코드를 보면 카운터에는 else if 쪽에 cnt < 100으로 100 이전까지 1씩 증가하도록 하였고 always 카운터에서는 cnt_always == 100-1로 설계하셨는데 왜 cnt_always = 99으로 적지않고 저렇게 적으셨나요? 간혹 저렇게 9를 10-1로 적거나 연산을 넣어서 표기하는 경우를 본것같은데 왜 그렇게 하는지 궁금합니다.

안녕하세요 Lab3 실습을 진행했습니다.이 과정에서 동일하게 했음에도 불구하고 Vitis에서 진행했을때 Vitis Serial Terminal이 무응답입니다.Digilent driver도 설치하고 Vivado driver도 설치해보고 Vivado자체를 최신버전 2023.1로 설치를 해보아도 시리얼 통신이 안됩니다ㅠㅠ그리고 Vitis에서 Launch Hardware를 하면 FPGA보드의 DONE LED가 동시에 켜집니다..또한 Launch Hardware를 실행시킬때 두번에 한번씩은 'could not find fpga device on the board for connection 'local' '라는 오류가 뜹니다..이에 대한 해결법으로 구글링해서 드라이버 설치하라는거 다 해봤는데도 안되네요ㅠㅠ뭐가 문제일까요.이번 실습 뿐 아니라 모든 실습 + 제 프로젝트까지도 무응답입니다..ㅜㅜ

UPROPERTY 로 선언한 PropStudent 와그냥 선언한 NonPropStudent 가 있을때출력된 로그에서 Shutdown 시에 PropStudent 는 유효한 오브젝트NonPropStudent 는 유효하지 않은 오브젝트라고 나왔습니다.이때 UPROPERTY 로 선언하지 않은 NonPropStudent 는 가비지 콜렉터에 의해 관리 받지 않는 것으로 이해를 했는데 관리 받지 않는다는 것이 메모리 회수(Sweep) 시 레퍼런스를 체크하지 않고 바로 지워버린다는 뜻인가요?관리 받지 않으니 아에 지워지지도 않고 누수가 생기는걸까 생각했는데 Sweep 시에 바로 유효하지 않은 오브젝트로 바뀌기에 질문 올려봅니다.

안녕하세요. 강의를 들으면서 코드를 실행하다가 막힌 부분이 있어 질문드립니다.특정 도구에서 사용하면 서버가 실행이 되지 않습니다.인텔리제이 터미널에서 실행한 경우 에러가 발생합니다.PS C:\workplace\user-service> mvn spring-boot:run -Dspring-boot.run.jvmArguments='-Dserver.port=9003' -e[INFO] Error stacktraces are turned on.[INFO] Scanning for projects...[INFO] [INFO] ----------------------< com.example:user-service >----------------------[INFO] Building user-service 0.0.1-SNAPSHOT[INFO] from pom.xml[INFO] --------------------------------[ jar ]---------------------------------[INFO] ------------------------------------------------------------------------[INFO] BUILD FAILURE[INFO] ------------------------------------------------------------------------[INFO] Total time: 0.326 s[INFO] Finished at: 2023-06-27T21:49:08+09:00[INFO] ------------------------------------------------------------------------[ERROR] Unknown lifecycle phase ".run.jvmArguments=-Dserver.port=9003". You must specify a valid lifecycle phase or a goal in the format <plugin-prefix>:<goal> or <plugin-group-id>:<plugin-artifact-id>[:<plugin-version>]:<goal>. Available lifecycle phases are: pre-clean, clean, post-clean, validate, initialize, generate-sources, process-sources, generate-resources, process-resources, compile, process-classes, generate-test-sources, process-test-sources, generate-test-resources, process-test-resources, test-compile, process-test-classes, test, prepare-package, package, pre-integration-test, integration-test, post-integration-test, verify, install, deploy, pre-site, site, post-site, site-deploy. -> [Help 1]org.apache.maven.lifecycle.LifecyclePhaseNotFoundException: Unknown lifecycle phase ".run.jvmArguments=-Dserver.port=9003". You must specify a valid lifecycle phase or a goal in the format <plugin-prefix>:<goal> or <plugin-group-id>:<plugin-artifact-id>[:<plugin-version>]:<goal>. Available lifecycle phases are: pre-clean, clean, post-clean, validate, initialize, generate-sources, process-sources, generate-resources, process-resources, compile, process-classes, generate-test-sources, process-test-sources, generate-test-resources, process-test-resources, test-compile, process-test-classes, test, prepare-package, package, pre-integration-test, integration-test, post-integration-test, verify, install, deploy, pre-site, site, post-site, site-deploy. at org.apache.maven.lifecycle.internal.DefaultLifecycleExecutionPlanCalculator.calculateLifecycleMappings (DefaultLifecycleExecutionPlanCalculator.java:225) at org.apache.maven.lifecycle.internal.DefaultLifecycleExecutionPlanCalculator.calculateMojoExecutions (DefaultLifecycleExecutionPlanCalculator.java:197) at org.apache.maven.lifecycle.internal.DefaultLifecycleExecutionPlanCalculator.calculateExecutionPlan (DefaultLifecycleExecutionPlanCalculator.java:119) at org.apache.maven.lifecycle.internal.DefaultLifecycleExecutionPlanCalculator.calculateExecutionPlan (DefaultLifecycleExecutionPlanCalculator.java:135) at org.apache.maven.lifecycle.internal.builder.BuilderCommon.resolveBuildPlan (BuilderCommon.java:93) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:100) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73) at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53) at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173) at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101) at org.apache.maven.cli.MavenCli.execute (MavenCli.java:906) at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283) at org.apache.maven.cli.MavenCli.main (MavenCli.java:206) at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method) at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62) at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke (Method.java:566) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283) at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407) at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)[ERROR][ERROR] Re-run Maven using the -X switch to enable full debug logging.[ERROR][ERROR] For more information about the errors and possible solutions, please read the following articles:[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/LifecyclePhaseNotFoundException PowerShell에서 실행한 경우 에러가 발생합니다.PS C:\workplace\user-service> java -jar -Dserver.port=9004 .\target\user-service-0.0.1-SNAPSHOT.jarError: Unable to access jarfile .port=9004※ PowerShell에서 실행한 명령어를 명령 프롬프트에서 실행하면 정상작동됩니다.감사합니다.

안녕하세요 강의를 듣던 중 질문이 있습니다.섹션 10. 세마포어, 소스코드 분석 - 부트의 원리 강의에서 6:42 초 쯤에보드에 버튼을 누르면 Startup 폴더에 있는 startup_stm32f103rbtx.s 파일에.word EXTI15_10_IRQHandler 라는 이 인터럽트 핸들러 부터 실행된다고 하셨는데인터럽트 벡터 테이블 안에서 어떤 인터럽트 핸들러부터 실행되는지는 어떻게 알 수 있는건가요?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.

강의 [10:03]에 const a: A 부분의 A가 인스턴스라고 말씀 해주셨는데 a변수에 클래스 그 자체를 넣어도 할당이 됩니다.// type = A const a: A = new A(); // Success const a2: A = A; // Success인스턴스 ⊂ 클래스 의 관계인데 이게 어떻게 가능한지 잘 이해가 안갑니다.. // type = typeof A const b: typeof A = new A(); // Fail const b2: typeof A = A; // Success

안녕하세요, 탐색보고서 문의드립니다. 전자상거래 세팅 후, "수익 창출 > 전자상거래 구매 보고서"에서는 구매한 상품 개수나 상품 수익 등의 수치는 잘 보이고 있으나, 탐색 보고서 "자유양식"에서는 전자상거래 관련 데이터가 보이질 않습니다.(1) 수치 0으로 보이는 측정 항목 : 총 수익, 사용자당 평균 구매 수익, 전자상거래 수익, 제품 수익, 구매 수익, 구매자당 거래 수, 이벤트 수익(2) 수치가 보이는 측정 항목 : 전체 구매자 수, 전자상거래 구매, 수량, 구매 등어떻게 해야 자유양식 탐색 보고서에서도 전자상거래 수익을 볼 수 있을까요? 답변 부탁드립니다ㅠㅠ!

인터넷은 패킷교환 방식으로 통신을 한다고 알고있습니다. 이유는 회선교환방식은 A와 B가 통신을 하는데 끊어지는데 문제가 발생하면 안되기 때문이라고 알고있습니다. 근데 패킷교환방식도 마찬가지 아닌가요? 무슨말이냐 하면1개의 회선에 여러개의 패킷으로 쪼개서 여러사용자가 이용한다고 들었습니다. 근데 이런방식 또한 회선이 끊어지면 통신에 문제가 발생하지 않나요??  osi7계층에서 1 2 3 계층은 장비간의 연결 4 5 6 7 간에는 어플간의 통신이라고 알고있습니다. 그럼 만약에A장비와 B장비가 프로그램이 내장되지 않는 예전 전화같은 장비라면 3계층까지만 필요하고 4 5 6 7 계층은 필요없나요??

안녕하세요.DiscriminatorColumn, DiscriminatorValue 를 이용하여 DTYPE을 자동으로 insert하는 기능이 참 편리해보이는데요.만약에 예시에 나온 Item의 관리가 객체 이름이 아닌 일련의 문자열 ItemCode로 이루어진다면, 그리고 ItemCode를 DB 등에 따로 저장하여 사용하고 있다면 DiscriminatorValue에 그 값을 넣어줄 수 있는 방법이 있을까요?만약 DB에서 조회하는 것이 불가능하다면 DB가 아니라 코드로 정의를 해놓는다면(Enum등으로) 참조값을 넣어줄 수는 있을까요?감사합니다.  

[질문 템플릿]1. 강의 내용과 관련된 질문인가요? (예)2. 인프런의 질문 게시판과 자주 하는 질문에 없는 내용인가요? (예)3. 질문 잘하기 메뉴얼을 읽어보셨나요? (예[질문 내용]여기에 질문 내용을 남겨주세요./Library/Java/JavaVirtualMachines/jdk-17.jdk/Contents/Home/bin/java -ea -Didea.test.cyclic.buffer.size=1048576 -javaagent:/Applications/IntelliJ IDEA CE.app/Contents/lib/idea_rt.jar=60083:/Applications/IntelliJ IDEA CE.app/Contents/bin -Dfile.encoding=UTF-8 -classpath /Users/anshinyoung/.m2/repository/org/junit/platform/junit-platform-launcher/1.9.3/junit-platform-launcher-1.9.3.jar:/Users/anshinyoung/.m2/repository/org/junit/platform/junit-platform-engine/1.9.3/junit-platform-engine-1.9.3.jar:/Users/anshinyoung/.m2/repository/org/opentest4j/opentest4j/1.2.0/opentest4j-1.2.0.jar:/Users/anshinyoung/.m2/repository/org/junit/platform/junit-platform-commons/1.9.3/junit-platform-commons-1.9.3.jar:/Users/anshinyoung/.m2/repository/org/apiguardian/apiguardian-api/1.1.2/apiguardian-api-1.1.2.jar:/Applications/IntelliJ IDEA CE.app/Contents/lib/idea_rt.jar:/Applications/IntelliJ IDEA CE.app/Contents/plugins/junit/lib/junit5-rt.jar:/Applications/IntelliJ IDEA CE.app/Contents/plugins/junit/lib/junit-rt.jar:/Users/anshinyoung/study/hello-spring/out/test/classes:/Users/anshinyoung/study/hello-spring/out/production/classes:/Users/anshinyoung/study/hello-spring/out/production/resources:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-starter-thymeleaf/3.0.8/efd3c82f81571dae1ca77ead5980571e29f351e1/spring-boot-starter-thymeleaf-3.0.8.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-starter-web/3.0.8/e409cbbbd966fe1cf3912c15dd68701e0de28967/spring-boot-starter-web-3.0.8.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-starter-jdbc/3.0.8/d2b5368d2e7b7d2952144f1507e67822889b8adf/spring-boot-starter-jdbc-3.0.8.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-starter-test/3.0.8/b024f428e48d472d9d7bbeb02e6fb11b531f7437/spring-boot-starter-test-3.0.8.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-starter/3.0.8/7bee4f12a569e53ddb66814929bb1c906daf9ab3/spring-boot-starter-3.0.8.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/org.thymeleaf/thymeleaf-spring6/3.1.1.RELEASE/deb52ef921a4ac5132fedb7ebfc2bc1dad4382b3/thymeleaf-spring6-3.1.1.RELEASE.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-starter-json/3.0.8/83468643e2a4f5578d2261781e339d38cecfcfa7/spring-boot-starter-json-3.0.8.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-starter-tomcat/3.0.8/bc5232341b34667da73e0f96889109bada8ed17f/spring-boot-starter-tomcat-3.0.8.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/org.springframework/spring-webmvc/6.0.10/af3f040747f4bfbcdb96140f8c9d252d3a6a4ef1/spring-webmvc-6.0.10.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/org.springframework/spring-web/6.0.10/e61defa7908bf7a499f000dab8ef7691c2aa75c1/spring-web-6.0.10.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/com.zaxxer/HikariCP/5.0.1/a74c7f0a37046846e88d54f7cb6ea6d565c65f9c/HikariCP-5.0.1.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/org.springframework/spring-jdbc/6.0.10/5179c98c5eba511cdd31852d1f74063aa17bf3da/spring-jdbc-6.0.10.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-test-autoconfigure/3.0.8/9e805d95c802d8db8ac0ea298651aa7d906e040b/spring-boot-test-autoconfigure-3.0.8.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-test/3.0.8/31e2dfece627794ef8f8ac51941ca05e87a331e6/spring-boot-test-3.0.8.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/com.jayway.jsonpath/json-path/2.7.0/f9d7d9659f2694e61142046ff8a216c047f263e8/json-path-2.7.0.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/jakarta.xml.bind/jakarta.xml.bind-api/4.0.0/bbb399208d288b15ec101fa4fcfc4bd77cedc97a/jakarta.xml.bind-api-4.0.0.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/org.assertj/assertj-core/3.23.1/d2bb60570f5b3d7ffa8f8000118c9c07b86eca93/assertj-core-3.23.1.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/org.hamcrest/hamcrest/2.2/1820c0968dba3a11a1b30669bb1f01978a91dedc/hamcrest-2.2.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/org.junit.jupiter/junit-jupiter/5.9.3/72e840501e1550e9799c9a5cc9483d7d6b29e0ba/junit-jupiter-5.9.3.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/org.mockito/mockito-junit-jupiter/4.8.1/e393aa62eca2244a535b03842843f2f199343d1f/mockito-junit-jupiter-4.8.1.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/org.mockito/mockito-core/4.8.1/d8eb9dec8747d08645347bb8c69088ac83197975/mockito-core-4.8.1.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/org.skyscreamer/jsonassert/1.5.1/6d842d0faf4cf6725c509a5e5347d319ee0431c3/jsonassert-1.5.1.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/org.springframework/spring-test/6.0.10/8773ebcd0e6822e2e5a816752cbe2419d7b1b4b4/spring-test-6.0.10.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/org.springframework/spring-core/6.0.10/889aa214b6607763ddeb6bd391d682cd71681b36/spring-core-6.0.10.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/org.xmlunit/xmlunit-core/2.9.1/e5833662d9a1279a37da3ef6f62a1da29fcd68c4/xmlunit-core-2.9.1.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-autoconfigure/3.0.8/175465e711e214be7d0ae7e14ecff1235617bde7/spring-boot-autoconfigure-3.0.8.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot/3.0.8/9eb8dca474e0194fabb44c2e3c97aba943f5fa68/spring-boot-3.0.8.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-starter-logging/3.0.8/2dd1112cc3c1ee62ab86aceb99dccfda6e82d5dd/spring-boot-starter-logging-3.0.8.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/jakarta.annotation/jaka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ackson-annotations/2.14.3/b49701acb02b8e95ae1967821cfbafc220cf5795/jackson-annotations-2.14.3.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.core/jackson-core/2.14.3/4fa101f81504ed6811bf1823270adb51a9b45ff3/jackson-core-2.14.3.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/io.micrometer/micrometer-commons/1.10.8/321a2661884620ddcc30af8adca6534cb706970b/micrometer-commons-1.10.8.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/net.minidev/accessors-smart/2.4.11/245ceca7bdf3190fbb977045c852d5f3c8efece1/accessors-smart-2.4.11.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/org.apiguardian/apiguardian-api/1.1.2/a231e0d844d2721b0fa1b238006d15c6ded6842a/apiguardian-api-1.1.2.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/org.junit.platform/junit-platform-commons/1.9.3/36b2e26a90c41603be7f0094bee80e3f8a2cd4d4/junit-platform-commons-1.9.3.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/org.opentest4j/opentest4j/1.2.0/28c11eb91f9b6d8e200631d46e20a7f407f2a046/opentest4j-1.2.0.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/ch.qos.logback/logback-core/1.4.8/3fba9c105e0efc5ffdcda701379687917d5286f7/logback-core-1.4.8.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/org.apache.logging.log4j/log4j-api/2.19.0/ea1b37f38c327596b216542bc636cfdc0b8036fa/log4j-api-2.19.0.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/org.ow2.asm/asm/9.3/8e6300ef51c1d801a7ed62d07cd221aca3a90640/asm-9.3.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/com.h2database/h2/2.1.214/d5c2005c9e3279201e12d4776c948578b16bf8b2/h2-2.1.214.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/org.junit.jupiter/junit-jupiter-engine/5.9.3/355322b03bf39306a183162cd06626c206f0286b/junit-jupiter-engine-5.9.3.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/org.objenesis/objenesis/3.2/7fadf57620c8b8abdf7519533e5527367cb51f09/objenesis-3.2.jar:/Users/anshinyoung/.gradle/caches/modules-2/files-2.1/org.junit.platform/junit-platform-engine/1.9.3/8616734a190f8d307376aeb7353dba0a2c037a09/junit-platform-engine-1.9.3.jar com.intellij.rt.junit.JUnitStarter -ideVersion5 -junit5 hello.hellospring.service.MemberServiceIntegrationTest,회원가입20:50:58.916 [main] DEBUG org.springframework.boot.test.context.SpringBootTestContextBootstrapper -- Neither @ContextConfiguration nor @ContextHierarchy found for test class [MemberServiceIntegrationTest]: using SpringBootContextLoader20:50:58.918 [main] DEBUG org.springframework.test.context.support.AbstractContextLoader -- Could not detect default resource locations for test class [hello.hellospring.service.MemberServiceIntegrationTest]: no resource found for suffixes {-context.xml, Context.groovy}.20:50:58.918 [main] INFO org.springframework.test.context.support.AnnotationConfigContextLoaderUtils -- Could not detect default configuration classes for test class [hello.hellospring.service.MemberServiceIntegrationTest]: MemberServiceIntegrationTest does not declare any static, non-private, non-final, nested classes annotated with @Configuration.20:50:58.927 [main] DEBUG org.springframework.boot.test.context.SpringBootTestContextBootstrapper -- Using ContextCustomizers for test class [MemberServiceIntegrationTest]: [DisableObservabilityContextCustomizer, PropertyMappingContextCustomizer, Customizer, ExcludeFilterContextCustomizer, DuplicateJsonObjectContextCustomizer, MockitoContextCustomizer, TestRestTemplateContextCustomizer]20:50:58.959 [main] DEBUG org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider -- Identified candidate component class: file [/Users/anshinyoung/study/hello-spring/out/production/classes/hello/hellospring/HelloSpringApplication.class]20:50:58.960 [main] INFO org.springframework.boot.test.context.SpringBootTestContextBootstrapper -- Found @SpringBootConfiguration hello.hellospring.HelloSpringApplication for test class hello.hellospring.service.MemberServiceIntegrationTest20:50:58.998 [main] DEBUG org.springframework.test.context.util.TestContextSpringFactoriesUtils -- Could not load TestExecutionListener [org.springframework.test.context.observation.MicrometerObservationRegistryTestExecutionListener]. Specify custom TestExecutionListener classes or make the default TestExecutionListener classes available.java.lang.ExceptionInInitializerError: null at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:77) at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499) at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:480) at org.springframework.core.io.support.SpringFactoriesLoader$FactoryInstantiator.instantiate(SpringFactoriesLoader.java:382) at org.springframework.core.io.support.SpringFactoriesLoader.instantiateFactory(SpringFactoriesLoader.java:228) at org.springframework.core.io.support.SpringFactoriesLoader.load(SpringFactoriesLoader.java:206) at org.springframework.core.io.support.SpringFactoriesLoader.load(SpringFactoriesLoader.java:178) at org.springframework.test.context.util.TestContextSpringFactoriesUtils.loadFactoryImplementations(TestContextSpringFactoriesUtils.java:71) at org.springframework.test.context.support.AbstractTestContextBootstrapper.getDefaultTestExecutionListeners(AbstractTestContextBootstrapper.java:198) at org.springframework.boot.test.context.SpringBootTestContextBootstrapper.getDefaultTestExecutionListeners(SpringBootTestContextBootstrapper.java:128) at org.springframework.test.context.support.AbstractTestContextBootstrapper.getTestExecutionListeners(AbstractTestContextBootstrapper.java:128) at org.springframework.test.context.TestContextManager.<init>(TestContextManager.java:131) at org.springframework.test.context.TestContextManager.<init>(TestContextManager.java:113) at org.junit.jupiter.engine.execution.ExtensionValuesStore.lambda$getOrComputeIfAbsent$4(ExtensionValuesStore.java:86) at org.junit.jupiter.engine.execution.ExtensionValuesStore$MemoizingSupplier.computeValue(ExtensionValuesStore.java:223) at org.junit.jupiter.engine.execution.ExtensionValuesStore$MemoizingSupplier.get(ExtensionValuesStore.java:211) at org.junit.jupiter.engine.execution.ExtensionValuesStore$StoredValue.evaluate(ExtensionValuesStore.java:191) at org.junit.jupiter.engine.execution.ExtensionValuesStore$StoredValue.access$100(ExtensionValuesStore.java:171) at org.junit.jupiter.engine.execution.ExtensionValuesStore.getOrComputeIfAbsent(ExtensionValuesStore.java:89) at org.junit.jupiter.engine.execution.ExtensionValuesStore.getOrComputeIfAbsent(ExtensionValuesStore.java:93) at org.junit.jupiter.engine.execution.NamespaceAwareStore.getOrComputeIfAbsent(NamespaceAwareStore.java:61) at org.springframework.test.context.junit.jupiter.SpringExtension.getTestContextManager(SpringExtension.java:294) at org.springframework.test.context.junit.jupiter.SpringExtension.beforeAll(SpringExtension.java:113) at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$invokeBeforeAllCallbacks$12(ClassBasedTestDescriptor.java:395) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.invokeBeforeAllCallbacks(ClassBasedTestDescriptor.java:395) at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.before(ClassBasedTestDescriptor.java:211) at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.before(ClassBasedTestDescriptor.java:84) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:148) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$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: MicrometerObservationRegistryTestExecutionListener requires micrometer-observation 1.10.8 or higher at org.springframework.test.context.observation.MicrometerObservationRegistryTestExecutionListener.<clinit>(MicrometerObservationRegistryTestExecutionListener.java:80) ... 67 common frames omittedCaused by: java.lang.NoClassDefFoundError: io/micrometer/context/ThreadLocalAccessor at java.base/java.lang.ClassLoader.defineClass1(Native Method) at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1012) at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:150) at java.base/jdk.internal.loader.BuiltinClassLoader.defineClass(BuiltinClassLoader.java:862) at java.base/jdk.internal.loader.BuiltinClassLoader.findClassOnClassPathOrNull(BuiltinClassLoader.java:760) at java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:681) at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:639) at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:520) at java.base/java.lang.Class.forName0(Native Method) at java.base/java.lang.Class.forName(Class.java:467) at org.springframework.test.context.observation.MicrometerObservationRegistryTestExecutionListener.<clinit>(MicrometerObservationRegistryTestExecutionListener.java:76) ... 67 common frames omittedCaused by: java.lang.ClassNotFoundException: io.micrometer.context.ThreadLocalAccessor at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641) at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:520) ... 79 common frames omitted20:50:59.002 [main] DEBUG org.springframework.boot.test.context.SpringBootTestContextBootstrapper -- Using TestExecutionListeners for test class [MemberServiceIntegrationTest]: [ServletTestExecutionListener, DirtiesContextBeforeModesTestExecutionListener, ApplicationEventsTestExecutionListener, MockitoTestExecutionListener, DependencyInjectionTestExecutionListener, DirtiesContextTestExecutionListener, TransactionalTestExecutionListener, SqlScriptsTestExecutionListener, EventPublishingTestExecutionListener, RestDocsTestExecutionListener, MockRestServiceServerResetTestExecutionListener, MockMvcPrintOnlyOnFailureTestExecutionListener, WebDriverTestExecutionListener, MockWebServiceServerTestExecutionListener, ResetMocksTestExecutionListener]20:50:59.002 [main] DEBUG org.springframework.test.context.support.DirtiesContextBeforeModesTestExecutionListener -- Before test class: class [MemberServiceIntegrationTest], class annotated with @DirtiesContext [false] with mode [null] . ____ _ /\\ / ___'_ __ (_)_ _ \ \ \ \( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \ \\/ ___)| |_)| | | | | || (_| | ) ) ) ) ' |____| .__|_| |_|_| |_\__, | / / / / =========|_|==============|___/=/_/_/_/ :: Spring Boot :: (v3.0.8)2023-06-27T20:50:59.103+09:00 INFO 15106 --- [ main] h.h.s.MemberServiceIntegrationTest : Starting MemberServiceIntegrationTest using Java 17.0.7 with PID 15106 (started by anshinyoung in /Users/anshinyoung/study/hello-spring)2023-06-27T20:50:59.103+09:00 INFO 15106 --- [ main] h.h.s.MemberServiceIntegrationTest : No active profile set, falling back to 1 default profile: "default"2023-06-27T20:50:59.502+09:00 INFO 15106 --- [ main] o.s.b.a.w.s.WelcomePageHandlerMapping : Adding welcome page: class path resource [static/index.html]2023-06-27T20:50:59.579+09:00 INFO 15106 --- [ main] h.h.s.MemberServiceIntegrationTest : Started MemberServiceIntegrationTest in 0.562 seconds (process running for 0.914)2023-06-27T20:50:59.589+09:00 INFO 15106 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting...2023-06-27T20:51:01.663+09:00 ERROR 15106 --- [ main] com.zaxxer.hikari.pool.HikariPool : HikariPool-1 - Exception during pool initialization.org.h2.jdbc.JdbcSQLInvalidAuthorizationSpecException: Wrong user name or password [28000-214] at org.h2.message.DbException.getJdbcSQLException(DbException.java:510) ~[h2-2.1.214.jar:2.1.214] at org.h2.engine.SessionRemote.readException(SessionRemote.java:637) ~[h2-2.1.214.jar:2.1.214] at org.h2.engine.SessionRemote.done(SessionRemote.java:606) ~[h2-2.1.214.jar:2.1.214] at org.h2.engine.SessionRemote.initTransfer(SessionRemote.java:163) ~[h2-2.1.214.jar:2.1.214] at org.h2.engine.SessionRemote.connectServer(SessionRemote.java:433) ~[h2-2.1.214.jar:2.1.214] at org.h2.engine.SessionRemote.connectEmbeddedOrServer(SessionRemote.java:325) ~[h2-2.1.214.jar:2.1.214] at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:122) ~[h2-2.1.214.jar:2.1.214] at org.h2.Driver.connect(Driver.java:59) ~[h2-2.1.214.jar:2.1.214] at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138) ~[HikariCP-5.0.1.jar:na] at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:359) ~[HikariCP-5.0.1.jar:na] at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:201) ~[HikariCP-5.0.1.jar:na] at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:470) ~[HikariCP-5.0.1.jar:na] at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:561) ~[HikariCP-5.0.1.jar:na] at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:100) ~[HikariCP-5.0.1.jar:na] at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) ~[HikariCP-5.0.1.jar:na] at org.springframework.jdbc.datasource.DataSourceTransactionManager.doBegin(DataSourceTransactionManager.java:269) ~[spring-jdbc-6.0.10.jar:6.0.10] at org.springframework.transaction.support.AbstractPlatformTransactionManager.startTransaction(AbstractPlatformTransactionManager.java:400) ~[spring-tx-6.0.10.jar:6.0.10] at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:373) ~[spring-tx-6.0.10.jar:6.0.10] at org.springframework.test.context.transaction.TransactionContext.startTransaction(TransactionContext.java:103) ~[spring-test-6.0.10.jar:6.0.10] at org.springframework.test.context.transaction.TransactionalTestExecutionListener.beforeTestMethod(TransactionalTestExecutionListener.java:235) ~[spring-test-6.0.10.jar:6.0.10] at org.springframework.test.context.TestContextManager.beforeTestMethod(TestContextManager.java:288) ~[spring-test-6.0.10.jar:6.0.10] at org.springframework.test.context.junit.jupiter.SpringExtension.beforeEach(SpringExtension.java:174) ~[spring-test-6.0.10.jar:6.0.10] at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeBeforeEachCallbacks$2(TestMethodTestDescriptor.java:166) ~[junit-jupiter-engine-5.9.3.jar:5.9.3] at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeBeforeMethodsOrCallbacksUntilExceptionOccurs$6(TestMethodTestDescriptor.java:202) ~[junit-jupiter-engine-5.9.3.jar:5.9.3] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeBeforeMethodsOrCallbacksUntilExceptionOccurs(TestMethodTestDescriptor.java:202) ~[junit-jupiter-engine-5.9.3.jar:5.9.3] at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeBeforeEachCallbacks(TestMethodTestDescriptor.java:165) ~[junit-jupiter-engine-5.9.3.jar:5.9.3] at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:132) ~[junit-jupiter-engine-5.9.3.jar:5.9.3] at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:68) ~[junit-jupiter-engine-5.9.3.jar:5.9.3] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:151) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) ~[junit-platform-engine-1.9.3.jar:1.9.3] at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) ~[na:na] at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) ~[junit-platform-engine-1.9.3.jar:1.9.3] at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) ~[na:na] at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:147) ~[junit-platform-launcher-1.9.3.jar:1.9.3] at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:127) ~[junit-platform-launcher-1.9.3.jar:1.9.3] at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:90) ~[junit-platform-launcher-1.9.3.jar:1.9.3] at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:55) ~[junit-platform-launcher-1.9.3.jar:1.9.3] at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:102) ~[junit-platform-launcher-1.9.3.jar:1.9.3] at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:54) ~[junit-platform-launcher-1.9.3.jar:1.9.3] at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114) ~[junit-platform-launcher-1.9.3.jar:1.9.3] at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86) ~[junit-platform-launcher-1.9.3.jar:1.9.3] at org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86) ~[junit-platform-launcher-1.9.3.jar:1.9.3] at org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:53) ~[junit-platform-launcher-1.9.3.jar:1.9.3] 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:232) ~[junit-rt.jar:na] at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:55) ~[junit-rt.jar:na]2023-06-27T20:51:01.672+09:00 WARN 15106 --- [ main] o.s.test.context.TestContextManager : Caught exception while invoking 'beforeTestMethod' callback on TestExecutionListener [org.springframework.test.context.transaction.TransactionalTestExecutionListener] for test method [public void hello.hellospring.service.MemberServiceIntegrationTest.회원가입() throws java.lang.Exception] and test instance [hello.hellospring.service.MemberServiceIntegrationTest@67536ae0]org.springframework.transaction.CannotCreateTransactionException: Could not open JDBC Connection for transaction at org.springframework.jdbc.datasource.DataSourceTransactionManager.doBegin(DataSourceTransactionManager.java:313) ~[spring-jdbc-6.0.10.jar:6.0.10] at org.springframework.transaction.support.AbstractPlatformTransactionManager.startTransaction(AbstractPlatformTransactionManager.java:400) ~[spring-tx-6.0.10.jar:6.0.10] at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:373) ~[spring-tx-6.0.10.jar:6.0.10] at org.springframework.test.context.transaction.TransactionContext.startTransaction(TransactionContext.java:103) ~[spring-test-6.0.10.jar:6.0.10] at org.springframework.test.context.transaction.TransactionalTestExecutionListener.beforeTestMethod(TransactionalTestExecutionListener.java:235) ~[spring-test-6.0.10.jar:6.0.10] at org.springframework.test.context.TestContextManager.beforeTestMethod(TestContextManager.java:288) ~[spring-test-6.0.10.jar:6.0.10] at org.springframework.test.context.junit.jupiter.SpringExtension.beforeEach(SpringExtension.java:174) ~[spring-test-6.0.10.jar:6.0.10] at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeBeforeEachCallbacks$2(TestMethodTestDescriptor.java:166) ~[junit-jupiter-engine-5.9.3.jar:5.9.3] at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeBeforeMethodsOrCallbacksUntilExceptionOccurs$6(TestMethodTestDescriptor.java:202) ~[junit-jupiter-engine-5.9.3.jar:5.9.3] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeBeforeMethodsOrCallbacksUntilExceptionOccurs(TestMethodTestDescriptor.java:202) ~[junit-jupiter-engine-5.9.3.jar:5.9.3] at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeBeforeEachCallbacks(TestMethodTestDescriptor.java:165) ~[junit-jupiter-engine-5.9.3.jar:5.9.3] at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:132) ~[junit-jupiter-engine-5.9.3.jar:5.9.3] at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:68) ~[junit-jupiter-engine-5.9.3.jar:5.9.3] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:151) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) ~[junit-platform-engine-1.9.3.jar:1.9.3] at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) ~[na:na] at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) ~[junit-platform-engine-1.9.3.jar:1.9.3] at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) ~[na:na] at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54) ~[junit-platform-engine-1.9.3.jar:1.9.3] at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:147) ~[junit-platform-launcher-1.9.3.jar:1.9.3] at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:127) ~[junit-platform-launcher-1.9.3.jar:1.9.3] at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:90) ~[junit-platform-launcher-1.9.3.jar:1.9.3] at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:55) ~[junit-platform-launcher-1.9.3.jar:1.9.3] at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:102) ~[junit-platform-launcher-1.9.3.jar:1.9.3] at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:54) ~[junit-platform-launcher-1.9.3.jar:1.9.3] at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114) ~[junit-platform-launcher-1.9.3.jar:1.9.3] at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86) ~[junit-platform-launcher-1.9.3.jar:1.9.3] at org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86) ~[junit-platform-launcher-1.9.3.jar:1.9.3] at org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:53) ~[junit-platform-launcher-1.9.3.jar:1.9.3] 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:232) ~[junit-rt.jar:na] at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:55) ~[junit-rt.jar:na]Caused by: org.h2.jdbc.JdbcSQLInvalidAuthorizationSpecException: Wrong user name or password [28000-214] at org.h2.message.DbException.getJdbcSQLException(DbException.java:510) ~[h2-2.1.214.jar:2.1.214] at org.h2.engine.SessionRemote.readException(SessionRemote.java:637) ~[h2-2.1.214.jar:2.1.214] at org.h2.engine.SessionRemote.done(SessionRemote.java:606) ~[h2-2.1.214.jar:2.1.214] at org.h2.engine.SessionRemote.initTransfer(SessionRemote.java:163) ~[h2-2.1.214.jar:2.1.214] at org.h2.engine.SessionRemote.connectServer(SessionRemote.java:433) ~[h2-2.1.214.jar:2.1.214] at org.h2.engine.SessionRemote.connectEmbeddedOrServer(SessionRemote.java:325) ~[h2-2.1.214.jar:2.1.214] at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:122) ~[h2-2.1.214.jar:2.1.214] at org.h2.Driver.connect(Driver.java:59) ~[h2-2.1.214.jar:2.1.214] at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138) ~[HikariCP-5.0.1.jar:na] at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:359) ~[HikariCP-5.0.1.jar:na] at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:201) ~[HikariCP-5.0.1.jar:na] at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:470) ~[HikariCP-5.0.1.jar:na] at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:561) ~[HikariCP-5.0.1.jar:na] at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:100) ~[HikariCP-5.0.1.jar:na] at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) ~[HikariCP-5.0.1.jar:na] at org.springframework.jdbc.datasource.DataSourceTransactionManager.doBegin(DataSourceTransactionManager.java:269) ~[spring-jdbc-6.0.10.jar:6.0.10] ... 60 common frames omittedorg.springframework.transaction.CannotCreateTransactionException: Could not open JDBC Connection for transaction at org.springframework.jdbc.datasource.DataSourceTransactionManager.doBegin(DataSourceTransactionManager.java:313) at org.springframework.transaction.support.AbstractPlatformTransactionManager.startTransaction(AbstractPlatformTransactionManager.java:400) at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:373) at org.springframework.test.context.transaction.TransactionContext.startTransaction(TransactionContext.java:103) at org.springframework.test.context.transaction.TransactionalTestExecutionListener.beforeTestMethod(TransactionalTestExecutionListener.java:235) at org.springframework.test.context.TestContextManager.beforeTestMethod(TestContextManager.java:288) at org.springframework.test.context.junit.jupiter.SpringExtension.beforeEach(SpringExtension.java:174) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeBeforeEachCallbacks$2(TestMethodTestDescriptor.java:166) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeBeforeMethodsOrCallbacksUntilExceptionOccurs$6(TestMethodTestDescriptor.java:202) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeBeforeMethodsOrCallbacksUntilExceptionOccurs(TestMethodTestDescriptor.java:202) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeBeforeEachCallbacks(TestMethodTestDescriptor.java:165) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:132) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:68) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:151) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$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: org.h2.jdbc.JdbcSQLInvalidAuthorizationSpecException: Wrong user name or password [28000-200] at org.h2.message.DbException.getJdbcSQLException(DbException.java:461) at org.h2.message.DbException.getJdbcSQLException(DbException.java:429) at org.h2.message.DbException.get(DbException.java:205) at org.h2.message.DbException.get(DbException.java:181) at org.h2.message.DbException.get(DbException.java:170) at org.h2.engine.Engine.validateUserAndPassword(Engine.java:357) at org.h2.engine.Engine.createSessionAndValidate(Engine.java:176) at org.h2.engine.Engine.createSession(Engine.java:166) at org.h2.server.TcpServerThread.run(TcpServerThread.java:168) at java.base/java.lang.Thread.run(Thread.java:1583) at org.h2.message.DbException.getJdbcSQLException(DbException.java:510) at org.h2.engine.SessionRemote.readException(SessionRemote.java:637) at org.h2.engine.SessionRemote.done(SessionRemote.java:606) at org.h2.engine.SessionRemote.initTransfer(SessionRemote.java:163) at org.h2.engine.SessionRemote.connectServer(SessionRemote.java:433) at org.h2.engine.SessionRemote.connectEmbeddedOrServer(SessionRemote.java:325) at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:122) at org.h2.Driver.connect(Driver.java:59) at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138) at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:359) at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:201) at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:470) at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:561) at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:100) at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) at org.springframework.jdbc.datasource.DataSourceTransactionManager.doBegin(DataSourceTransactionManager.java:269) ... 60 moreProcess finished with exit code 255강의 내용도 따라하고 h2도 버전을 맞췄는데 왜 jdbc연동이 안된다고 뜰까요? 해결방법이 뭘까요?

Where 절에서 is 또는 = 을 쓰는 기준과 뒤에 나오는 내용에도 언제 ' ' 를 쓰는지 정확하게 구분해주실 수 있으실까요?

노션 보고 따라 했는데 이런식의 에러가 나와요 ......ㅠ

리스트는 여러가지 데이터 타입을 담을 수 있다고 하셨고 0:28에서는 리스트를 다른 언어에서는 배열이라고 한다고 하셨어요.그런데 엄밀히 따지면 배열은 여러 자료형을 담을 수 없으니까 배열과는 다른 거 아닌가요?

exports.apiLimiter = async (req, res, next) => { let user; if (res.locals.decoded) { user = await User.findOne({ where: { id: res.locals.decoded.id } }); } rateLimit({ widowMs: 60 * 1000, max: user?.type === "premium" ? 10 : 1, handler(req, res) { res.status(this.statusCode).json({ code: this.statusCode, message: "1분에 열 번만 요청 할 수 있습니다...", }); }, })(req, res, next); }; Api 프리미엄고객만 1분에 열번만요청할수있게 미들웨어 확장패턴으로만들었습니다 그런데 localhost:4000/myposts 접속해서 10 번이상새로고침해도 api가 제한이 안되고 제가작성한 게시글 목록만 뜹니다

영상대로 변수, 트리거, 태그까지 설정해서 미리보기 했는데 'GA4_비회원구매버튼클릭'이 Tags Not Fired에서 Tags Fired로 이동하지 않습니다ㅠㅠ GA4 이벤트 상에서도 찍히는 게 없고요. 어떤 부분을 확인해야 할까요?

<!DOCTYPE html> <html lang="ko"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>A타입</title> <link rel="stylesheet" href="css/style.css"> </head> <body> <div class="container"> <header> <div class="header-logo"></div> <div class="navi"> <ul class="menu"> <li> <a href="#none">sub-menu1</a> <div class="sub-menu"> <a href="#none">sub-menu1</a> <a href="#none">sub-menu1</a> <a href="#none">sub-menu1</a> <a href="#none">sub-menu1</a> </div> </li> <li> <a href="#none">sub-menu2</a> <div class="sub-menu"> <a href="#none">sub-menu2</a> <a href="#none">sub-menu2</a> <a href="#none">sub-menu2</a> <a href="#none">sub-menu2</a> </div> </li> <li> <a href="#none">sub-menu3</a> <div class="sub-menu"> <a href="#none">sub-menu3</a> <a href="#none">sub-menu3</a> <a href="#none">sub-menu3</a> <a href="#none">sub-menu3</a> </div> </li> <li> <a href="#none">sub-menu4</a> <div class="sub-menu"> <a href="#none">sub-menu4</a> <a href="#none">sub-menu4</a> <a href="#none">sub-menu4</a> <a href="#none">sub-menu4</a> </div> </li> </ul> </div> </header> <div class="slide"> <div> <a href="#none"><img src="images/slide-01.jpg" alt=""></a> <a href="#none"><img src="images/slide-02.jpg" alt=""></a> <a href="#none"><img src="images/slide-03.jpg" alt=""></a> </div> </div> <div class="items"> <div class="news"> <div class="tab-inner"> <div class="btn"> <a href="#none">공지사항</a> </div> <div class="tab1"> <a class="open-modal" href="#none"><em>공지사항공지사항공지사항공지사항공지사항</em> <b>2023.05.05</b></a> <a href="#none"><em>공지사항공지사항공지사항공지사항공지사항</em> <b>2023.05.05</b></a> <a href="#none"><em>공지사항공지사항공지사항공지사항공지사항</em> <b>2023.05.05</b></a> <a href="#none"><em>공지사항공지사항공지사항공지사항공지사항</em> <b>2023.05.05</b></a> </div> </div> </div> <div class="gallery"> <div class="btn"> 갤러리 </div> <div class="tab2"> <a href="#none"><img src="images/gallery-01.jpg" alt=""></a> <a href="#none"><img src="images/gallery-02.jpg" alt=""></a> <a href="#none"><img src="images/gallery-03.jpg" alt=""></a> </div> </div> <div class="shortcut"></div> </div> <footer> <div class="footer-logo"></div> <div class="copyright"></div> <div class="sns"></div> </footer> </div> <div class="modal"> <div class="modal-content"> <h2>스트리밍 서버 이전으로 서비스 장애</h2> <p>위 내용을 보시면 제법 큰 작업이었음을 알 수 있습니다. <br> 특히 문자셋의 변경에 따라 기존의 DB, data, 웹사이트 솔루션 등의 커스트마이징 등에 상당한 어려움이 있었고, <br> 이에 따른 일부 접속 오류가 있을 수 있었음에 양해를 구합니다.<br> 특히 인터넷익스플로러 11로 접속하셨을 경우 일부 문제은행 목차가 출력되지 않았을 수도 있습니다.<br><br> 서버 이전 작업으로 고객님들께 불편을 드려서 대단히 죄송합니다. 정상 운영되도록 최선을 다하겠습니다. 감사합니다.<br> </p> <a class="close-modal" href="#none">닫기</a> </div> </div> <script src="script/jquery-1.12.4.js"></script> <script src="script/custom.js"></script> </body> </html> @charset "utf-8"; body { color: #000; font-size:15px; background-color: #fff; margin:0; } a { text-decoration: none; color:inherit; } .container {width :1200px; border:1px solid #000; margin:auto;} header {height:100px; border:1px solid red; position:relative;} .slide {height:300px;} .items {height:250px;} footer {height:100px;} /* header */ header > div { height:100px; } .header-logo { border:1px solid #000; width:200px; float:left; } .navi { /* border:1px solid #000; */ width:600px; float:right; margin-right:20px; margin-top:55px; } .menu { } .menu li { list-style: none; float:left; width:25%; } .menu li > a { display: block; padding:5px; background-color: #fff; text-align: center; } .menu li:hover > a { background-color: #000; color: #fff; } .sub-menu { display: none; } .sub-menu a { display:block; padding:5px; background-color: #fff; text-align: center; } .sub-menu a:hover { background-color: #000; color:#fff; } /* slide */ .slide { position:relative; overflow:hidden; } .slide > div { font-size: 0; width:3600px; position:absolute; top:0; left:0; float: left; animation:slide 10s linear infinite; } @keyframes slide { 0% {left:0;} 30% {left:0;} 35% {left:-1200px;} 65% {left:-1200px;} 70% {left:-2400px;} 95% {left:-2400px;} 100% {left:0;} } /* items */ .items > div { height:250px; float:left; box-sizing: border-box; } .news { width:400px; border:1px solid #000; } .btn { display: inline-block; padding:5px; border: 1px solid #000; width:100px; text-align: center; } .tab1 {} .tab1 a {display:block; padding:5px;} .tab1 a em { width:70%; float:left; font-style:normal; white-space:nowrap; text-overflow:ellipsis; overflow:hidden; } .tab1 a b { width:30%; float:right; } .gallery { width:400px; border:1px solid red; } .tab2 { text-align: center; } .tab2 a {} .tab2 img { width:120px; } .shortcut { width:400px; border:1px solid green; } /* footer */ footer > div { height:100px; float:left; box-sizing:border-box; } .footer-logo { width:200px; background-color: #000; } .copyright { width:800px; background-color: aqua; } .sns { width:200px; background-color: green; } /* modal */ .modal{ position:absolute; top:0; left:0; background-color: rgba(0, 0, 0, 0.5); width:100%; height:100%; display: none; } .modal-content { position:absolute; top:50%; left:50%; transform: translate(-50%,-50%); background-color: #fff; height:350px; } .modal-content a { display: block; padding:20px; float:right; border:1px solid #000; } 이미지슬라이드가 1200*300 이 아니라정사각형으로 나오는데 원인을 모르겠어서 문의합니다^^;;

클래스 B 선언 부분에서, 생성자 선언후 빈{}는 무슨 용도인가요?? 아래 코드에서 17째줄 {} 입니다 #include <iostream>#include <string>#include <array>#include <limits>#include <vector>#include <algorithm>using namespace std;class B {private: int m_b;public: B(const int& m_b_in) : m_b(m_b_in) {}};class Something {private: int m_i; double m_d; char m_c; int m_arr[5]; B m_b;public: Something() : m_i(1), m_d(3.14), m_c('a'), m_arr{ 1, 2, 3, 4, 5 }, m_b(m_i-1) // 이게 member initializer. 물론 여기서 초기화 하고 20-22줄에서 다시 오버라이드도 가능 //m_i{1}, m_d{3.14}, m_c{'a'}로 하면 형변환이 안됨. 좀 더 엄격함. 자동으로 캐스팅이 안됨. { m_i = 2; m_d = 3.15; m_c = 'b'; } void print() { cout << m_i << " " << m_d << " " << m_c << " "; for (auto& e : m_arr) cout << e << " "; cout << endl; }};int main() { Something Some; Some.print(); return 0;}

영상7분쯤에서 "저런게 걸린다고"하셨는데,클래스레벨에 @Responsebody붙어있으면 괜찮은거 아닌가요?!?

cdn 방식으로 cropper를 사용하는 중이고요. 자바스크립트를 여러번 검토 하였음에도 프로필 사진 변경 문제는 끝까지 해결되지 않았습니다.https://www.youtube.com/watch?v=k330LVo2yw8setting.profile.html<!DOCTYPE html> <html lang="en" xmlns:th="http://www.thymeleaf.org" xmlns:sec="http://thymeleaf.org/extras/spring-security"> <head th:fragment="head"> <meta charset="UTF-8"> <title>StudyOlle</title> <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.4.1/dist/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous"> <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css"> <script src="https://code.jquery.com/jquery-3.4.1.slim.min.js" integrity="sha384-J6qa4849blE2+poT4WnyKhv5vZF5SrPo0iEjwBvKU7imGFAV0wwj1yYfoRSJoZ+n" crossorigin="anonymous"></script> <script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.0/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script> <script src="https://cdn.jsdelivr.net/npm/bootstrap@4.4.1/dist/js/bootstrap.min.js" integrity="sha384-wfSDF2E50Y2D1uUdj0O3uMBJnjuUD4Ih7YwaYd1iqfktj0Uod8GCExl3Og8ifwB6" crossorigin="anonymous"></script> <script src="https://cdn.jsdelivr.net/npm/jdenticon@3.2.0/dist/jdenticon.min.js" async integrity="sha384-yBhgDqxM50qJV5JPdayci8wCfooqvhFYbIKhv0hTtLvfeeyJMJCscRfFNKIxt43M" crossorigin="anonymous"> </script> <style> .container{ max-width:100%; } </style> </head> <nav th:fragment="main-nav" class="navbar navbar-expand-sm navbar-dark bg-dark"> <a class="navbar-brand" href="/" th:href="@{/}"> <img src="/images/logo_sm.png" width="30" height="30"> </a> <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon"></span> </button> <div class="collapse navbar-collapse" id="navbarSupportedContent"> <ul class="navbar-nav mr-auto"> <li class="nav-item"> <form th:action="@{/search/study}" class="form-inline" method="get"> <input class="form-control mr-sm-2" name="keyword" type="search" placeholder="스터디 찾기" aria-label="Search"> </form> </li> </ul> <ul class="navbar-nav justify-content-end"> <li class="nav-item" sec:authorize="isAnonymous()"> <a class="nav-link" th:href="@{/login}">로그인</a> </li> <li class="nav-item" sec:authorize="isAnonymous()"> <a class="nav-link" th:href="@{/sign-up}">가입</a> </li> <li class="nav-item" sec:authorize="isAuthenticated()"> <a class="nav-link" th:href="@{/notifications}"> <i class="fa fa-bell-o" aria-hidden="true"></i> </a> </li> <li class="nav-item" sec:authorize="isAuthenticated()"> <a class="nav-link btn btn-outline-primary" th:href="@{/notifications}"> <i class="fa fa-plus" aria-hidden="true"></i> 모임 개설 </a> </li> <li class="nav-item dropdown" sec:authorize="isAuthenticated()"> <a class="nav-link dropdown-toggle" href="#" id="userDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> <svg th:if="${#strings.isEmpty(account?.profileImage)}" th:data-jdenticon-value="${#authentication.name}" width="24" height="24" class="rounded border bg-light"></svg> <img th:if="${!#strings.isEmpty(account?.profileImage)}" th:src="${account.profileImage}" width="24" height="24" class="rounded border"/> </a> <div class="dropdown-menu dropdown-menu-sm-right" aria-labelledby="userDropdown"> <h6 class="dropdown-header"> <span sec:authentication="name">Username</span> </h6> <a class="dropdown-item" th:href="@{'/profile/' + ${#authentication.name}}">프로필</a> <a class="dropdown-item" >스터디</a> <div class="dropdown-divider"></div> <a class="dropdown-item" href="#" th:href="@{'/settings/profile'}">설정</a> <form class="form-inline my-2 my-lg-0" action="#" th:action="@{/logout}" method="post"> <button class="dropdown-item" type="submit">로그아웃</button> </form> </div> </li> </ul> </div> </nav> <footer th:fragment="footer"> <div class="row justify-content-center"> <img class="mb-2" src="/images/logo_lang_kr.jpg" alt="" width="100"> <small class="d-block mb-3 text-muted">&copy; 2023</small> </div> </footer> <div th:fragment="settings-menu (currentMenu)" class="list-group"> <a class="list-group-item list-group-item-action" th:classappend="${currentMenu == 'profile'}? active" href="#" th:href="@{/settings/profile}">프로필</a> <a class="list-group-item list-group-item-action" th:classappend="${currentMenu == 'password'}? active" href="#" th:href="@{/settings/password}">비밀번호</a> <a class="list-group-item list-group-item-action" th:classappend="${currentMenu == 'notification'}? active" href="#" th:href="@{/settings/notification}">알림</a> <a class="list-group-item list-group-item-action" th:classappend="${currentMenu == 'tags'}? active" href="#" th:href="@{/settings/tags}">관심 주제</a> <a class="list-group-item list-group-item-action" th:classappend="${currentMenu == 'zones'}? active" href="#" th:href="@{/settings/zones}">활동 지역</a> <a class="list-group-item list-group-item-action list-group-item-danger" th:classappend="${currentMenu == 'account'}? active" href="#" th:href="@{/settings/account}">계정</a> </div> <script type="application/javascript" th:fragment="form-validation"> (function () { 'use strict'; window.addEventListener('load', function () { // Fetch all the forms we want to apply custom Bootstrap validation styles to var forms = document.getElementsByClassName('needs-validation'); // Loop over them and prevent submission Array.prototype.filter.call(forms, function (form) { form.addEventListener('submit', function (event) { if (form.checkValidity() === false) { event.preventDefault(); event.stopPropagation(); } form.classList.add('was-validated') }, false) }) }, false) }()) </script> </html>fragments.html<!DOCTYPE html> <html lang="en" xmlns:th="http://www.thymeleaf.org" xmlns:sec="http://thymeleaf.org/extras/spring-security"> <head th:fragment="head"> <meta charset="UTF-8"> <title>StudyOlle</title> <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.4.1/dist/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous"> <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css"> <script src="https://code.jquery.com/jquery-3.4.1.slim.min.js" integrity="sha384-J6qa4849blE2+poT4WnyKhv5vZF5SrPo0iEjwBvKU7imGFAV0wwj1yYfoRSJoZ+n" crossorigin="anonymous"></script> <script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.0/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script> <script src="https://cdn.jsdelivr.net/npm/bootstrap@4.4.1/dist/js/bootstrap.min.js" integrity="sha384-wfSDF2E50Y2D1uUdj0O3uMBJnjuUD4Ih7YwaYd1iqfktj0Uod8GCExl3Og8ifwB6" crossorigin="anonymous"></script> <script src="https://cdn.jsdelivr.net/npm/jdenticon@3.2.0/dist/jdenticon.min.js" async integrity="sha384-yBhgDqxM50qJV5JPdayci8wCfooqvhFYbIKhv0hTtLvfeeyJMJCscRfFNKIxt43M" crossorigin="anonymous"> </script> <style> .container{ max-width:100%; } </style> </head> <nav th:fragment="main-nav" class="navbar navbar-expand-sm navbar-dark bg-dark"> <a class="navbar-brand" href="/" th:href="@{/}"> <img src="/images/logo_sm.png" width="30" height="30"> </a> <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon"></span> </button> <div class="collapse navbar-collapse" id="navbarSupportedContent"> <ul class="navbar-nav mr-auto"> <li class="nav-item"> <form th:action="@{/search/study}" class="form-inline" method="get"> <input class="form-control mr-sm-2" name="keyword" type="search" placeholder="스터디 찾기" aria-label="Search"> </form> </li> </ul> <ul class="navbar-nav justify-content-end"> <li class="nav-item" sec:authorize="isAnonymous()"> <a class="nav-link" th:href="@{/login}">로그인</a> </li> <li class="nav-item" sec:authorize="isAnonymous()"> <a class="nav-link" th:href="@{/sign-up}">가입</a> </li> <li class="nav-item" sec:authorize="isAuthenticated()"> <a class="nav-link" th:href="@{/notifications}"> <i class="fa fa-bell-o" aria-hidden="true"></i> </a> </li> <li class="nav-item" sec:authorize="isAuthenticated()"> <a class="nav-link btn btn-outline-primary" th:href="@{/notifications}"> <i class="fa fa-plus" aria-hidden="true"></i> 모임 개설 </a> </li> <li class="nav-item dropdown" sec:authorize="isAuthenticated()"> <a class="nav-link dropdown-toggle" href="#" id="userDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> <svg th:if="${#strings.isEmpty(account?.profileImage)}" th:data-jdenticon-value="${#authentication.name}" width="24" height="24" class="rounded border bg-light"></svg> <img th:if="${!#strings.isEmpty(account?.profileImage)}" th:src="${account.profileImage}" width="24" height="24" class="rounded border"/> </a> <div class="dropdown-menu dropdown-menu-sm-right" aria-labelledby="userDropdown"> <h6 class="dropdown-header"> <span sec:authentication="name">Username</span> </h6> <a class="dropdown-item" th:href="@{'/profile/' + ${#authentication.name}}">프로필</a> <a class="dropdown-item" >스터디</a> <div class="dropdown-divider"></div> <a class="dropdown-item" href="#" th:href="@{'/settings/profile'}">설정</a> <form class="form-inline my-2 my-lg-0" action="#" th:action="@{/logout}" method="post"> <button class="dropdown-item" type="submit">로그아웃</button> </form> </div> </li> </ul> </div> </nav> <footer th:fragment="footer"> <div class="row justify-content-center"> <img class="mb-2" src="/images/logo_lang_kr.jpg" alt="" width="100"> <small class="d-block mb-3 text-muted">&copy; 2023</small> </div> </footer> <div th:fragment="settings-menu (currentMenu)" class="list-group"> <a class="list-group-item list-group-item-action" th:classappend="${currentMenu == 'profile'}? active" href="#" th:href="@{/settings/profile}">프로필</a> <a class="list-group-item list-group-item-action" th:classappend="${currentMenu == 'password'}? active" href="#" th:href="@{/settings/password}">비밀번호</a> <a class="list-group-item list-group-item-action" th:classappend="${currentMenu == 'notification'}? active" href="#" th:href="@{/settings/notification}">알림</a> <a class="list-group-item list-group-item-action" th:classappend="${currentMenu == 'tags'}? active" href="#" th:href="@{/settings/tags}">관심 주제</a> <a class="list-group-item list-group-item-action" th:classappend="${currentMenu == 'zones'}? active" href="#" th:href="@{/settings/zones}">활동 지역</a> <a class="list-group-item list-group-item-action list-group-item-danger" th:classappend="${currentMenu == 'account'}? active" href="#" th:href="@{/settings/account}">계정</a> </div> <script type="application/javascript" th:fragment="form-validation"> (function () { 'use strict'; window.addEventListener('load', function () { // Fetch all the forms we want to apply custom Bootstrap validation styles to var forms = document.getElementsByClassName('needs-validation'); // Loop over them and prevent submission Array.prototype.filter.call(forms, function (form) { form.addEventListener('submit', function (event) { if (form.checkValidity() === false) { event.preventDefault(); event.stopPropagation(); } form.classList.add('was-validated') }, false) }) }, false) }()) </script> </html>SettingsController.java@Controller @RequiredArgsConstructor public class SettingsController { final static String SETTING_PROFILE_VIEW_NAME="settings/profile"; final static String SETTING_PROFILE_URL="/settings/profile"; private final AccountService accountService; @GetMapping(SETTING_PROFILE_URL) public String profileUpdateForm(@CurrentUser Account account, Model model){ model.addAttribute(account); model.addAttribute(new Profile(account)); return SETTING_PROFILE_VIEW_NAME; } @PostMapping(SETTING_PROFILE_URL) public String updateProfile(@CurrentUser Account account, @Valid Profile profile, Errors errors, Model model, RedirectAttributes attributes){ if(errors.hasErrors()){ model.addAttribute(account); return SETTING_PROFILE_VIEW_NAME; } accountService.updateProfile(account, profile); attributes.addFlashAttribute("message","프로필을 수정했습니다."); return "redirect:"+SETTING_PROFILE_URL; } }AccountService.javapublic void updateProfile(Account account, Profile profile){ account.setUrl(profile.getUrl()); account.setBio(profile.getBio()); account.setOccupation(profile.getOccupation()); account.setLocation(profile.getLocation()); account.setProfileImage(profile.getProfileImage()); accountRepository.save(account); }Profile.java@Data @NoArgsConstructor public class Profile { @Length(max = 35) private String bio; @Length(max = 50) private String url; @Length(max = 50) private String occupation; @Length(max = 50) private String location; private String profileImage; public Profile(Account account){ this.bio=account.getBio(); this.url=account.getUrl(); this.occupation=account.getOccupation(); this.location=account.getLocation(); this.profileImage=account.getProfileImage(); } }

 ArrayList<Student> list = new ArrayList<>(); list.add(new Student("유재석", "파이썬")); list.add(new Student("박명수", "자바")); list.add(new Student("김종국", "자바")); list.add(new Student("조세호", "C")); list.add(new Student("서장훈", "파이썬"));안녕하세요 프로그래밍 입문 일주일차입니다..강의 볼때마다 어쩔땐 new를 붙일때 있고 어쩔땐 new를 안붙이고 할때가 있는데 new가 뭔가요..???강의를 보면서 할때는 이해가 가는데혼자서 해볼려고 하면 머리 속이 새하얘지는데 계속 하다보면 나아 질까요..??