ClassCastException in Kafka-UI with Keycloak Integration

[juliusdev]

Issue submitter TODO list

• I've looked up my issue in FAQ
• I've searched for an already existing issues here
• I've tried running master-labeled docker image and the issue still persists there
• I'm running a supported version of the application which is listed here

Describe the bug (actual behavior)

Hi,

This PR addresses a recurring ClassCastException error observed in the Kafka-UI logs when interacting with my company's Keycloak IAM instance. While authentication functions correctly, the error message indicates an incompatibility between the DefaultOidcUser returned by Keycloak and the expected UserDetails interface.

ERROR [reactor-http-epoll-2] r.c.p.Operators: Operator called default onErrorDropped
reactor.core.Exceptions$ErrorCallbackNotImplemented: java.lang.ClassCastException: Cannot cast org.springframework.security.oauth2.core.oidc.user.DefaultOidcUser to org.springframework.security.core.userdetails.UserDetails
Caused by: java.lang.ClassCastException: Cannot cast org.springframework.security.oauth2.core.oidc.user.DefaultOidcUser to org.springframework.security.core.userdetails.UserDetails

Expected behavior

no casting exception.

Your installation details

Here my config.yml parameters :

auth:
  type: OAUTH2
  oauth2:
    client:
      keycloak:
        clientId: kafka-ui
        clientSecret: xxxxxx
        scope: openid
        issuer-uri: https://domain/v2/realms/xxxx
        user-name-attribute: preferred_username
        client-name: keycloak
        provider: keycloak
        custom-params:
          type: keycloak

Steps to reproduce

• Run Keycloak 20 with docker
• Create a new keycloak client kafka-ui
• Copy the config.yml (check the PR)
• Authenticate with your credentials
• Check the logs

Screenshots

No response

Logs

ERROR [reactor-http-epoll-2] r.c.p.Operators: Operator called default onErrorDropped
reactor.core.Exceptions$ErrorCallbackNotImplemented: java.lang.ClassCastException: Cannot cast org.springframework.security.oauth2.core.oidc.user.DefaultOidcUser to org.springframework.security.core.userdetails.UserDetails
Caused by: java.lang.ClassCastException: Cannot cast org.springframework.security.oauth2.core.oidc.user.DefaultOidcUser to org.springframework.security.core.userdetails.UserDetails
        at java.base/java.lang.Class.cast(Class.java:3889)
        at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:113)
        at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:129)
        at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:158)
        at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1839)
        at reactor.core.publisher.MonoCacheTime.subscribeOrReturn(MonoCacheTime.java:151)
        at reactor.core.publisher.Mono.subscribe(Mono.java:4480)
        at reactor.core.publisher.Mono.subscribeWith(Mono.java:4561)
        at reactor.core.publisher.Mono.subscribe(Mono.java:4323)
        at com.provectus.kafka.ui.service.audit.AuditService.audit(AuditService.java:186)
        at com.provectus.kafka.ui.controller.AbstractController.audit(AbstractController.java:30)
        at com.provectus.kafka.ui.controller.BrokersController.lambda$getBrokers$0(BrokersController.java:45)
        at reactor.core.publisher.FluxDoOnEach$DoOnEachSubscriber.onNext(FluxDoOnEach.java:164)
        at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.complete(MonoIgnoreThen.java:292)
        at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.onNext(MonoIgnoreThen.java:187)
        at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.subscribeNext(MonoIgnoreThen.java:236)
        at reactor.core.publisher.MonoIgnoreThen.subscribe(MonoIgnoreThen.java:51)
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64)
        at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:165)
        at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:79)
        at reactor.core.publisher.FluxPeek$PeekSubscriber.onNext(FluxPeek.java:200)
        at reactor.core.publisher.FluxPeek$PeekSubscriber.onNext(FluxPeek.java:200)
        at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.complete(MonoIgnoreThen.java:292)
        at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.onNext(MonoIgnoreThen.java:187)
        at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:158)
        at reactor.core.publisher.MonoZip$ZipCoordinator.signal(MonoZip.java:293)
        at reactor.core.publisher.MonoZip$ZipInner.onNext(MonoZip.java:474)
        at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onNext(MonoPeekTerminal.java:180)
        at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2545)
        at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.request(MonoPeekTerminal.java:139)
        at reactor.core.publisher.MonoZip$ZipInner.onSubscribe(MonoZip.java:466)
        at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onSubscribe(MonoPeekTerminal.java:152)
        at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:55)
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64)
        at reactor.core.publisher.MonoZip$ZipCoordinator.request(MonoZip.java:216)
        at reactor.core.publisher.MonoFlatMap$FlatMapMain.request(MonoFlatMap.java:194)
        at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.onSubscribe(MonoIgnoreThen.java:134)
        at reactor.core.publisher.MonoFlatMap$FlatMapMain.onSubscribe(MonoFlatMap.java:117)
        at reactor.core.publisher.MonoZip.subscribe(MonoZip.java:125)
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64)
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:53)
        at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.subscribeNext(MonoIgnoreThen.java:240)
        at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.onComplete(MonoIgnoreThen.java:203)
        at reactor.core.publisher.MonoFlatMap$FlatMapMain.onComplete(MonoFlatMap.java:189)
        at reactor.core.publisher.Operators.complete(Operators.java:137)
        at reactor.core.publisher.MonoZip.subscribe(MonoZip.java:121)
        at reactor.core.publisher.Mono.subscribe(Mono.java:4495)
        at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.subscribeNext(MonoIgnoreThen.java:263)
        at reactor.core.publisher.MonoIgnoreThen.subscribe(MonoIgnoreThen.java:51)
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64)
        at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:165)
        at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:79)
        at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:74)
        at reactor.core.publisher.MonoNext$NextSubscriber.onNext(MonoNext.java:82)
        at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.innerNext(FluxConcatMapNoPrefetch.java:258)
        at reactor.core.publisher.FluxConcatMap$ConcatMapInner.onNext(FluxConcatMap.java:863)
        at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:129)
        at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onNext(MonoPeekTerminal.java:180)
        at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2545)
        at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.request(MonoPeekTerminal.java:139)
        at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.request(FluxMapFuseable.java:171)
        at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.request(Operators.java:2305)
        at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.request(FluxConcatMapNoPrefetch.java:338)
        at reactor.core.publisher.MonoNext$NextSubscriber.request(MonoNext.java:108)
        at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.set(Operators.java:2341)
        at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onSubscribe(Operators.java:2215)
        at reactor.core.publisher.MonoNext$NextSubscriber.onSubscribe(MonoNext.java:70)
        at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.onSubscribe(FluxConcatMapNoPrefetch.java:164)
        at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:201)
        at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:83)
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64)
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:53)
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64)
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:53)
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64)
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:53)
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64)
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:53)
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64)
        at reactor.core.publisher.MonoDeferContextual.subscribe(MonoDeferContextual.java:55)
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:53)
        at reactor.core.publisher.Mono.subscribe(Mono.java:4495)
        at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:82)
        at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onComplete(MonoPeekTerminal.java:299)
        at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onComplete(MonoPeekTerminal.java:299)
        at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:155)
        at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:74)
        at reactor.core.publisher.FluxFilter$FilterSubscriber.onNext(FluxFilter.java:113)
        at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onNext(MonoPeekTerminal.java:180)
        at reactor.core.publisher.FluxPeekFuseable$PeekFuseableConditionalSubscriber.onNext(FluxPeekFuseable.java:503)
        at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onNext(MonoPeekTerminal.java:180)
        at reactor.core.publisher.FluxDefaultIfEmpty$DefaultIfEmptySubscriber.onNext(FluxDefaultIfEmpty.java:122)
        at reactor.core.publisher.MonoNext$NextSubscriber.onNext(MonoNext.java:82)
        at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.innerNext(FluxConcatMapNoPrefetch.java:258)
        at reactor.core.publisher.FluxConcatMap$ConcatMapInner.onNext(FluxConcatMap.java:863)
        at reactor.core.publisher.MonoFlatMap$FlatMapMain.secondComplete(MonoFlatMap.java:245)
        at reactor.core.publisher.MonoFlatMap$FlatMapInner.onNext(MonoFlatMap.java:305)
        at reactor.core.publisher.FluxDefaultIfEmpty$DefaultIfEmptySubscriber.onNext(FluxDefaultIfEmpty.java:122)
        at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:129)
        at reactor.core.publisher.FluxFilterFuseable$FilterFuseableSubscriber.onNext(FluxFilterFuseable.java:118)
        at reactor.core.publisher.FluxMapFuseable$MapFuseableConditionalSubscriber.onNext(FluxMapFuseable.java:299)
        at reactor.core.publisher.FluxMapFuseable$MapFuseableConditionalSubscriber.onNext(FluxMapFuseable.java:299)
        at reactor.core.publisher.FluxFilterFuseable$FilterFuseableConditionalSubscriber.onNext(FluxFilterFuseable.java:337)
        at reactor.core.publisher.MonoFlatMap$FlatMapMain.secondComplete(MonoFlatMap.java:245)
        at reactor.core.publisher.MonoFlatMap$FlatMapInner.onNext(MonoFlatMap.java:305)
        at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:158)
        at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1839)
        at reactor.core.publisher.MonoCacheTime.subscribeOrReturn(MonoCacheTime.java:151)
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:57)
        at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:165)
        at reactor.core.publisher.FluxFilter$FilterSubscriber.onNext(FluxFilter.java:113)
        at reactor.core.publisher.FluxMap$MapConditionalSubscriber.onNext(FluxMap.java:224)
        at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2545)
        at reactor.core.publisher.FluxMap$MapConditionalSubscriber.request(FluxMap.java:295)
        at reactor.core.publisher.FluxFilter$FilterSubscriber.request(FluxFilter.java:186)
        at reactor.core.publisher.MonoFlatMap$FlatMapMain.request(MonoFlatMap.java:194)
        at reactor.core.publisher.FluxFilterFuseable$FilterFuseableConditionalSubscriber.request(FluxFilterFuseable.java:411)
        at reactor.core.publisher.FluxMapFuseable$MapFuseableConditionalSubscriber.request(FluxMapFuseable.java:360)
        at reactor.core.publisher.FluxMapFuseable$MapFuseableConditionalSubscriber.request(FluxMapFuseable.java:360)
        at reactor.core.publisher.FluxFilterFuseable$FilterFuseableSubscriber.request(FluxFilterFuseable.java:191)
        at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.request(FluxMapFuseable.java:171)
        at reactor.core.publisher.FluxDefaultIfEmpty$DefaultIfEmptySubscriber.request(FluxDefaultIfEmpty.java:98)
        at reactor.core.publisher.MonoFlatMap$FlatMapInner.onSubscribe(MonoFlatMap.java:291)
        at reactor.core.publisher.Operators$BaseFluxToMonoOperator.onSubscribe(Operators.java:2025)
        at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onSubscribe(FluxMapFuseable.java:96)
        at reactor.core.publisher.FluxFilterFuseable$FilterFuseableSubscriber.onSubscribe(FluxFilterFuseable.java:87)
        at reactor.core.publisher.FluxMapFuseable$MapFuseableConditionalSubscriber.onSubscribe(FluxMapFuseable.java:265)
        at reactor.core.publisher.FluxMapFuseable$MapFuseableConditionalSubscriber.onSubscribe(FluxMapFuseable.java:265)
        at reactor.core.publisher.FluxFilterFuseable$FilterFuseableConditionalSubscriber.onSubscribe(FluxFilterFuseable.java:305)
        at reactor.core.publisher.MonoFlatMap$FlatMapMain.onSubscribe(MonoFlatMap.java:117)
        at reactor.core.publisher.FluxFilter$FilterSubscriber.onSubscribe(FluxFilter.java:85)
        at reactor.core.publisher.FluxMap$MapConditionalSubscriber.onSubscribe(FluxMap.java:194)
        at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:55)
        at reactor.core.publisher.MonoDeferContextual.subscribe(MonoDeferContextual.java:55)
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64)
        at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:165)
        at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:129)
        at reactor.core.publisher.FluxFilterFuseable$FilterFuseableSubscriber.onNext(FluxFilterFuseable.java:118)
        at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2545)
        at reactor.core.publisher.FluxFilterFuseable$FilterFuseableSubscriber.request(FluxFilterFuseable.java:191)
        at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.request(FluxMapFuseable.java:171)
        at reactor.core.publisher.MonoFlatMap$FlatMapMain.request(MonoFlatMap.java:194)
        at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.set(Operators.java:2341)
        at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onSubscribe(Operators.java:2215)
        at reactor.core.publisher.MonoFlatMap$FlatMapMain.onSubscribe(MonoFlatMap.java:117)
        at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onSubscribe(FluxMapFuseable.java:96)
        at reactor.core.publisher.FluxFilterFuseable$FilterFuseableSubscriber.onSubscribe(FluxFilterFuseable.java:87)
        at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:55)
        at reactor.core.publisher.Mono.subscribe(Mono.java:4495)
        at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.onNext(FluxConcatMapNoPrefetch.java:206)
        at reactor.core.publisher.FluxIterable$IterableSubscription.slowPath(FluxIterable.java:335)
        at reactor.core.publisher.FluxIterable$IterableSubscription.request(FluxIterable.java:294)
        at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.innerComplete(FluxConcatMapNoPrefetch.java:274)
        at reactor.core.publisher.FluxConcatMap$ConcatMapInner.onComplete(FluxConcatMap.java:887)
        at reactor.core.publisher.MonoFlatMap$FlatMapMain.onComplete(MonoFlatMap.java:189)
        at reactor.core.publisher.FluxMap$MapSubscriber.onComplete(FluxMap.java:144)
        at reactor.core.publisher.FluxFilter$FilterSubscriber.onComplete(FluxFilter.java:166)
        at reactor.core.publisher.FluxPeekFuseable$PeekConditionalSubscriber.onComplete(FluxPeekFuseable.java:940)
        at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:85)
        at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2547)
        at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.set(Operators.java:2341)
        at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onSubscribe(Operators.java:2215)
        at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:55)
        at reactor.core.publisher.Mono.subscribe(Mono.java:4495)
        at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:82)
        at reactor.core.publisher.MonoNext$NextSubscriber.onComplete(MonoNext.java:102)
        at reactor.core.publisher.FluxFilter$FilterSubscriber.onComplete(FluxFilter.java:166)
        at reactor.core.publisher.FluxFlatMap$FlatMapMain.checkTerminated(FluxFlatMap.java:847)
        at reactor.core.publisher.FluxFlatMap$FlatMapMain.drainLoop(FluxFlatMap.java:609)
        at reactor.core.publisher.FluxFlatMap$FlatMapMain.drain(FluxFlatMap.java:589)
        at reactor.core.publisher.FluxFlatMap$FlatMapMain.request(FluxFlatMap.java:347)
        at reactor.core.publisher.FluxFilter$FilterSubscriber.request(FluxFilter.java:186)
        at reactor.core.publisher.MonoNext$NextSubscriber.request(MonoNext.java:108)
        at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.request(Operators.java:2305)
        at reactor.core.publisher.FluxPeekFuseable$PeekConditionalSubscriber.request(FluxPeekFuseable.java:783)
        at reactor.core.publisher.FluxFilter$FilterSubscriber.request(FluxFilter.java:186)
        at reactor.core.publisher.FluxMap$MapSubscriber.request(FluxMap.java:164)
        at reactor.core.publisher.MonoFlatMap$FlatMapMain.request(MonoFlatMap.java:194)
        at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.request(Operators.java:2305)
        at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.request(FluxConcatMapNoPrefetch.java:338)
        at reactor.core.publisher.MonoNext$NextSubscriber.request(MonoNext.java:108)
        at reactor.core.publisher.FluxDefaultIfEmpty$DefaultIfEmptySubscriber.request(FluxDefaultIfEmpty.java:98)
        at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.request(MonoPeekTerminal.java:139)
        at reactor.core.publisher.FluxPeekFuseable$PeekFuseableConditionalSubscriber.request(FluxPeekFuseable.java:437)
        at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.request(MonoPeekTerminal.java:139)
        at reactor.core.publisher.FluxFilter$FilterSubscriber.request(FluxFilter.java:186)
        at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.set(Operators.java:2341)
        at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onSubscribe(Operators.java:2215)
        at reactor.core.publisher.FluxFilter$FilterSubscriber.onSubscribe(FluxFilter.java:85)
        at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onSubscribe(MonoPeekTerminal.java:152)
        at reactor.core.publisher.FluxPeekFuseable$PeekFuseableConditionalSubscriber.onSubscribe(FluxPeekFuseable.java:471)
        at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onSubscribe(MonoPeekTerminal.java:152)
        at reactor.core.publisher.Operators$BaseFluxToMonoOperator.onSubscribe(Operators.java:2025)
        at reactor.core.publisher.MonoNext$NextSubscriber.onSubscribe(MonoNext.java:70)
        at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.onSubscribe(FluxConcatMapNoPrefetch.java:164)
        at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:201)
        at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:83)
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64)
        at reactor.core.publisher.MonoDeferContextual.subscribe(MonoDeferContextual.java:55)
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64)
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:53)
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64)
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:53)
        at reactor.core.publisher.Mono.subscribe(Mono.java:4495)
        at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.subscribeNext(MonoIgnoreThen.java:263)
        at reactor.core.publisher.MonoIgnoreThen.subscribe(MonoIgnoreThen.java:51)
        at reactor.core.publisher.Mono.subscribe(Mono.java:4495)
        at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:82)
        at reactor.core.publisher.FluxFilter$FilterSubscriber.onComplete(FluxFilter.java:166)
        at reactor.core.publisher.FluxPeekFuseable$PeekConditionalSubscriber.onComplete(FluxPeekFuseable.java:940)
        at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:85)
        at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2547)
        at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.set(Operators.java:2341)
        at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onSubscribe(Operators.java:2215)
        at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:55)
        at reactor.core.publisher.Mono.subscribe(Mono.java:4495)
        at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:82)
        at reactor.core.publisher.MonoNext$NextSubscriber.onComplete(MonoNext.java:102)
        at reactor.core.publisher.FluxFilter$FilterSubscriber.onComplete(FluxFilter.java:166)
        at reactor.core.publisher.FluxFlatMap$FlatMapMain.checkTerminated(FluxFlatMap.java:847)
        at reactor.core.publisher.FluxFlatMap$FlatMapMain.drainLoop(FluxFlatMap.java:609)
        at reactor.core.publisher.FluxFlatMap$FlatMapMain.drain(FluxFlatMap.java:589)
        at reactor.core.publisher.FluxFlatMap$FlatMapMain.onComplete(FluxFlatMap.java:466)
        at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.onComplete(FluxPeekFuseable.java:277)
        at reactor.core.publisher.FluxIterable$IterableSubscription.slowPath(FluxIterable.java:357)
        at reactor.core.publisher.FluxIterable$IterableSubscription.request(FluxIterable.java:294)
        at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.request(FluxPeekFuseable.java:144)
        at reactor.core.publisher.FluxFlatMap$FlatMapMain.onSubscribe(FluxFlatMap.java:371)
        at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.onSubscribe(FluxPeekFuseable.java:178)
        at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:201)
        at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:83)
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64)
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:53)
        at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:165)
        at reactor.core.publisher.Operators$BaseFluxToMonoOperator.completePossiblyEmpty(Operators.java:2071)
        at reactor.core.publisher.FluxDefaultIfEmpty$DefaultIfEmptySubscriber.onComplete(FluxDefaultIfEmpty.java:134)
        at reactor.core.publisher.FluxMap$MapSubscriber.onComplete(FluxMap.java:144)
        at reactor.core.publisher.FluxMap$MapSubscriber.onComplete(FluxMap.java:144)
        at reactor.core.publisher.FluxFilter$FilterSubscriber.onComplete(FluxFilter.java:166)
        at reactor.core.publisher.FluxMap$MapConditionalSubscriber.onComplete(FluxMap.java:275)
        at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1840)
        at reactor.core.publisher.MonoCacheTime$CoordinatorSubscriber.signalCached(MonoCacheTime.java:337)
        at reactor.core.publisher.MonoCacheTime$CoordinatorSubscriber.onNext(MonoCacheTime.java:354)
        at reactor.core.publisher.FluxPeek$PeekSubscriber.onNext(FluxPeek.java:200)
        at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:74)
        at reactor.core.publisher.MonoNext$NextSubscriber.onNext(MonoNext.java:82)
        at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.innerNext(FluxConcatMapNoPrefetch.java:258)
        at reactor.core.publisher.FluxConcatMap$ConcatMapInner.onNext(FluxConcatMap.java:863)
        at reactor.core.publisher.FluxConcatMap$WeakScalarSubscription.request(FluxConcatMap.java:479)
        at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.request(Operators.java:2305)
        at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.request(FluxConcatMapNoPrefetch.java:338)
        at reactor.core.publisher.MonoNext$NextSubscriber.request(MonoNext.java:108)
        at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.set(Operators.java:2341)
        at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onSubscribe(Operators.java:2215)
        at reactor.core.publisher.MonoNext$NextSubscriber.onSubscribe(MonoNext.java:70)
        at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.onSubscribe(FluxConcatMapNoPrefetch.java:164)
        at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:201)
        at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:83)
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64)
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:53)
        at reactor.core.publisher.MonoCacheTime.subscribeOrReturn(MonoCacheTime.java:143)
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:57)
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:53)
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64)
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:53)
        at reactor.core.publisher.Mono.subscribe(Mono.java:4495)
        at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.subscribeNext(MonoIgnoreThen.java:263)
        at reactor.core.publisher.MonoIgnoreThen.subscribe(MonoIgnoreThen.java:51)
        at reactor.core.publisher.Mono.subscribe(Mono.java:4495)
        at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:82)
        at reactor.core.publisher.FluxFilter$FilterSubscriber.onComplete(FluxFilter.java:166)
        at reactor.core.publisher.FluxPeekFuseable$PeekConditionalSubscriber.onComplete(FluxPeekFuseable.java:940)
        at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:85)
        at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2547)
        at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.set(Operators.java:2341)
        at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onSubscribe(Operators.java:2215)
        at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:55)
        at reactor.core.publisher.Mono.subscribe(Mono.java:4495)
        at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:82)
        at reactor.core.publisher.MonoNext$NextSubscriber.onComplete(MonoNext.java:102)
        at reactor.core.publisher.FluxFilter$FilterSubscriber.onComplete(FluxFilter.java:166)
        at reactor.core.publisher.FluxFlatMap$FlatMapMain.checkTerminated(FluxFlatMap.java:847)
        at reactor.core.publisher.FluxFlatMap$FlatMapMain.drainLoop(FluxFlatMap.java:609)
        at reactor.core.publisher.FluxFlatMap$FlatMapMain.drain(FluxFlatMap.java:589)
        at reactor.core.publisher.FluxFlatMap$FlatMapMain.onComplete(FluxFlatMap.java:466)
        at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.onComplete(FluxPeekFuseable.java:277)
        at reactor.core.publisher.FluxIterable$IterableSubscription.slowPath(FluxIterable.java:357)
        at reactor.core.publisher.FluxIterable$IterableSubscription.request(FluxIterable.java:294)
        at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.request(FluxPeekFuseable.java:144)
        at reactor.core.publisher.FluxFlatMap$FlatMapMain.onSubscribe(FluxFlatMap.java:371)
        at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.onSubscribe(FluxPeekFuseable.java:178)
        at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:201)
        at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:83)
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64)
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:53)
        at reactor.core.publisher.Mono.subscribe(Mono.java:4495)
        at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.subscribeNext(MonoIgnoreThen.java:263)
        at reactor.core.publisher.MonoIgnoreThen.subscribe(MonoIgnoreThen.java:51)
        at reactor.core.publisher.Mono.subscribe(Mono.java:4495)
        at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:82)
        at reactor.core.publisher.FluxFilter$FilterSubscriber.onComplete(FluxFilter.java:166)
        at reactor.core.publisher.FluxPeekFuseable$PeekConditionalSubscriber.onComplete(FluxPeekFuseable.java:940)
        at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:85)
        at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2547)
        at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.set(Operators.java:2341)
        at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onSubscribe(Operators.java:2215)
        at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:55)
        at reactor.core.publisher.Mono.subscribe(Mono.java:4495)
        at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:82)
        at reactor.core.publisher.MonoNext$NextSubscriber.onComplete(MonoNext.java:102)
        at reactor.core.publisher.FluxFilter$FilterSubscriber.onComplete(FluxFilter.java:166)
        at reactor.core.publisher.FluxFlatMap$FlatMapMain.checkTerminated(FluxFlatMap.java:847)
        at reactor.core.publisher.FluxFlatMap$FlatMapMain.drainLoop(FluxFlatMap.java:609)
        at reactor.core.publisher.FluxFlatMap$FlatMapMain.drain(FluxFlatMap.java:589)
        at reactor.core.publisher.FluxFlatMap$FlatMapMain.onComplete(FluxFlatMap.java:466)
        at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.onComplete(FluxPeekFuseable.java:277)
        at reactor.core.publisher.FluxIterable$IterableSubscription.slowPath(FluxIterable.java:357)
        at reactor.core.publisher.FluxIterable$IterableSubscription.request(FluxIterable.java:294)
        at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.request(FluxPeekFuseable.java:144)
        at reactor.core.publisher.FluxFlatMap$FlatMapMain.onSubscribe(FluxFlatMap.java:371)
        at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.onSubscribe(FluxPeekFuseable.java:178)
        at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:201)
        at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:83)
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64)
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:53)
        at reactor.core.publisher.Mono.subscribe(Mono.java:4495)
        at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.subscribeNext(MonoIgnoreThen.java:263)
        at reactor.core.publisher.MonoIgnoreThen.subscribe(MonoIgnoreThen.java:51)
        at reactor.core.publisher.Mono.subscribe(Mono.java:4495)
        at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:82)
        at reactor.core.publisher.MonoFlatMap$FlatMapMain.onComplete(MonoFlatMap.java:189)
        at reactor.core.publisher.FluxFilterFuseable$FilterFuseableSubscriber.onComplete(FluxFilterFuseable.java:171)
        at reactor.core.publisher.FluxPeekFuseable$PeekFuseableConditionalSubscriber.onComplete(FluxPeekFuseable.java:595)
        at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2547)
        at reactor.core.publisher.FluxPeekFuseable$PeekFuseableConditionalSubscriber.request(FluxPeekFuseable.java:437)
        at reactor.core.publisher.FluxFilterFuseable$FilterFuseableSubscriber.request(FluxFilterFuseable.java:191)
        at reactor.core.publisher.MonoFlatMap$FlatMapMain.request(MonoFlatMap.java:194)
        at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.set(Operators.java:2341)
        at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onSubscribe(Operators.java:2215)
        at reactor.core.publisher.MonoFlatMap$FlatMapMain.onSubscribe(MonoFlatMap.java:117)
        at reactor.core.publisher.FluxFilterFuseable$FilterFuseableSubscriber.onSubscribe(FluxFilterFuseable.java:87)
        at reactor.core.publisher.FluxPeekFuseable$PeekFuseableConditionalSubscriber.onSubscribe(FluxPeekFuseable.java:471)
        at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:55)
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64)
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:53)
        at reactor.core.publisher.Mono.subscribe(Mono.java:4495)
        at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.subscribeNext(MonoIgnoreThen.java:263)
        at reactor.core.publisher.MonoIgnoreThen.subscribe(MonoIgnoreThen.java:51)
        at reactor.core.publisher.Mono.subscribe(Mono.java:4495)
        at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:82)
        at reactor.core.publisher.MonoFlatMap$FlatMapMain.onComplete(MonoFlatMap.java:189)
        at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onComplete(FluxMapFuseable.java:152)
        at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onComplete(FluxMapFuseable.java:152)
        at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onComplete(FluxMapFuseable.java:152)
        at reactor.core.publisher.FluxFilterFuseable$FilterFuseableSubscriber.onComplete(FluxFilterFuseable.java:171)
        at reactor.core.publisher.FluxPeekFuseable$PeekFuseableConditionalSubscriber.onComplete(FluxPeekFuseable.java:595)
        at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2547)
        at reactor.core.publisher.FluxPeekFuseable$PeekFuseableConditionalSubscriber.request(FluxPeekFuseable.java:437)
        at reactor.core.publisher.FluxFilterFuseable$FilterFuseableSubscriber.request(FluxFilterFuseable.java:191)
        at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.request(FluxMapFuseable.java:171)
        at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.request(FluxMapFuseable.java:171)
        at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.request(FluxMapFuseable.java:171)
        at reactor.core.publisher.MonoFlatMap$FlatMapMain.request(MonoFlatMap.java:194)
        at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.set(Operators.java:2341)
        at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onSubscribe(Operators.java:2215)
        at reactor.core.publisher.MonoFlatMap$FlatMapMain.onSubscribe(MonoFlatMap.java:117)
        at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onSubscribe(FluxMapFuseable.java:96)
        at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onSubscribe(FluxMapFuseable.java:96)
        at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onSubscribe(FluxMapFuseable.java:96)
        at reactor.core.publisher.FluxFilterFuseable$FilterFuseableSubscriber.onSubscribe(FluxFilterFuseable.java:87)
        at reactor.core.publisher.FluxPeekFuseable$PeekFuseableConditionalSubscriber.onSubscribe(FluxPeekFuseable.java:471)
        at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:55)
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64)
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:53)
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64)
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:53)
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64)
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:53)
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64)
        at reactor.core.publisher.MonoDeferContextual.subscribe(MonoDeferContextual.java:55)
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64)
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:53)
        at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:165)
        at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:129)
        at reactor.core.publisher.MonoFlatMap$FlatMapMain.secondComplete(MonoFlatMap.java:245)
        at reactor.core.publisher.MonoFlatMap$FlatMapInner.onNext(MonoFlatMap.java:305)
        at reactor.core.publisher.Operators$BaseFluxToMonoOperator.completePossiblyEmpty(Operators.java:2071)
        at reactor.core.publisher.MonoCollectList$MonoCollectListSubscriber.onComplete(MonoCollectList.java:118)
        at reactor.core.publisher.FluxIterable$IterableSubscription.fastPath(FluxIterable.java:424)
        at reactor.core.publisher.FluxIterable$IterableSubscription.request(FluxIterable.java:291)
        at reactor.core.publisher.Operators$BaseFluxToMonoOperator.request(Operators.java:2041)
        at reactor.core.publisher.MonoFlatMap$FlatMapInner.onSubscribe(MonoFlatMap.java:291)
        at reactor.core.publisher.Operators$BaseFluxToMonoOperator.onSubscribe(Operators.java:2025)
        at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:201)
        at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:83)
        at reactor.core.publisher.MonoFromFluxOperator.subscribe(MonoFromFluxOperator.java:81)
        at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:165)
        at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:74)
        at reactor.core.publisher.MonoNext$NextSubscriber.onNext(MonoNext.java:82)
        at reactor.core.publisher.FluxFilterWhen$FluxFilterWhenSubscriber.drain(FluxFilterWhen.java:301)
        at reactor.core.publisher.FluxFilterWhen$FluxFilterWhenSubscriber.onNext(FluxFilterWhen.java:140)
        at reactor.core.publisher.FluxIterable$IterableSubscription.slowPath(FluxIterable.java:335)
        at reactor.core.publisher.FluxIterable$IterableSubscription.request(FluxIterable.java:294)
        at reactor.core.publisher.FluxFilterWhen$FluxFilterWhenSubscriber.onSubscribe(FluxFilterWhen.java:200)
        at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:201)
        at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:83)
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64)
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:53)
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64)
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:53)
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64)
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:53)
        at reactor.core.publisher.Mono.subscribe(Mono.java:4495)
        at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.subscribeNext(MonoIgnoreThen.java:263)
        at reactor.core.publisher.MonoIgnoreThen.subscribe(MonoIgnoreThen.java:51)
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64)
        at reactor.core.publisher.MonoDeferContextual.subscribe(MonoDeferContextual.java:55)
        at reactor.netty.http.server.HttpServer$HttpServerHandle.onStateChange(HttpServer.java:1052)
        at reactor.netty.ReactorNetty$CompositeConnectionObserver.onStateChange(ReactorNetty.java:710)
        at reactor.netty.transport.ServerTransport$ChildObserver.onStateChange(ServerTransport.java:481)
        at reactor.netty.http.server.HttpServerOperations.onInboundNext(HttpServerOperations.java:647)
        at reactor.netty.channel.ChannelOperationsHandler.channelRead(ChannelOperationsHandler.java:114)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412)
        at reactor.netty.http.server.HttpTrafficHandler.channelRead(HttpTrafficHandler.java:238)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:442)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412)
        at io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelRead(CombinedChannelDuplexHandler.java:436)
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:346)
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:318)
        at io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:251)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:442)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412)
        at io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:1466)
        at io.netty.handler.ssl.SslHandler.decodeJdkCompatible(SslHandler.java:1329)
        at io.netty.handler.ssl.SslHandler.decode(SslHandler.java:1378)
        at io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:529)
        at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:468)
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:290)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412)
        at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:440)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
        at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919)
        at io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:800)
        at io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:509)
        at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:407)
        at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997)
        at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
        at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
        at java.base/java.lang.Thread.run(Thread.java:833)

Additional context

No response

[github-actions]

Hello there juliusdev! 👋

Thank you and congratulations 🎉 for opening your very first issue in this project! 💖

In case you want to claim this issue, please comment down below! We will try to get back to you as soon as we can. 👀

[germanosin]

Hi, @juliusdev
@Haarolean and I are not maintaining this repository, and it hasn't received any updates or fixes for a while. We kindly suggest checking https://github.com/kafbat/kafka-ui instead.