CODEWITHSUNDEEP
javaspringspring-bootswaggerspringdoc
Przemysław Sosna
Przemysław Sosna

Reputation: 121

How to fix http 500 error when accessing /v3/api-docs in Spring Boot with springdoc-openapi-starter-webmvc-ui:2.0.2?

I'm trying to use swagger and springdoc in my little Spring Boot project. I don't know why, but each time I try to access http://localhost:8080/v3/api-docs, i get an internal server error. Here is my stack-trace: https://pastebin.com/y2W5t8He

2023-01-20T17:42:01.751+01:00 ERROR 13407 --- [nio-8080-exec-4] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed: java.lang.NullPointerException: Cannot invoke "org.springframework.data.repository.query.Param.value()" because the return value of "java.lang.reflect.Parameter.getAnnotation(java.lang.Class)" is null] with root cause

java.lang.NullPointerException: Cannot invoke "org.springframework.data.repository.query.Param.value()" because the return value of "java.lang.reflect.Parameter.getAnnotation(java.lang.Class)" is null
    at org.springdoc.core.data.DataRestOperationService.getParameterType(DataRestOperationService.java:242) ~[springdoc-openapi-starter-common-2.0.2.jar:2.0.2]
    at org.springdoc.core.data.DataRestOperationService.buildSearchOperation(DataRestOperationService.java:209) ~[springdoc-openapi-starter-common-2.0.2.jar:2.0.2]
    at org.springdoc.core.data.DataRestOperationService.buildOperation(DataRestOperationService.java:136) ~[springdoc-openapi-starter-common-2.0.2.jar:2.0.2]
    at org.springdoc.core.data.DataRestRouterOperationService.buildRouterOperation(DataRestRouterOperationService.java:289) ~[springdoc-openapi-starter-common-2.0.2.jar:2.0.2]
    at org.springdoc.core.data.DataRestRouterOperationService.buildRouterOperation(DataRestRouterOperationService.java:228) ~[springdoc-openapi-starter-common-2.0.2.jar:2.0.2]
    at org.springdoc.core.data.DataRestRouterOperationService.buildRouterOperationList(DataRestRouterOperationService.java:194) ~[springdoc-openapi-starter-common-2.0.2.jar:2.0.2]
    at org.springdoc.core.data.DataRestRouterOperationService.buildSearchRouterOperationList(DataRestRouterOperationService.java:149) ~[springdoc-openapi-starter-common-2.0.2.jar:2.0.2]
    at org.springdoc.core.providers.SpringRepositoryRestResourceProvider.lambda$findSearchControllers$13(SpringRepositoryRestResourceProvider.java:383) ~[springdoc-openapi-starter-common-2.0.2.jar:2.0.2]
    at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) ~[na:na]
    at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:179) ~[na:na]
    at java.base/java.util.HashMap$ValueSpliterator.forEachRemaining(HashMap.java:1787) ~[na:na]
    at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509) ~[na:na]
    at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) ~[na:na]
    at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) ~[na:na]
    at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) ~[na:na]
    at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[na:na]
    at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:596) ~[na:na]
    at org.springdoc.core.providers.SpringRepositoryRestResourceProvider.findSearchControllers(SpringRepositoryRestResourceProvider.java:383) ~[springdoc-openapi-starter-common-2.0.2.jar:2.0.2]
    at org.springdoc.core.providers.SpringRepositoryRestResourceProvider.findSearchResourceMappings(SpringRepositoryRestResourceProvider.java:362) ~[springdoc-openapi-starter-common-2.0.2.jar:2.0.2]
    at org.springdoc.core.providers.SpringRepositoryRestResourceProvider.getRouterOperations(SpringRepositoryRestResourceProvider.java:276) ~[springdoc-openapi-starter-common-2.0.2.jar:2.0.2]
    at org.springdoc.webmvc.api.OpenApiResource.lambda$getPaths$1(OpenApiResource.java:170) ~[springdoc-openapi-starter-webmvc-api-2.0.2.jar:2.0.2]
    at java.base/java.util.Optional.ifPresent(Optional.java:178) ~[na:na]
    at org.springdoc.webmvc.api.OpenApiResource.lambda$getPaths$2(OpenApiResource.java:169) ~[springdoc-openapi-starter-webmvc-api-2.0.2.jar:2.0.2]
    at java.base/java.util.Optional.ifPresent(Optional.java:178) ~[na:na]
    at org.springdoc.webmvc.api.OpenApiResource.getPaths(OpenApiResource.java:165) ~[springdoc-openapi-starter-webmvc-api-2.0.2.jar:2.0.2]
    at org.springdoc.api.AbstractOpenApiResource.getOpenApi(AbstractOpenApiResource.java:366) ~[springdoc-openapi-starter-common-2.0.2.jar:2.0.2]
    at org.springdoc.webmvc.api.OpenApiResource.openapiJson(OpenApiResource.java:140) ~[springdoc-openapi-starter-webmvc-api-2.0.2.jar:2.0.2]
    at org.springdoc.webmvc.api.OpenApiWebMvcResource.openapiJson(OpenApiWebMvcResource.java:117) ~[springdoc-openapi-starter-webmvc-api-2.0.2.jar:2.0.2]
    at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104) ~[na:na]
    at java.base/java.lang.reflect.Method.invoke(Method.java:578) ~[na:na]
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:207) ~[spring-web-6.0.3.jar:6.0.3]
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:152) ~[spring-web-6.0.3.jar:6.0.3]
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:117) ~[spring-webmvc-6.0.3.jar:6.0.3]
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:884) ~[spring-webmvc-6.0.3.jar:6.0.3]
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:797) ~[spring-webmvc-6.0.3.jar:6.0.3]
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-6.0.3.jar:6.0.3]
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1080) ~[spring-webmvc-6.0.3.jar:6.0.3]
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:973) ~[spring-webmvc-6.0.3.jar:6.0.3]
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1010) ~[spring-webmvc-6.0.3.jar:6.0.3]
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:902) ~[spring-webmvc-6.0.3.jar:6.0.3]
    at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:705) ~[tomcat-embed-core-10.1.4.jar:6.0]
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:884) ~[spring-webmvc-6.0.3.jar:6.0.3]
    at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:814) ~[tomcat-embed-core-10.1.4.jar:6.0]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:223) ~[tomcat-embed-core-10.1.4.jar:10.1.4]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:158) ~[tomcat-embed-core-10.1.4.jar:10.1.4]
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-10.1.4.jar:10.1.4]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:185) ~[tomcat-embed-core-10.1.4.jar:10.1.4]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:158) ~[tomcat-embed-core-10.1.4.jar:10.1.4]
    at io.sentry.spring.jakarta.SentryUserFilter.doFilterInternal(SentryUserFilter.java:56) ~[sentry-spring-jakarta-6.12.1.jar:na]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.0.3.jar:6.0.3]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:185) ~[tomcat-embed-core-10.1.4.jar:10.1.4]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:158) ~[tomcat-embed-core-10.1.4.jar:10.1.4]
    at org.springframework.security.web.FilterChainProxy.lambda$doFilterInternal$3(FilterChainProxy.java:231) ~[spring-security-web-6.0.1.jar:6.0.1]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:365) ~[spring-security-web-6.0.1.jar:6.0.1]
    at org.springframework.security.web.access.intercept.AuthorizationFilter.doFilter(AuthorizationFilter.java:100) ~[spring-security-web-6.0.1.jar:6.0.1]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) ~[spring-security-web-6.0.1.jar:6.0.1]
    at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:126) ~[spring-security-web-6.0.1.jar:6.0.1]
    at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:120) ~[spring-security-web-6.0.1.jar:6.0.1]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) ~[spring-security-web-6.0.1.jar:6.0.1]
    at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:100) ~[spring-security-web-6.0.1.jar:6.0.1]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) ~[spring-security-web-6.0.1.jar:6.0.1]
    at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:179) ~[spring-security-web-6.0.1.jar:6.0.1]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) ~[spring-security-web-6.0.1.jar:6.0.1]
    at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) ~[spring-security-web-6.0.1.jar:6.0.1]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) ~[spring-security-web-6.0.1.jar:6.0.1]
    at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:107) ~[spring-security-web-6.0.1.jar:6.0.1]
    at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:93) ~[spring-security-web-6.0.1.jar:6.0.1]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) ~[spring-security-web-6.0.1.jar:6.0.1]
    at org.springframework.security.web.csrf.CsrfFilter.doFilterInternal(CsrfFilter.java:116) ~[spring-security-web-6.0.1.jar:6.0.1]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.0.3.jar:6.0.3]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) ~[spring-security-web-6.0.1.jar:6.0.1]
    at org.springframework.security.web.header.HeaderWriterFilter.doHeadersAfter(HeaderWriterFilter.java:90) ~[spring-security-web-6.0.1.jar:6.0.1]
    at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:75) ~[spring-security-web-6.0.1.jar:6.0.1]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.0.3.jar:6.0.3]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) ~[spring-security-web-6.0.1.jar:6.0.1]
    at org.springframework.security.web.context.SecurityContextHolderFilter.doFilter(SecurityContextHolderFilter.java:82) ~[spring-security-web-6.0.1.jar:6.0.1]
    at org.springframework.security.web.context.SecurityContextHolderFilter.doFilter(SecurityContextHolderFilter.java:69) ~[spring-security-web-6.0.1.jar:6.0.1]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) ~[spring-security-web-6.0.1.jar:6.0.1]
    at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:62) ~[spring-security-web-6.0.1.jar:6.0.1]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.0.3.jar:6.0.3]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) ~[spring-security-web-6.0.1.jar:6.0.1]
    at org.springframework.security.web.session.DisableEncodeUrlFilter.doFilterInternal(DisableEncodeUrlFilter.java:42) ~[spring-security-web-6.0.1.jar:6.0.1]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.0.3.jar:6.0.3]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) ~[spring-security-web-6.0.1.jar:6.0.1]
    at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:233) ~[spring-security-web-6.0.1.jar:6.0.1]
    at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:191) ~[spring-security-web-6.0.1.jar:6.0.1]
    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:351) ~[spring-web-6.0.3.jar:6.0.3]
    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:267) ~[spring-web-6.0.3.jar:6.0.3]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:185) ~[tomcat-embed-core-10.1.4.jar:10.1.4]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:158) ~[tomcat-embed-core-10.1.4.jar:10.1.4]
    at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-6.0.3.jar:6.0.3]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.0.3.jar:6.0.3]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:185) ~[tomcat-embed-core-10.1.4.jar:10.1.4]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:158) ~[tomcat-embed-core-10.1.4.jar:10.1.4]
    at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-6.0.3.jar:6.0.3]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.0.3.jar:6.0.3]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:185) ~[tomcat-embed-core-10.1.4.jar:10.1.4]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:158) ~[tomcat-embed-core-10.1.4.jar:10.1.4]
    at io.sentry.spring.jakarta.tracing.SentryTracingFilter.doFilterInternal(SentryTracingFilter.java:87) ~[sentry-spring-jakarta-6.12.1.jar:na]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.0.3.jar:6.0.3]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:185) ~[tomcat-embed-core-10.1.4.jar:10.1.4]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:158) ~[tomcat-embed-core-10.1.4.jar:10.1.4]
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-6.0.3.jar:6.0.3]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.0.3.jar:6.0.3]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:185) ~[tomcat-embed-core-10.1.4.jar:10.1.4]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:158) ~[tomcat-embed-core-10.1.4.jar:10.1.4]
    at io.sentry.spring.jakarta.SentrySpringFilter.doFilterInternal(SentrySpringFilter.java:71) ~[sentry-spring-jakarta-6.12.1.jar:na]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.0.3.jar:6.0.3]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:185) ~[tomcat-embed-core-10.1.4.jar:10.1.4]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:158) ~[tomcat-embed-core-10.1.4.jar:10.1.4]
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:177) ~[tomcat-embed-core-10.1.4.jar:10.1.4]
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) ~[tomcat-embed-core-10.1.4.jar:10.1.4]
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542) ~[tomcat-embed-core-10.1.4.jar:10.1.4]
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:119) ~[tomcat-embed-core-10.1.4.jar:10.1.4]
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-10.1.4.jar:10.1.4]
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) ~[tomcat-embed-core-10.1.4.jar:10.1.4]
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357) ~[tomcat-embed-core-10.1.4.jar:10.1.4]
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:400) ~[tomcat-embed-core-10.1.4.jar:10.1.4]
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-10.1.4.jar:10.1.4]
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:859) ~[tomcat-embed-core-10.1.4.jar:10.1.4]
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1734) ~[tomcat-embed-core-10.1.4.jar:10.1.4]
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) ~[tomcat-embed-core-10.1.4.jar:10.1.4]
    at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) ~[tomcat-embed-core-10.1.4.jar:10.1.4]
    at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-embed-core-10.1.4.jar:10.1.4]
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-10.1.4.jar:10.1.4]
    at java.base/java.lang.Thread.run(Thread.java:1589) ~[na:na]

My build.gradle: https://pastebin.com/CqMJRcCz

plugins {
    id 'java'
    id 'org.springframework.boot' version '3.0.1'
    id 'io.spring.dependency-management' version '1.1.0'
}

group = 'com.example'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '19'

configurations {
    compileOnly {
        extendsFrom annotationProcessor
    }
}

repositories {
    mavenCentral()
}

dependencies {

    implementation 'org.springframework.boot:spring-boot-starter-data-rest'
    implementation 'org.springframework.boot:spring-boot-starter-groovy-templates'
    implementation 'org.springframework.boot:spring-boot-starter-web'
    implementation 'org.springframework.boot:spring-boot-starter-websocket'
    implementation 'javax.validation:validation-api:2.0.1.Final'
    implementation 'org.postgresql:postgresql:42.5.1'
    implementation 'io.sentry:sentry-spring-boot-starter:6.12.1'
    implementation 'io.sentry:sentry-spring-boot-starter-jakarta:6.12.1'
    implementation 'io.sentry:sentry-logback:6.12.1'
    implementation 'org.springdoc:springdoc-openapi-starter-webmvc-ui:2.0.2'
    implementation 'org.springdoc:springdoc-openapi-starter-common:2.0.2'



    implementation 'org.springframework.boot:spring-boot-starter-security'
    implementation 'javax.servlet:javax.servlet-api:4.0.1'
    implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
    implementation 'org.springframework.restdocs:spring-restdocs-mockmvc:2.0.6.RELEASE'
    implementation 'org.hibernate.validator:hibernate-validator:8.0.0.Final'

    compileOnly 'org.projectlombok:lombok'
    developmentOnly 'org.springframework.boot:spring-boot-devtools'
    annotationProcessor 'org.projectlombok:lombok'
    testImplementation 'org.springframework.boot:spring-boot-starter-test'
}

tasks.named('test') {
    useJUnitPlatform()
}
apply plugin: 'java'

Can you please help me?

I've tried restarting, reloading my dependencies and checking different dependencies.

Upvotes: 12

Views: 21496

Answers (6)

Lotzy
Lotzy

Reputation: 716

If anybody uses Spring Boot v3.4.0 or later with springdoc-openapi-starter-webmvc-ui v2.6.0 and gets similar error on the swagger page, update springdoc-openapi-starter-webmvc-ui to v2.7.0 or later should solve the issue.

Upvotes: 12

Obenembot
Obenembot

Reputation: 1

In my case if was cause by me adding this : implementation ("org.springframework.boot:spring-boot-starter-data-rest")

Upvotes: 0

Girish G
Girish G

Reputation: 54

Another way some one might help in Spring Boot 3 is way of adding these two dependencies

implementation("org.springdoc:springdoc-openapi-starter-webmvc-ui:2.2.0")
implementation 'io.swagger.core.v3:swagger-annotations:2.2.15'

make sure to exclude it from other SDKs if its referencing.

Upvotes: 0

h1alexbel
h1alexbel

Reputation: 95

my problem was fixed by removing an additional slash (/) from the request. This one should return you an expected JSON response: /v3/api-docs, while this one: /v3/api-docs/ will return you:

{
  "message": "No static resource v3/api-docs."
}

Upvotes: 1

Ernestorumo
Ernestorumo

Reputation: 83

Since you are using "2.0.2" version of springdoc, you put @Hidden annotation in repositories that produce the error. In this entry it´s explained with more detail: https://stackoverflow.com/a/74378329/7744621

Upvotes: 3

Pawel
Pawel

Reputation: 71

I was able to fix (workaround) the error by adding @Param annotation to all repository methods implemented with JpaRepository, ex.:

Optional<File> findByFileType(@Param("fileType") String fileType);

When the method did not have any @Param I was getting the 500 error, when I added the annotation to all methods in all repositories now the Swagger loads correctly.

Edit. After more testing it seems the issue is in my case only with the only 2 paramters method in my repositories, so I had only to add the @Param to one method in all my repositories:

Optional<Dictionary> findByDictionaryNameAndDictionaryValue( @Param("dictionaryName") String dictionaryName, @Param("dictionaryValue") String dictionaryValue);

The second method in this repository and other repositories do not need @Param annotation in my case.

Upvotes: 5

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