Keycloak 26.1.4 ERROR #39025

TelisDilintas · 2025-04-16T13:19:08Z

TelisDilintas
Apr 16, 2025

starting keycloak server I got message: ERROR [org.keycloak.services.error.KeycloakErrorHandler] (executor-thread-1) Uncaught server error: java.lang.NullPointerException: Cannot invoke "Object.toString()" because the return value of "io.vertx.core.http.HttpServerRequest.authority()" is null
Any ideas? Thank you in advance

lam-lt · 2025-04-16T17:17:48Z

lam-lt
Apr 16, 2025

Please provide more detailed context so people can reproduce the error.

The command you use to start Keycloak
The docker-compose if you use it
...

0 replies

TelisDilintas · 2025-04-17T05:16:51Z

TelisDilintas
Apr 17, 2025
Author

Thanks for response
I start keycloak with ".\kc.bat start". Either in https or in dev mode the error is the same.
I don't use docker.
I'm using windows 2022 server

1 reply

shawkins Apr 17, 2025
Collaborator

The details here are still insufficient. Is there any other configuration in your kecloak.conf or environment. If ther server fails to start, include --verbose and report the stacktrace. If the server is starting, provide the reproduction steps and the stacktrace.

TelisDilintas · 2025-04-17T14:14:59Z

TelisDilintas
Apr 17, 2025
Author

The server is runinig.
the keycliak,conf is:
db-url=jdbc:sqlserver://10.250.25.103:1433;databaseName=KeycloackDB;encrypt=true;trustServerCertificate=true

If the server should expose healthcheck endpoints.

health-enabled=true

If the server should expose metrics endpoints.

#metrics-enabled=true

HTTP

https-port=8443
http-port=8083
#Error log
log=console,file,syslog

The file path to a server certificate or certificate chain in PEM format.

https-certificate-file=C:/keycloak-26.1.4/conf/keycloak.pem
https-certificate-key-file=C:/keycloak-26.1.4/conf/keycloakkey.pem
https-key-store-file=C:/keycloak-26.1.4/conf/keycloak.jks
https-key-store-password=snz....
https-key-store-type=JKS

hostname-strict=false
-- --- --- the log file ----:
2025-04-17 17:10:58,208 INFO [io.quarkus] (main) Keycloak 26.1.4 on JVM (powered by Quarkus 3.15.3.1) started in 7.187s. Listening on: https://0.0.0.0:8443. Management interface listening on https://0.0.0.0:9000.
2025-04-17 17:10:58,209 INFO [io.quarkus] (main) Profile prod activated.
2025-04-17 17:10:58,210 INFO [io.quarkus] (main) Installed features: [agroal, cdi, hibernate-orm, jdbc-mssql, keycloak, narayana-jta, opentelemetry, reactive-routes, rest, rest-jackson, smallrye-context-propagation, smallrye-health, vertx]
2025-04-17 17:11:01,660 ERROR [org.keycloak.services.error.KeycloakErrorHandler] (executor-thread-1) Uncaught server error: java.lang.NullPointerException: Cannot invoke "Object.toString()" because the return value of "io.vertx.core.http.HttpServerRequest.authority()" is null
at org.jboss.resteasy.reactive.server.vertx.VertxResteasyReactiveRequestContext.getRequestHost(VertxResteasyReactiveRequestContext.java:200)
at org.jboss.resteasy.reactive.server.core.ResteasyReactiveRequestContext.getAuthority(ResteasyReactiveRequestContext.java:469)
at org.jboss.resteasy.reactive.server.jaxrs.UriInfoImpl.getBaseUri(UriInfoImpl.java:131)
at org.jboss.resteasy.reactive.server.jaxrs.UriInfoImpl.getBaseUriBuilder(UriInfoImpl.java:141)
at org.keycloak.url.HostnameV2Provider.getFrontUriBuilder(HostnameV2Provider.java:99)
at org.keycloak.url.HostnameV2Provider.getUri(HostnameV2Provider.java:73)
at org.keycloak.url.HostnameV2Provider.getScheme(HostnameV2Provider.java:134)
at org.keycloak.models.KeycloakUriInfo.(KeycloakUriInfo.java:51)
at org.keycloak.services.DefaultKeycloakContext.getUri(DefaultKeycloakContext.java:90)
at org.keycloak.services.DefaultKeycloakContext.getUri(DefaultKeycloakContext.java:97)
at org.keycloak.services.resources.PublicRealmResource.getRealm(PublicRealmResource.java:84)
at org.keycloak.services.resources.PublicRealmResource$quarkusrestinvoker$getRealm_ac7b7bc3a627b8c2421caa2513ad87273b16eee2.invoke(Unknown Source)
at org.jboss.resteasy.reactive.server.handlers.InvocationHandler.handle(InvocationHandler.java:29)
at io.quarkus.resteasy.reactive.server.runtime.QuarkusResteasyReactiveRequestContext.invokeHandler(QuarkusResteasyReactiveRequestContext.java:141)
at org.jboss.resteasy.reactive.common.core.AbstractResteasyReactiveContext.run(AbstractResteasyReactiveContext.java:147)
at io.quarkus.vertx.core.runtime.VertxCoreRecorder$14.runWith(VertxCoreRecorder.java:635)
at org.jboss.threads.EnhancedQueueExecutor$Task.doRunWith(EnhancedQueueExecutor.java:2516)
at org.jboss.threads.EnhancedQueueExecutor$Task.run(EnhancedQueueExecutor.java:2495)
at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1521)
at org.jboss.threads.DelegatingRunnable.run(DelegatingRunnable.java:11)
at org.jboss.threads.ThreadLocalResettingRunnable.run(ThreadLocalResettingRunnable.java:11)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Unknown Source)

the last error message appears continuously

3 replies

shawkins Apr 17, 2025
Collaborator

If you send HTTP 1 requests to the Keycloak server without a Host Header, it looks like you would hit this NPE. Is something sending invalid requests?

TelisDilintas Apr 18, 2025
Author

I don't know. I tried >.\kc.bat start --hostname=10.250.22.202 but get the same error. I have installed the same version in another Windows11 server and runs perfect, with the same certificates

shawkins Apr 18, 2025
Collaborator

I tried >.\kc.bat start --hostname=10.250.22.202 but get the same error.

I don't suspect this behavior is due to a Keycloak setting, or lack thereof. Something is sending what amounts to invalid requests - which normally proxy servers won't even allow.

However I tried a simple reproducer - a request without a Host header, and it resulted in a 400 response, not an NPE. If these where HTTP/2 requests you would expect to see a protocol error.

So I'm a little stumped about what exactly is causing this. If you can find a reproducer - such as enabling trace logging on the Keycloak server so that we can see the full details of the request that is causing this, then please open a Keycloak issue.

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Keycloak 26.1.4 ERROR #39025

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Keycloak 26.1.4 ERROR #39025

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TelisDilintas Apr 16, 2025

Replies: 3 comments · 4 replies

Uh oh!

lam-lt Apr 16, 2025

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TelisDilintas Apr 17, 2025 Author

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shawkins Apr 17, 2025 Collaborator

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TelisDilintas Apr 17, 2025 Author

If the server should expose healthcheck endpoints.

If the server should expose metrics endpoints.

HTTP

The file path to a server certificate or certificate chain in PEM format.

Uh oh!

shawkins Apr 17, 2025 Collaborator

Uh oh!

TelisDilintas Apr 18, 2025 Author

Uh oh!

Uh oh!

shawkins Apr 18, 2025 Collaborator

TelisDilintas
Apr 16, 2025

Replies: 3 comments 4 replies

lam-lt
Apr 16, 2025

TelisDilintas
Apr 17, 2025
Author

shawkins Apr 17, 2025
Collaborator

TelisDilintas
Apr 17, 2025
Author

shawkins Apr 17, 2025
Collaborator

TelisDilintas Apr 18, 2025
Author

shawkins Apr 18, 2025
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