[JAVA] java.lang.NoClassDefFoundError: javax/annotation/PostConstruct 해결법

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SPEC

Spring boot version 2.6.2
Java 1.8 -> RestTemplate을 이용한 API 통신

 

에러

java.lang.NoClassDefFoundError: javax/annotation/PostConstruct

java.lang.NoClassDefFoundError: javax/annotation/PostConstruct
	at org.apache.catalina.core.DefaultInstanceManager.findPostConstruct(DefaultInstanceManager.java:693) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.core.DefaultInstanceManager.populateAnnotationsCache(DefaultInstanceManager.java:370) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:172) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:165) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:105) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4613) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5256) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1396) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1386) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
	at java.util.concurrent.FutureTask.run(FutureTask.java:317) ~[?:?]
	at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
	at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:145) ~[?:?]
	at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:919) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:835) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1396) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1386) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
	at java.util.concurrent.FutureTask.run(FutureTask.java:317) ~[?:?]
	at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
	at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:145) ~[?:?]
	at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:919) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:263) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.core.StandardService.startInternal(StandardService.java:432) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:927) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
	at org.apache.catalina.startup.Tomcat.start(Tomcat.java:486) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

 

 

원인

jakarta.annotation Maven Dependency 추가 후 Java Version 자동 변경

IDEA인 IntelliJ 상에서 자동 setting 변경이 일어남

<dependency>
    <groupId>jakarta.annotation</groupId>
    <artifactId>jakarta.annotation-api</artifactId>
    <version>2.1.1</version>
</dependency>

 

해결

 

Project Structure(Project Setting)  (Ctrl + Alt + Shift + S) > Project > SDK => openjdk-19 > 1.8 자바 버전 다운그레이드(원래 프로젝트 1.8로 진행중이었음)