배민에 입사하고 싶은데 어떤 준비를 하면 될까요? jpa가 많이 도움이 될까요?

안녕하세요. 좋은 강의 항상 감사드립니다. 저는 주피터 노트북이아니라 캐글 자체 노트북에서 코드를 따라하면서 진행을 하는데요, 캐글 노트북에서 KaggleWord2VecUtility 패키지는 어떻게 만드나요? https://github.com/corazzon/KaggleStruggle/blob/master/word2vec-nlp-tutorial/KaggleWord2VecUtility.py 여기 나와있는데로 기존 노트북에 복사 붙여넣기 한다음 패키지를 불러왔는데 오류가 뜨더라구요!

-98을 2의 보수로 나타낼때 1의 보수에 1만 더하면 되니까 -98 ->1의 보수 1001  1101 ->2의 보수 1001 1110 으로 되는 것이 맞나요? 마지막에 -98이 0110 0010으로 되있어서 헷갈립니다.

백엔드 app.js에서 https바뀐대로 origin을 적어줬고 credentials도 true인데 왜 cors에러가 나는걸까요....

빌드는 성공했다고 뜨는데 성공하고 바로 종료가 되서 확인을 못하겠는데 이럴 경우는 어떤게 문제일까요...?? 8080 포트 사용여부도 확인하고 다 종료해보고 다시해봐도 빌드는 성공하지만 직후 바로 종료가 되서 오류도 안뜨고 어떻게 해야할지 모르겠습니다ㅠㅠ

현재는 back 아래에  lambda 폴더에 index 로 사용이 되었는데, 만약 함수가 여러개 사용이 된다면 lambda 폴더 아래 함수명 폴더 아래 index.js 를 놓고 수정시나, 생성시 각각의 폴더에서 동일하게 사용하나요?

안녕하세요, 선생님! 지금까지 DFS 문제들에서는 뻗기 전에 체크 걸어주고 돌아온후에 체크 풀어준다라고 암기하듯 외웠는데요, 이 문제는 들어가서 처음에 한번 걸어주고 풀지않는데요. 그 이유는 사다리 타기의 경우 답이 한 경로만 존재하고 위로만 올라가기 때문인지요?

패턴 직접 구현 중 MyClassA,MyClassB에 있는 Publisher observerble; 부분이 있어야 하는 이유가 있을까요?

create-react-app으로 만들어서 진행하는거  맞죠? 그리고 src 파일 원래 있던 것 중에서 이름하고 내용 바꾸는 식으로 하신건가요? 

안녕하세요. 저는 주로 css파일을 html에다 설정해주는데요, 그러면 css-loader나 style-loader는 딱히 필요 없는건가요? 저의 경우에는 스크립트에 css를 임포트하는 일이 없어서, 보통 어떤 경우에 이 두가지 로더를 사용하면 도움이 되는 건지 궁금합니다! 또, 나중에 플러그인에 나오는 MiniCssExtractPlugin을 사용하면 css파일을 한데 모아주고 자동으로 html에 설정 구문을 넣어주니까 그 때를 위해서 css-loader+MiniCssExtractPlugin조합으로 사용하는 경우에는 유용할 것 같은데요, 보통은 웹팩 구성할 때 이런 식으로 설정을 하는 것인지(?) 궁금합니다 !!

에로우 스코프는 함수선언문처럼은 못하나요? 보면 함수표현식처럼 if(true){   d()  // Uncaught TypeError: d is not a function   var d = () => {   console.log( true )   } } d() //true 이렇게 할당하는데 이렇게 하면은 이렇게 나오는데 함수표현식이여서 전역컨텍스트에 var d; 만 선언되고  함수는 할당이 안되서 에러가 나오는데 'use strict' if (true) {   a() //true   function a () { console.log(true) } } 이렇게 블록스코프에 같인 함수선언문은  true가 나오는데  왜 arrow function 쓰라는지 조금만 더 설명 부탁드려도 될까요 

이 강의를 다 듣고 월드에 있는 아이템을 먹으면 인벤토리 창에 추가할려는 기능을 구현하고 있습니다.근데 제가 아이템을 prefab으로 저장하고 그 해당 prefab를 드래그앤드롭해서 월드에 위치시켜줬습니다. 월드에서 플레이어가 아이템을 먹으면 플레이어가 가지고 있는 스크립트 list에 추가한 후에 월드에 있는 아이템은 사라지도록 Destory를 했습니다.일단 리스트에 size가 늘어나는거 보면 들어오기는 하는데.. Destory를 해서 그런지 해당 리스트에 담긴것이 없어지면서 missing으로 나옵니다ㅠㅠ. 혹시 방법이 있을까요??..

단위 테스트가 훨씬 좋은 테스트일 가능성이 높다고 하셨는데, 그렇다면 db를 연동하고 난 후에는 단위테스트를 어떻게 진행하면 되는 건가요?

삭제된 글입니다

선생님과 똑같이 했는데 뭐가 잘못되었을까요? import openpyxl excel_file = openpyxl.Workbook() excel_sheet = excel_file.active excel_sheet.append(['data1', 'data2', 'data3']) excel_file.save('tmp.xlsx') excel_file.close() NameError Traceback (most recent call last) <ipython-input-2-ceee3ced2775> in <module> ----> 1 excel_file.close() NameError: name 'excel_file' is not defined

안녕하세요 선생님. class MyList<T> where T : Monster  // T는 반드시 Monster 혹은 Monster를 상속받은 클래스여야 한다. 이 설명이 이해가 안가는데 T가 Monster 타입이어야되는 조건이 있는데 그럼 왜 모든 타입을 받을 수 있는 제너릭으로 만든건가요??

아래 처럼 제네릭을 이용해 union을 제거했는데 option.value = item.value.toString(); option.innerText = item.value.toString(); 이부분에서 toString에 `T형식에는 toString 속성이 없습니다`라는 에러가 나옵니다. 찾아봐도 해결하는 방법을 몰라서 어떻게 해야하는지 질문드립니다. function createDropdownItem<T>(item: DropDownItem<T>) { const option = document.createElement('option'); option.value = item.value.toString(); option.innerText = item.value.toString(); option.selected = item.selected; return option; } emails.forEach(function (email) { const item = createDropdownItem<string>(email); const selectTag = document.querySelector('#email-dropdown'); selectTag?.appendChild(item); });

뷰를 처음 공부하고 있습니다. 어느정도 공부하다보니 SEO 문제를 접하게 되었는데요... SEO문제를 해결하기 위해 nuxt를 사용하면 운영서버가 꼭 node.js 환경이어야 하나요? 클라이언트 요구 사항으로 일반 홈페이지를 vue로 개발하는 상황인데 백엔드는 자바로 개발될겁니다. 기존의 홈페이지도 현재 자바로 개발되서 운영중이구요. 이걸 리뉴얼 하면서 vue로 프론트를 개발해 달라고 해서 현재 열심히 공부중인데 SEO처리를 어떻게 해야하나 궁금해집니다. 사실 vue관련 강의 이것저것 거의다  듣고 이 강의는 nuxt 가 궁금해서 수강하게 되었습니다. 이 강의는 아직 초반만 들은 상태입니다. 다시 질문으로 돌아와서 현재 자바로 운영되고 있는 홈페이지의 프론트를 vue로 개발하려는데 nuxt를 사용하면 배포시 운영서버에 꼭 node.js 환경이 갖춰져야 하나요? 아니면 프론트 개발할때만 node js 환경에서 하면 되는건가요?

pdf 뿐만 아니라 사내 프로그램에서 항목 select가 안 되는 경우에는 어떻게 처리해야 하나요? 

13강을 따라하고 있는데 아래와 같은 에러가 발생합니다. 제가 강의를 듣는 환경은 STS4 를 사용하고 있고, JDBC API와 Oracle Driver를 같이 선택해서 프로젝트를 생성했고,  강의 Sample 그대로를 따라서 작성 후 내장 서버를 실행시키면 아래와 같은 에러가 발생합니다. 무엇이 잘 못 된 걸까요?  OpenJDK 64-Bit Server VM warning: Options -Xverify:none and -noverify were deprecated in JDK 13 and will likely be removed in a future release.   .   ____          _            __ _ _  /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \ ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \  \\/  ___)| |_)| | | | | || (_| |  ) ) ) )   '  |____| .__|_| |_|_| |_\__, | / / / /  =========|_|==============|___/=/_/_/_/  :: Spring Boot ::        (v2.3.4.RELEASE) 2020-10-27 09:13:24.957  INFO 13156 --- [           main] c.s.s.Ex13JdbcTemplate1Application       : Starting Ex13JdbcTemplate1Application on LCSC05V395 with PID 13156 (C:\workspace\Ex13_JdbcTemplate1\bin\main started by 26114 in C:\workspace\Ex13_JdbcTemplate1) 2020-10-27 09:13:24.959  INFO 13156 --- [           main] c.s.s.Ex13JdbcTemplate1Application       : No active profile set, falling back to default profiles: default 2020-10-27 09:13:26.043  INFO 13156 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 8081 (http) 2020-10-27 09:13:26.058  INFO 13156 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat] 2020-10-27 09:13:26.058  INFO 13156 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet engine: [Apache Tomcat/9.0.38] 2020-10-27 09:13:26.383  WARN 13156 --- [           main] o.a.tomcat.util.scan.StandardJarScanner  : Failed to scan [file:/C:/Users/xxxxx/.gradle/caches/modules-2/files-2.1/com.oracle.database.jdbc/ojdbc8/19.3.0.0/967c0b1a2d5b1435324de34a9b8018d294f8f47b/oraclepki.jar] from classloader hierarchy java.io.IOException: java.lang.reflect.InvocationTargetException at org.apache.tomcat.util.compat.Jre9Compat.jarFileNewInstance(Jre9Compat.java:205) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.tomcat.util.scan.JarFileUrlJar.<init>(JarFileUrlJar.java:65) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.tomcat.util.scan.JarFactory.newInstance(JarFactory.java:49) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.tomcat.util.scan.StandardJarScanner.process(StandardJarScanner.java:383) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.tomcat.util.scan.StandardJarScanner.processURLs(StandardJarScanner.java:318) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.tomcat.util.scan.StandardJarScanner.doScanClassPath(StandardJarScanner.java:282) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.tomcat.util.scan.StandardJarScanner.scan(StandardJarScanner.java:233) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.jasper.servlet.TldScanner.scanJars(TldScanner.java:262) ~[tomcat-embed-jasper-9.0.38.jar:9.0.38] at org.apache.jasper.servlet.TldScanner.scan(TldScanner.java:104) ~[tomcat-embed-jasper-9.0.38.jar:9.0.38] at org.apache.jasper.servlet.JasperInitializer.onStartup(JasperInitializer.java:83) ~[tomcat-embed-jasper-9.0.38.jar:9.0.38] at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5128) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na] at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140) ~[na:na] at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:843) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na] at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140) ~[na:na] at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.StandardService.startInternal(StandardService.java:421) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:930) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.startup.Tomcat.start(Tomcat.java:486) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:123) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.<init>(TomcatWebServer.java:104) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getTomcatWebServer(TomcatServletWebServerFactory.java:437) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getWebServer(TomcatServletWebServerFactory.java:191) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:178) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:158) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:545) ~[spring-context-5.2.9.RELEASE.jar:5.2.9.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:143) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1237) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at com.study.springboot.Ex13JdbcTemplate1Application.main(Ex13JdbcTemplate1Application.java:10) ~[main/:na] Caused by: java.lang.reflect.InvocationTargetException: null at java.base/jdk.internal.reflect.GeneratedConstructorAccessor16.newInstance(Unknown Source) ~[na:na] at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:na] at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:500) ~[na:na] at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:481) ~[na:na] at org.apache.tomcat.util.compat.Jre9Compat.jarFileNewInstance(Jre9Compat.java:202) ~[tomcat-embed-core-9.0.38.jar:9.0.38] ... 47 common frames omitted Caused by: java.nio.file.NoSuchFileException: C:\Users\26114\.gradle\caches\modules-2\files-2.1\com.oracle.database.jdbc\ojdbc8\19.3.0.0\967c0b1a2d5b1435324de34a9b8018d294f8f47b\oraclepki.jar at java.base/sun.nio.fs.WindowsException.translateToIOException(WindowsException.java:85) ~[na:na] at java.base/sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:103) ~[na:na] at java.base/sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:108) ~[na:na] at java.base/sun.nio.fs.WindowsFileAttributeViews$Basic.readAttributes(WindowsFileAttributeViews.java:53) ~[na:na] at java.base/sun.nio.fs.WindowsFileAttributeViews$Basic.readAttributes(WindowsFileAttributeViews.java:38) ~[na:na] at java.base/sun.nio.fs.WindowsFileSystemProvider.readAttributes(WindowsFileSystemProvider.java:198) ~[na:na] at java.base/java.nio.file.Files.readAttributes(Files.java:1843) ~[na:na] at java.base/java.util.zip.ZipFile$Source.get(ZipFile.java:1160) ~[na:na] at java.base/java.util.zip.ZipFile$CleanableResource.<init>(ZipFile.java:717) ~[na:na] at java.base/java.util.zip.ZipFile.<init>(ZipFile.java:237) ~[na:na] at java.base/java.util.zip.ZipFile.<init>(ZipFile.java:167) ~[na:na] at java.base/java.util.jar.JarFile.<init>(JarFile.java:347) ~[na:na] ... 52 common frames omitted 2020-10-27 09:13:26.385  WARN 13156 --- [           main] o.a.tomcat.util.scan.StandardJarScanner  : Failed to scan [file:/C:/Users/xxxxx/.gradle/caches/modules-2/files-2.1/com.oracle.database.security/oraclepki/19.3.0.0/e52a34f271c6c62ee1a73b71cc19da5459b709f/osdt_core.jar] from classloader hierarchy java.io.IOException: java.lang.reflect.InvocationTargetException at org.apache.tomcat.util.compat.Jre9Compat.jarFileNewInstance(Jre9Compat.java:205) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.tomcat.util.scan.JarFileUrlJar.<init>(JarFileUrlJar.java:65) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.tomcat.util.scan.JarFactory.newInstance(JarFactory.java:49) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.tomcat.util.scan.StandardJarScanner.process(StandardJarScanner.java:383) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.tomcat.util.scan.StandardJarScanner.processURLs(StandardJarScanner.java:318) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.tomcat.util.scan.StandardJarScanner.doScanClassPath(StandardJarScanner.java:282) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.tomcat.util.scan.StandardJarScanner.scan(StandardJarScanner.java:233) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.jasper.servlet.TldScanner.scanJars(TldScanner.java:262) ~[tomcat-embed-jasper-9.0.38.jar:9.0.38] at org.apache.jasper.servlet.TldScanner.scan(TldScanner.java:104) ~[tomcat-embed-jasper-9.0.38.jar:9.0.38] at org.apache.jasper.servlet.JasperInitializer.onStartup(JasperInitializer.java:83) ~[tomcat-embed-jasper-9.0.38.jar:9.0.38] at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5128) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na] at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140) ~[na:na] at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:843) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na] at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140) ~[na:na] at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.StandardService.startInternal(StandardService.java:421) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:930) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.startup.Tomcat.start(Tomcat.java:486) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:123) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.<init>(TomcatWebServer.java:104) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getTomcatWebServer(TomcatServletWebServerFactory.java:437) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getWebServer(TomcatServletWebServerFactory.java:191) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:178) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:158) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:545) ~[spring-context-5.2.9.RELEASE.jar:5.2.9.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:143) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1237) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at com.study.springboot.Ex13JdbcTemplate1Application.main(Ex13JdbcTemplate1Application.java:10) ~[main/:na] Caused by: java.lang.reflect.InvocationTargetException: null at java.base/jdk.internal.reflect.GeneratedConstructorAccessor16.newInstance(Unknown Source) ~[na:na] at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:na] at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:500) ~[na:na] at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:481) ~[na:na] at org.apache.tomcat.util.compat.Jre9Compat.jarFileNewInstance(Jre9Compat.java:202) ~[tomcat-embed-core-9.0.38.jar:9.0.38] ... 47 common frames omitted Caused by: java.nio.file.NoSuchFileException: C:\Users\26114\.gradle\caches\modules-2\files-2.1\com.oracle.database.security\oraclepki\19.3.0.0\e52a34f271c6c62ee1a73b71cc19da5459b709f\osdt_core.jar at java.base/sun.nio.fs.WindowsException.translateToIOException(WindowsException.java:85) ~[na:na] at java.base/sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:103) ~[na:na] at java.base/sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:108) ~[na:na] at java.base/sun.nio.fs.WindowsFileAttributeViews$Basic.readAttributes(WindowsFileAttributeViews.java:53) ~[na:na] at java.base/sun.nio.fs.WindowsFileAttributeViews$Basic.readAttributes(WindowsFileAttributeViews.java:38) ~[na:na] at java.base/sun.nio.fs.WindowsFileSystemProvider.readAttributes(WindowsFileSystemProvider.java:198) ~[na:na] at java.base/java.nio.file.Files.readAttributes(Files.java:1843) ~[na:na] at java.base/java.util.zip.ZipFile$Source.get(ZipFile.java:1160) ~[na:na] at java.base/java.util.zip.ZipFile$CleanableResource.<init>(ZipFile.java:717) ~[na:na] at java.base/java.util.zip.ZipFile.<init>(ZipFile.java:237) ~[na:na] at java.base/java.util.zip.ZipFile.<init>(ZipFile.java:167) ~[na:na] at java.base/java.util.jar.JarFile.<init>(JarFile.java:347) ~[na:na] ... 52 common frames omitted 2020-10-27 09:13:26.387  WARN 13156 --- [           main] o.a.tomcat.util.scan.StandardJarScanner  : Failed to scan [file:/C:/Users/xxxxx/.gradle/caches/modules-2/files-2.1/com.oracle.database.security/oraclepki/19.3.0.0/e52a34f271c6c62ee1a73b71cc19da5459b709f/osdt_cert.jar] from classloader hierarchy java.io.IOException: java.lang.reflect.InvocationTargetException at org.apache.tomcat.util.compat.Jre9Compat.jarFileNewInstance(Jre9Compat.java:205) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.tomcat.util.scan.JarFileUrlJar.<init>(JarFileUrlJar.java:65) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.tomcat.util.scan.JarFactory.newInstance(JarFactory.java:49) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.tomcat.util.scan.StandardJarScanner.process(StandardJarScanner.java:383) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.tomcat.util.scan.StandardJarScanner.processURLs(StandardJarScanner.java:318) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.tomcat.util.scan.StandardJarScanner.doScanClassPath(StandardJarScanner.java:282) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.tomcat.util.scan.StandardJarScanner.scan(StandardJarScanner.java:233) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.jasper.servlet.TldScanner.scanJars(TldScanner.java:262) ~[tomcat-embed-jasper-9.0.38.jar:9.0.38] at org.apache.jasper.servlet.TldScanner.scan(TldScanner.java:104) ~[tomcat-embed-jasper-9.0.38.jar:9.0.38] at org.apache.jasper.servlet.JasperInitializer.onStartup(JasperInitializer.java:83) ~[tomcat-embed-jasper-9.0.38.jar:9.0.38] at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5128) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na] at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140) ~[na:na] at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:843) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na] at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140) ~[na:na] at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.StandardService.startInternal(StandardService.java:421) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:930) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.startup.Tomcat.start(Tomcat.java:486) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:123) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.<init>(TomcatWebServer.java:104) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getTomcatWebServer(TomcatServletWebServerFactory.java:437) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getWebServer(TomcatServletWebServerFactory.java:191) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:178) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:158) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:545) ~[spring-context-5.2.9.RELEASE.jar:5.2.9.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:143) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1237) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at com.study.springboot.Ex13JdbcTemplate1Application.main(Ex13JdbcTemplate1Application.java:10) ~[main/:na] Caused by: java.lang.reflect.InvocationTargetException: null at java.base/jdk.internal.reflect.GeneratedConstructorAccessor16.newInstance(Unknown Source) ~[na:na] at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:na] at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:500) ~[na:na] at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:481) ~[na:na] at org.apache.tomcat.util.compat.Jre9Compat.jarFileNewInstance(Jre9Compat.java:202) ~[tomcat-embed-core-9.0.38.jar:9.0.38] ... 47 common frames omitted Caused by: java.nio.file.NoSuchFileException: C:\Users\26114\.gradle\caches\modules-2\files-2.1\com.oracle.database.security\oraclepki\19.3.0.0\e52a34f271c6c62ee1a73b71cc19da5459b709f\osdt_cert.jar at java.base/sun.nio.fs.WindowsException.translateToIOException(WindowsException.java:85) ~[na:na] at java.base/sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:103) ~[na:na] at java.base/sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:108) ~[na:na] at java.base/sun.nio.fs.WindowsFileAttributeViews$Basic.readAttributes(WindowsFileAttributeViews.java:53) ~[na:na] at java.base/sun.nio.fs.WindowsFileAttributeViews$Basic.readAttributes(WindowsFileAttributeViews.java:38) ~[na:na] at java.base/sun.nio.fs.WindowsFileSystemProvider.readAttributes(WindowsFileSystemProvider.java:198) ~[na:na] at java.base/java.nio.file.Files.readAttributes(Files.java:1843) ~[na:na] at java.base/java.util.zip.ZipFile$Source.get(ZipFile.java:1160) ~[na:na] at java.base/java.util.zip.ZipFile$CleanableResource.<init>(ZipFile.java:717) ~[na:na] at java.base/java.util.zip.ZipFile.<init>(ZipFile.java:237) ~[na:na] at java.base/java.util.zip.ZipFile.<init>(ZipFile.java:167) ~[na:na] at java.base/java.util.jar.JarFile.<init>(JarFile.java:347) ~[na:na] ... 52 common frames omitted 2020-10-27 09:13:26.389  WARN 13156 --- [           main] o.a.tomcat.util.scan.StandardJarScanner  : Failed to scan [file:/C:/Users/xxxxx/.gradle/caches/modules-2/files-2.1/com.oracle.database.security/oraclepki/19.3.0.0/oracle.osdt/osdt_core.jar] from classloader hierarchy java.io.IOException: java.lang.reflect.InvocationTargetException at org.apache.tomcat.util.compat.Jre9Compat.jarFileNewInstance(Jre9Compat.java:205) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.tomcat.util.scan.JarFileUrlJar.<init>(JarFileUrlJar.java:65) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.tomcat.util.scan.JarFactory.newInstance(JarFactory.java:49) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.tomcat.util.scan.StandardJarScanner.process(StandardJarScanner.java:383) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.tomcat.util.scan.StandardJarScanner.processURLs(StandardJarScanner.java:318) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.tomcat.util.scan.StandardJarScanner.doScanClassPath(StandardJarScanner.java:282) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.tomcat.util.scan.StandardJarScanner.scan(StandardJarScanner.java:233) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.jasper.servlet.TldScanner.scanJars(TldScanner.java:262) ~[tomcat-embed-jasper-9.0.38.jar:9.0.38] at org.apache.jasper.servlet.TldScanner.scan(TldScanner.java:104) ~[tomcat-embed-jasper-9.0.38.jar:9.0.38] at org.apache.jasper.servlet.JasperInitializer.onStartup(JasperInitializer.java:83) ~[tomcat-embed-jasper-9.0.38.jar:9.0.38] at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5128) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na] at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140) ~[na:na] at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:843) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na] at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140) ~[na:na] at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.StandardService.startInternal(StandardService.java:421) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:930) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.startup.Tomcat.start(Tomcat.java:486) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:123) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.<init>(TomcatWebServer.java:104) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getTomcatWebServer(TomcatServletWebServerFactory.java:437) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getWebServer(TomcatServletWebServerFactory.java:191) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:178) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:158) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:545) ~[spring-context-5.2.9.RELEASE.jar:5.2.9.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:143) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1237) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at com.study.springboot.Ex13JdbcTemplate1Application.main(Ex13JdbcTemplate1Application.java:10) ~[main/:na] Caused by: java.lang.reflect.InvocationTargetException: null at java.base/jdk.internal.reflect.GeneratedConstructorAccessor16.newInstance(Unknown Source) ~[na:na] at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:na] at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:500) ~[na:na] at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:481) ~[na:na] at org.apache.tomcat.util.compat.Jre9Compat.jarFileNewInstance(Jre9Compat.java:202) ~[tomcat-embed-core-9.0.38.jar:9.0.38] ... 47 common frames omitted Caused by: java.nio.file.NoSuchFileException: C:\Users\26114\.gradle\caches\modules-2\files-2.1\com.oracle.database.security\oraclepki\19.3.0.0\oracle.osdt\osdt_core.jar at java.base/sun.nio.fs.WindowsException.translateToIOException(WindowsException.java:85) ~[na:na] at java.base/sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:103) ~[na:na] at java.base/sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:108) ~[na:na] at java.base/sun.nio.fs.WindowsFileAttributeViews$Basic.readAttributes(WindowsFileAttributeViews.java:53) ~[na:na] at java.base/sun.nio.fs.WindowsFileAttributeViews$Basic.readAttributes(WindowsFileAttributeViews.java:38) ~[na:na] at java.base/sun.nio.fs.WindowsFileSystemProvider.readAttributes(WindowsFileSystemProvider.java:198) ~[na:na] at java.base/java.nio.file.Files.readAttributes(Files.java:1843) ~[na:na] at java.base/java.util.zip.ZipFile$Source.get(ZipFile.java:1160) ~[na:na] at java.base/java.util.zip.ZipFile$CleanableResource.<init>(ZipFile.java:717) ~[na:na] at java.base/java.util.zip.ZipFile.<init>(ZipFile.java:237) ~[na:na] at java.base/java.util.zip.ZipFile.<init>(ZipFile.java:167) ~[na:na] at java.base/java.util.jar.JarFile.<init>(JarFile.java:347) ~[na:na] ... 52 common frames omitted 2020-10-27 09:13:26.391  WARN 13156 --- [           main] o.a.tomcat.util.scan.StandardJarScanner  : Failed to scan [file:/C:/Users/xxxxx/.gradle/caches/modules-2/files-2.1/com.oracle.database.security/oraclepki/19.3.0.0/oracle.osdt/osdt_cert.jar] from classloader hierarchy java.io.IOException: java.lang.reflect.InvocationTargetException at org.apache.tomcat.util.compat.Jre9Compat.jarFileNewInstance(Jre9Compat.java:205) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.tomcat.util.scan.JarFileUrlJar.<init>(JarFileUrlJar.java:65) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.tomcat.util.scan.JarFactory.newInstance(JarFactory.java:49) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.tomcat.util.scan.StandardJarScanner.process(StandardJarScanner.java:383) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.tomcat.util.scan.StandardJarScanner.processURLs(StandardJarScanner.java:318) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.tomcat.util.scan.StandardJarScanner.doScanClassPath(StandardJarScanner.java:282) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.tomcat.util.scan.StandardJarScanner.scan(StandardJarScanner.java:233) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.jasper.servlet.TldScanner.scanJars(TldScanner.java:262) ~[tomcat-embed-jasper-9.0.38.jar:9.0.38] at org.apache.jasper.servlet.TldScanner.scan(TldScanner.java:104) ~[tomcat-embed-jasper-9.0.38.jar:9.0.38] at org.apache.jasper.servlet.JasperInitializer.onStartup(JasperInitializer.java:83) ~[tomcat-embed-jasper-9.0.38.jar:9.0.38] at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5128) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na] at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140) ~[na:na] at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:843) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na] at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140) ~[na:na] at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.StandardService.startInternal(StandardService.java:421) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:930) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.apache.catalina.startup.Tomcat.start(Tomcat.java:486) ~[tomcat-embed-core-9.0.38.jar:9.0.38] at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:123) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.<init>(TomcatWebServer.java:104) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getTomcatWebServer(TomcatServletWebServerFactory.java:437) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getWebServer(TomcatServletWebServerFactory.java:191) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:178) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:158) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:545) ~[spring-context-5.2.9.RELEASE.jar:5.2.9.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:143) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1237) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE] at com.study.springboot.Ex13JdbcTemplate1Application.main(Ex13JdbcTemplate1Application.java:10) ~[main/:na] Caused by: java.lang.reflect.InvocationTargetException: null at java.base/jdk.internal.reflect.GeneratedConstructorAccessor16.newInstance(Unknown Source) ~[na:na] at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:na] at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:500) ~[na:na] at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:481) ~[na:na] at org.apache.tomcat.util.compat.Jre9Compat.jarFileNewInstance(Jre9Compat.java:202) ~[tomcat-embed-core-9.0.38.jar:9.0.38] ... 47 common frames omitted Caused by: java.nio.file.NoSuchFileException: C:\Users\26114\.gradle\caches\modules-2\files-2.1\com.oracle.database.security\oraclepki\19.3.0.0\oracle.osdt\osdt_cert.jar at java.base/sun.nio.fs.WindowsException.translateToIOException(WindowsException.java:85) ~[na:na] at java.base/sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:103) ~[na:na] at java.base/sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:108) ~[na:na] at java.base/sun.nio.fs.WindowsFileAttributeViews$Basic.readAttributes(WindowsFileAttributeViews.java:53) ~[na:na] at java.base/sun.nio.fs.WindowsFileAttributeViews$Basic.readAttributes(WindowsFileAttributeViews.java:38) ~[na:na] at java.base/sun.nio.fs.WindowsFileSystemProvider.readAttributes(WindowsFileSystemProvider.java:198) ~[na:na] at java.base/java.nio.file.Files.readAttributes(Files.java:1843) ~[na:na] at java.base/java.util.zip.ZipFile$Source.get(ZipFile.java:1160) ~[na:na] at java.base/java.util.zip.ZipFile$CleanableResource.<init>(ZipFile.java:717) ~[na:na] at java.base/java.util.zip.ZipFile.<init>(ZipFile.java:237) ~[na:na] at java.base/java.util.zip.ZipFile.<init>(ZipFile.java:167) ~[na:na] at java.base/java.util.jar.JarFile.<init>(JarFile.java:347) ~[na:na] ... 52 common frames omitted 2020-10-27 09:13:26.395  INFO 13156 --- [           main] org.apache.jasper.servlet.TldScanner     : At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time. 2020-10-27 09:13:26.404  INFO 13156 --- [           main] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext 2020-10-27 09:13:26.405  INFO 13156 --- [           main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 1392 ms 2020-10-27 09:13:26.711  INFO 13156 --- [           main] o.s.s.concurrent.ThreadPoolTaskExecutor  : Initializing ExecutorService 'applicationTaskExecutor' 2020-10-27 09:13:26.922  INFO 13156 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 8081 (http) with context path '' 2020-10-27 09:13:26.932  INFO 13156 --- [           main] c.s.s.Ex13JdbcTemplate1Application       : Started Ex13JdbcTemplate1Application in 2.377 seconds (JVM running for 3.299)