failed to instantiate com.fasterxml.jackson.datatype.jsr310.javatimemodule 에러 원인과 해결 방법

에러내용

아래의 에러메세지가 뜨며 프로그램 실행에 실패했다.

org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.fasterxml.jackson.datatype.jsr310.JavaTimeModule]: Unresolvable class definition; nested exception is java.lang.NoClassDefFoundError: com/fasterxml/jackson/databind/ser/std/ToStringSerializerBase
at org.springframework.beans.BeanUtils.instantiateClass (BeanUtils.java:149)
at org.springframework.http.converter.json.Jackson2ObjectMapperBuilder.registerWellKnownModulesIfAvailable (Jackson2ObjectMapperBuilder.java:805)
at org.springframework.http.converter.json.Jackson2ObjectMapperBuilder.configure (Jackson2ObjectMapperBuilder.java:669)
at org.springframework.http.converter.json.Jackson2ObjectMapperBuilder.build (Jackson2ObjectMapperBuilder.java:652)
at org.springframework.http.converter.json.MappingJackson2HttpMessageConverter.<init> (MappingJackson2HttpMessageConverter.java:59)
at org.springframework.http.converter.support.AllEncompassingFormHttpMessageConverter.<init> (AllEncompassingFormHttpMessageConverter.java:76)
at org.springframework.web.client.RestTemplate.<init> (RestTemplate.java:147)

 

원인

위의 메세지를 구글링 해보니 jackson-datatype 라이브러리의 버전이 안맞아 생기는 오류로 파악되었다. 

 

해결 방법

build.gradle 의존성 주입에 사용된 기존 'com.fasterxml.jackson.datatype:jackson-datatype-jsr310' 라이브러리를 'com.fasterxml.jackson.datatype:jackson-datatype-jdk8'로 변경하니 정상적으로 프로그램이 실행되었다!

 

참고

https://stackoverflow.com/questions/62991628/how-to-fix-org-springframework-beans-beaninstantiationexception-failed-to-insta

How to fix org.springframework.beans.BeanInstantiationException: Failed to instantiate

https://github.com/FasterXML/jackson-modules-java8/issues/101

[Bug] [Help resolving missing deps needed] Exception in `JavaTimeModule` · Issue #101 · FasterXML/jackson-modules-java8