서버 실행 시 에러가 납니다

Question

spring 버전으로 springfox대신 springdoc을 사용했습니다. 따로 코드상 오류는 안나지만 서버를 실행시키면 에러가 뜹니다.   SwaggerConfig.java   에러내용입니다. 023-08-04 18:21:26.795 ERROR 8588 --- [ restartedMain] o.s.boot.SpringApplication : Application run failed org.springframework.beans.factory.BeanDefinitionStoreException: Failed to process import candidates for configuration class [com.example.demo.DemoApplication]; nested exception is java.lang.IllegalArgumentException: Unresolvable class definition for class [org.springdoc.core.conditions.MultipleOpenApiSupportCondition] at org.springframework.context.annotation.ConfigurationClassParser.processImports( ConfigurationClassParser.java:609 ) ~[spring-context-5.3.25.jar:5.3.25] at org.springframework.context.annotation.ConfigurationClassParser.access$800( ConfigurationClassParser.java:110 ) ~[spring-context-5.3.25.jar:5.3.25] at org.springframework.context.annotation.ConfigurationClassParser$DeferredImportSelectorGroupingHandler.lambda$processGroupImports$1( ConfigurationClassParser.java:812 ) ~[spring-context-5.3.25.jar:5.3.25] at java.base/java.util.ArrayList.forEach( ArrayList.java:1541 ) ~[na:na] at org.springframework.context.annotation.ConfigurationClassParser$DeferredImportSelectorGroupingHandler.processGroupImports( ConfigurationClassParser.java:809 ) ~[spring-context-5.3.25.jar:5.3.25] at org.springframework.context.annotation.ConfigurationClassParser$DeferredImportSelectorHandler.process( ConfigurationClassParser.java:780 ) ~[spring-context-5.3.25.jar:5.3.25] at org.springframework.context.annotation.ConfigurationClassParser.parse( ConfigurationClassParser.java:192 ) ~[spring-context-5.3.25.jar:5.3.25] at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions( ConfigurationClassPostProcessor.java:331 ) ~[spring-context-5.3.25.jar:5.3.25] at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry( ConfigurationClassPostProcessor.java:247 ) ~[spring-context-5.3.25.jar:5.3.25] at org.springframework.context.support .PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors( PostProcessorRegistrationDelegate.java:311 ) ~[spring-context-5.3.25.jar:5.3.25] at org.springframework.context.support .PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors( PostProcessorRegistrationDelegate.java:112 ) ~[spring-context-5.3.25.jar:5.3.25] at org.springframework.context.support .AbstractApplicationContext.invokeBeanFactoryPostProcessors( AbstractApplicationContext.java:746 ) ~[spring-context-5.3.25.jar:5.3.25] at org.springframework.context.support .AbstractApplicationContext.refresh( AbstractApplicationContext.java:564 ) ~[spring-context-5.3.25.jar:5.3.25] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh( ServletWebServerApplicationContext.java:147 ) ~[spring-boot-2.7.8.jar:2.7.8] at org.springframework.boot.SpringApplication.refresh( SpringApplication.java:731 ) ~[spring-boot-2.7.8.jar:2.7.8] at org.springframework.boot.SpringApplication.refreshContext( SpringApplication.java:408 ) ~[spring-boot-2.7.8.jar:2.7.8] at org.springframework.boot.SpringApplication.run ( SpringApplication.java:307 ) ~[spring-boot-2.7.8.jar:2.7.8] at org.springframework.boot.SpringApplication.run ( SpringApplication.java:1303 ) ~[spring-boot-2.7.8.jar:2.7.8] at org.springframework.boot.SpringApplication.run ( SpringApplication.java:1292 ) ~[spring-boot-2.7.8.jar:2.7.8] at com.example.demo.DemoApplication.main( DemoApplication.java:15 ) ~[classes/:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke( NativeMethodAccessorImpl.java:62 ) ~[na:na] at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke( DelegatingMethodAccessorImpl.java:43 ) ~[na:na] at java.base/java.lang.reflect.Method.invoke( Method.java:566 ) ~[na:na] at org.springframework.boot.devtools.restart.RestartLauncher.run ( RestartLauncher.java:49 ) ~[spring-boot-devtools-2.7.8.jar:2.7.8] Caused by: java.lang.IllegalArgumentException: Unresolvable class definition for class [org.springdoc.core.conditions.MultipleOpenApiSupportCondition] at org.springframework.util.ClassUtils.resolveClassName( ClassUtils.java:331 ) ~[spring-core-5.3.25.jar:5.3.25] at org.springframework.context.annotation.ConditionEvaluator.getCondition( ConditionEvaluator.java:124 ) ~[spring-context-5.3.25.jar:5.3.25] at org.springframework.context.annotation.ConditionEvaluator.shouldSkip( ConditionEvaluator.java:96 ) ~[spring-context-5.3.25.jar:5.3.25] at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass( ConfigurationClassParser.java:225 ) ~[spring-context-5.3.25.jar:5.3.25] at org.springframework.context.annotation.ConfigurationClassParser.processImports( ConfigurationClassParser.java:599 ) ~[spring-context-5.3.25.jar:5.3.25] ... 24 common frames omitted Caused by: java.lang.UnsupportedClassVersionError: org/springdoc/core/conditions/MultipleOpenApiSupportCondition has been compiled by a more recent version of the Java Runtime (class file version 61.0), this version of the Java Runtime only recognizes class file versions up to 55.0 at java.base/java.lang.ClassLoader.defineClass1(Native Method) ~[na:na] at java.base/java.lang.ClassLoader.defineClass( ClassLoader.java:1016 ) ~[na:na] at java.base/java.security.SecureClassLoader.defineClass( SecureClassLoader.java:174 ) ~[na:na] at java.base/jdk.internal.loader.BuiltinClassLoader.defineClass( BuiltinClassLoader.java:800 ) ~[na:na] at java.base/jdk.internal.loader.BuiltinClassLoader.findClassOnClassPathOrNull( BuiltinClassLoader.java:698 ) ~[na:na] at java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull( BuiltinClassLoader.java:621 ) ~[na:na] at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass( BuiltinClassLoader.java:579 ) ~[na:na] at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass( ClassLoaders.java:178 ) ~[na:na] at java.base/java.lang.ClassLoader.loadClass( ClassLoader.java:521 ) ~[na:na] at java.base/java.lang.Class.forName0(Native Method) ~[na:na] at java.base/java.lang.Class.forName( Class.java:398 ) ~[na:na] at org.springframework.boot.devtools.restart.classloader.RestartClassLoader.loadClass( RestartClassLoader.java:145 ) ~[spring-boot-devtools-2.7.8.jar:2.7.8] at java.base/java.lang.ClassLoader.loadClass( ClassLoader.java:521 ) ~[na:na] at java.base/java.lang.Class.forName0(Native Method) ~[na:na] at java.base/java.lang.Class.forName( Class.java:398 ) ~[na:na] at org.springframework.util.ClassUtils.forName( ClassUtils.java:284 ) ~[spring-core-5.3.25.jar:5.3.25] at org.springframework.util.ClassUtils.resolveClassName( ClassUtils.java:324 ) ~[spring-core-5.3.25.jar:5.3.25] ... 28 common frames omitted

snow · Answer

Caused by: java.lang.UnsupportedClassVersionError: org/springdoc/core/conditions/MultipleOpenApiSupportCondition has been compiled by a more recent version of the Java Runtime (class file version 61.0), this version of the Java Runtime only recognizes class file versions up to 55.0 class file version 61.0 이상의 버전을 사용하지 않아서 생긴 문제로 보이네요. (java se 17 = 61) 만약 spring boot 2 버전을 사용하신다면 아래에 링크를 참고하면 좋을거 같아요. 지나가다 보여서... 참고만 하시면 될거 같아요 :) https://springdoc.org/v1/