JWT String argument cannot be null or empty.

Question

계속 이런 오류가 발생하는 상황인데 어디가 문제인걸까요........ 2023-10-15 19:32:08.071 INFO 20572 --- [nio-8080-exec-2] c.newus.traders.user.jwt.TokenProvider : JWT claims string is empty. java.lang.IllegalArgumentException: JWT String argument cannot be null or empty. at io.jsonwebtoken.lang.Assert.hasText(Assert.java:132) ~[jjwt-api-0.11.5.jar:0.11.5] at io.jsonwebtoken.impl.DefaultJwtParser.parse(DefaultJwtParser.java:527) ~[jjwt-impl-0.11.5.jar:0.11.5] at io.jsonwebtoken.impl.DefaultJwtParser.parseClaimsJws(DefaultJwtParser.java:589) ~[jjwt-impl-0.11.5.jar:0.11.5] at io.jsonwebtoken.impl.ImmutableJwtParser.parseClaimsJws(ImmutableJwtParser.java:173) ~[jjwt-impl-0.11.5.jar:0.11.5] at com.newus.traders.user.jwt.TokenProvider.validateToken(TokenProvider.java:141) ~[main/:na] at com.newus.traders.user.jwt.JwtFilter.doFilterInternal(JwtFilter.java:40) [main/:na] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) [spring-web-5.3.29.jar:5.3.29] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346) [spring-security-web-5.7.10.jar:5.7.10] at org.springframework.web.filter.CorsFilter.doFilterInternal(CorsFilter.java:91) [spring-web-5.3.29.jar:5.3.29] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) [spring-web-5.3.29.jar:5.3.29] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346) [spring-security-web-5.7.10.jar:5.7.10] at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:103) [spring-security-web-5.7.10.jar:5.7.10] at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:89) [spring-security-web-5.7.10.jar:5.7.10] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346) [spring-security-web-5.7.10.jar:5.7.10] at org.springframework.security.web.header.HeaderWriterFilter.doHeadersAfter(HeaderWriterFilter.java:90) [spring-security-web-5.7.10.jar:5.7.10] at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:75) [spring-security-web-5.7.10.jar:5.7.10] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) [spring-web-5.3.29.jar:5.3.29] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346) [spring-security-web-5.7.10.jar:5.7.10] at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:112) [spring-security-web-5.7.10.jar:5.7.10] at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:82) [spring-security-web-5.7.10.jar:5.7.10] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346) [spring-security-web-5.7.10.jar:5.7.10] at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:55) [spring-security-web-5.7.10.jar:5.7.10] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) [spring-web-5.3.29.jar:5.3.29] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346) [spring-security-web-5.7.10.jar:5.7.10] at org.springframework.security.web.session.DisableEncodeUrlFilter.doFilterInternal(DisableEncodeUrlFilter.java:42) [spring-security-web-5.7.10.jar:5.7.10] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) [spring-web-5.3.29.jar:5.3.29] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346) [spring-security-web-5.7.10.jar:5.7.10] at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:221) [spring-security-web-5.7.10.jar:5.7.10] at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:186) [spring-security-web-5.7.10.jar:5.7.10] at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:354) [spring-web-5.3.29.jar:5.3.29] at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:267) [spring-web-5.3.29.jar:5.3.29] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178) [tomcat-embed-core-9.0.79.jar:9.0.79] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153) [tomcat-embed-core-9.0.79.jar:9.0.79] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) [spring-web-5.3.29.jar:5.3.29] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) [spring-web-5.3.29.jar:5.3.29] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178) [tomcat-embed-core-9.0.79.jar:9.0.79] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153) [tomcat-embed-core-9.0.79.jar:9.0.79] at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) [spring-web-5.3.29.jar:5.3.29] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) [spring-web-5.3.29.jar:5.3.29] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178) [tomcat-embed-core-9.0.79.jar:9.0.79] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153) [tomcat-embed-core-9.0.79.jar:9.0.79] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) [spring-web-5.3.29.jar:5.3.29] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) [spring-web-5.3.29.jar:5.3.29] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178) [tomcat-embed-core-9.0.79.jar:9.0.79] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153) [tomcat-embed-core-9.0.79.jar:9.0.79] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:167) [tomcat-embed-core-9.0.79.jar:9.0.79] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90) [tomcat-embed-core-9.0.79.jar:9.0.79] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:481) [tomcat-embed-core-9.0.79.jar:9.0.79] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:130) [tomcat-embed-core-9.0.79.jar:9.0.79] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93) [tomcat-embed-core-9.0.79.jar:9.0.79] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) [tomcat-embed-core-9.0.79.jar:9.0.79] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.79.jar:9.0.79] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:390) [tomcat-embed-core-9.0.79.jar:9.0.79] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63) [tomcat-embed-core-9.0.79.jar:9.0.79] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:926) [tomcat-embed-core-9.0.79.jar:9.0.79] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1790) [tomcat-embed-core-9.0.79.jar:9.0.79] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) [tomcat-embed-core-9.0.79.jar:9.0.79] at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) [tomcat-embed-core-9.0.79.jar:9.0.79] at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) [tomcat-embed-core-9.0.79.jar:9.0.79] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.79.jar:9.0.79] at java.lang.Thread.run(Thread.java:750) [na:1.8.0_371]

silvernine · Answer

안녕하세요 🙂 Spring Boot 3.4.0 (SNAPSHOT) 버전에 맞춰 샘플 코드를 업데이트했습니다. 아래 링크에서 Java와 Kotlin 버전의 최신 샘플 코드를 확인하실 수 있으니 참고 부탁드립니다. Java :  https://github.com/SilverNine/spring-boot-jwt-tutorial Kotlin :  https://github.com/SilverNine/spring-boot-jwt-tutorial-kotlin

communityai8509 · Answer

안녕하세요 윤희라 님, 인프런 AI 인턴이에요.
해당 오류는 JWT (JSON Web Token)이 비어 있거나 null인 경우 발생하는 것으로 보입니다.
오류의 원인을 확인하기 위해서는 프로그램의 소스 코드와 해당 오류가 발생하는 부분을 확인해야 합니다.
해당 오류는 JWT의 인증서명을 파싱하는 과정에서 비어 있는 JWT 문자열이 전달되었을 때 발생하는 것으로 예상되며, 이는 JWT 생성 및 유효성 검사 로직에 문제가 있는지 확인해야 합니다. JWT 관련 코드를 다시 살펴보고 JWT 생성 및 파싱 과정에서 올바른 값이 전달되는지 확인해 보시기 바랍니다. 이외에도 JWT 라이브러리 버전이나 설정 관련 문제로 인해서도 발생할 수 있으니 해당 부분도 검토해 보시기를 권장합니다. 문제 해결을 위해서는 프로그래밍 환경과 JWT 관련 코드 등 구체적인 정보가 필요합니다. 도움이 되었으면 좋겠습니다. 감사합니다!