Failed to load ApplicationContext 에러 해결

인프런 jpa 스프링 활용 강의를 듣던중, Failed to load ApplicationContext 에러가 발생하였는데, 이를 해결하는 과정을 기록해두려고 한다.

 

에러코드

java.lang.IllegalStateException: Failed to load ApplicationContext

at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:132)
at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:124)
at org.springframework.test.context.web.ServletTestExecutionListener.setUpRequestContextIfNecessary(ServletTestExecutionListener.java:190)
at org.springframework.test.context.web.ServletTestExecutionListener.prepareTestInstance(ServletTestExecutionListener.java:132)
at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:248)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:227)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:289)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:291)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:246)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:97)
at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:190)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)
at com.intellij.rt.junit.IdeaTestRunner$Repeater$1.execute(IdeaTestRunner.java:38)
at com.intellij.rt.execution.junit.TestsRepeater.repeat(TestsRepeater.java:11)
at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:35)
at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:235)
at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:54)
Caused by: mapping values are not allowed here
 in 'reader', line 4, column 13:
        username: sa
                ^

at org.yaml.snakeyaml.scanner.ScannerImpl.fetchValue(ScannerImpl.java:910)
at org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:400)
at org.yaml.snakeyaml.scanner.ScannerImpl.checkToken(ScannerImpl.java:251)
at org.yaml.snakeyaml.parser.ParserImpl$ParseBlockMappingKey.produce(ParserImpl.java:628)
at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:166)
at org.yaml.snakeyaml.comments.CommentEventsCollector$1.peek(CommentEventsCollector.java:59)
at org.yaml.snakeyaml.comments.CommentEventsCollector$1.peek(CommentEventsCollector.java:45)
at org.yaml.snakeyaml.comments.CommentEventsCollector.collectEvents(CommentEventsCollector.java:140)
at org.yaml.snakeyaml.comments.CommentEventsCollector.collectEvents(CommentEventsCollector.java:119)
at org.yaml.snakeyaml.composer.Composer.composeScalarNode(Composer.java:214)
at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:184)
at org.yaml.snakeyaml.composer.Composer.composeValueNode(Composer.java:314)
at org.yaml.snakeyaml.composer.Composer.composeMappingChildren(Composer.java:305)
at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java:286)
at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:188)
at org.yaml.snakeyaml.composer.Composer.composeValueNode(Composer.java:314)
at org.yaml.snakeyaml.composer.Composer.composeMappingChildren(Composer.java:305)
at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java:286)
at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:188)
at org.yaml.snakeyaml.composer.Composer.getNode(Composer.java:115)
at org.yaml.snakeyaml.constructor.BaseConstructor.getData(BaseConstructor.java:135)
at org.springframework.boot.env.OriginTrackedYamlLoader$OriginTrackingConstructor.getData(OriginTrackedYamlLoader.java:99)
at org.yaml.snakeyaml.Yaml$1.next(Yaml.java:514)
at org.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:198)
at org.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:166)
at org.springframework.boot.env.OriginTrackedYamlLoader.load(OriginTrackedYamlLoader.java:84)
at org.springframework.boot.env.YamlPropertySourceLoader.load(YamlPropertySourceLoader.java:50)
at org.springframework.boot.context.config.StandardConfigDataLoader.load(StandardConfigDataLoader.java:54)

 

 

코딩 환경

application.yml

spring:
  datasource:
    url:jdbc:h2:tcp://localhost/~/jpashop
    username: sa
    password:
    driver-class-name: org.h2.Driver

jpa:
  hibernate:
    ddl-auto: create
  properties:
    hibernate:
      format_sql: true

logging:
  level:
    org.hibernate.SQL: debug

 

bulid.gradle

plugins {
   id 'org.springframework.boot' version '2.7.3'
   id 'io.spring.dependency-management' version '1.0.13.RELEASE'
   id 'java'
}

group = 'jpabook'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '11'

configurations {
   compileOnly {
      extendsFrom annotationProcessor
   }
}

repositories {
   mavenCentral()
}

dependencies {
   implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
   implementation 'org.springframework.boot:spring-boot-starter-thymeleaf'
   implementation 'org.springframework.boot:spring-boot-starter-web'
    implementation 'junit:junit:4.13.2'
    compileOnly 'org.projectlombok:lombok'
   runtimeOnly 'com.h2database:h2'
   annotationProcessor 'org.projectlombok:lombok'
   testImplementation 'org.springframework.boot:spring-boot-starter-test'
}

tasks.named('test') {
   useJUnitPlatform()
}

 

 

문제 해결과정

1. yml에 ;MVCC=TRUE를 삭제해보았다. (X)

url:jdbc:h2:tcp://localhost/~/jpashop;MVCC=TRUE

 

2. h2 DB가 실행되지 않아서 발생할 수 있다는 답변을 보고 켜보았다. (X)

 

3. yml을 복붙해서 다시 실행해보았다. (X)

 

4. Test에 @WebAppConfiguration 어노테이션을 추가해보았다. (X)

 

5. H2 버전을 1.4.200으로 변경해보았다. (X)

 

 

 

 

문제해결

정말 어이없지만, yml을 복붙하는 과정에서 들여쓰기가 잘못되어 문제가 발생한 것이었다. 다시 들여쓰기를 수정하자 문제가 해결되었다.