비스 운영 관련 문의는 1:1 문의하기를 이용해주세요.좋은 강의 감사합니다. 공부중에 궁금한게 있어서 글을 적습니다. CustomAuthenticationProvider는 현재 support로 UsernamePasswordToken인지 확인하고 있는데 DaoProvider의 경우에도 같은UsernamePasswordToken으로 검증하고 있던데 이런 경우 제가 등록한 provider가 더 우선권을 갖게 되어서 provider list를 순회 할때 custom provider가 더 먼저 지나가게 됨으로 daoprovider는 거치지 않는 것이 맞는건가요?또한 제가 등록한 custom provider는 parent로 daoprovider를 갖게 되는지도 궁금합니다.