When a client under the master is deleted, keycloak does not work.

Describe the bug

1. Create a demo realm.
2. Delete the demo-realm client under the master realm.
3. The /auth/admin/master/console/ login page access is blank, keycloak does not work! Error:

ERROR [org.keycloak.services.error.KeycloakErrorHandler] (default task-3) Uncaught server error: java.lang.NullPointerException
        at org.keycloak.keycloak-services@15.0.2//org.keycloak.services.resources.admin.AdminConsole.getRealmAdminAccess(AdminConsole.java:281)
        at org.keycloak.keycloak-services@15.0.2//org.keycloak.services.resources.admin.AdminConsole.lambda$addMasterRealmAccess$0(AdminConsole.java:260)
        at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183)
        at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195)
        at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195)
        at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177)
        at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195)
        at java.base/java.util.Iterator.forEachRemaining(Iterator.java:133)
        at java.base/java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
        at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
        at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
        at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)
        at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)
        at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
        at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497)
        at org.keycloak.keycloak-server-spi-private@15.0.2//org.keycloak.utils.ClosingStream.forEach(ClosingStream.java:128)
        at org.keycloak.keycloak-services@15.0.2//org.keycloak.services.resources.admin.AdminConsole.addMasterRealmAccess(AdminConsole.java:258)
        at org.keycloak.keycloak-services@15.0.2//org.keycloak.services.resources.admin.AdminConsole.whoAmI(AdminConsole.java:237)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:566)
        at [e-mail]//org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:138)
        at [e-mail]//org.jboss.resteasy.core.ResourceMethodInvoker.internalInvokeOnTarget(ResourceMethodInvoker.java:546)
        at [e-mail]//org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTargetAfterFilter(ResourceMethodInvoker.java:435)
        at [e-mail]//org.jboss.resteasy.core.ResourceMethodInvoker.lambda$invokeOnTarget$0(ResourceMethodInvoker.java:396)
        at [e-mail]//org.jboss.resteasy.core.interception.PreMatchContainerRequestContext.filter(PreMatchContainerRequestContext.java:358)
        at [e-mail]//org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTarget(ResourceMethodInvoker.java:398)
        at [e-mail]//org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:365)
        at [e-mail]//org.jboss.resteasy.core.ResourceLocatorInvoker.invokeOnTargetObject(ResourceLocatorInvoker.java:150)
        at [e-mail]//org.jboss.resteasy.core.ResourceLocatorInvoker.invoke(ResourceLocatorInvoker.java:104)
        at [e-mail]//org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:440)
        at [e-mail]//org.jboss.resteasy.core.SynchronousDispatcher.lambda$invoke$4(SynchronousDispatcher.java:229)
        at [e-mail]//org.jboss.resteasy.core.SynchronousDispatcher.lambda$preprocess$0(SynchronousDispatcher.java:135)
        at [e-mail]//org.jboss.resteasy.core.interception.PreMatchContainerRequestContext.filter(PreMatchContainerRequestContext.java:358)
        at [e-mail]//org.jboss.resteasy.core.SynchronousDispatcher.preprocess(SynchronousDispatcher.java:138)
        at [e-mail]//org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:215)
        at [e-mail]//org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:245)
        at [e-mail]//org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:61)
        at [e-mail]//org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:56)
        at [e-mail]//javax.servlet.http.HttpServlet.service(HttpServlet.java:590)
        at [e-mail]//io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:74)
        at [e-mail]//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129)
        at org.keycloak.keycloak-wildfly-extensions@15.0.2//org.keycloak.provider.wildfly.WildFlyRequestFilter.lambda$doFilter$0(WildFlyRequestFilter.java:41)
        at org.keycloak.keycloak-services@15.0.2//org.keycloak.services.filters.AbstractRequestFilter.filter(AbstractRequestFilter.java:43)
        at org.keycloak.keycloak-wildfly-extensions@15.0.2//org.keycloak.provider.wildfly.WildFlyRequestFilter.doFilter(WildFlyRequestFilter.java:39)
        at [e-mail]//io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
        at [e-mail]//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
        at [e-mail]//io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)
        at [e-mail]//io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
        at [e-mail]//io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:68)
        at [e-mail]//io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
        at [e-mail]//org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
        at [e-mail]//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
        at [e-mail]//io.undertow.servlet.handlers.RedirectDirHandler.handleRequest(RedirectDirHandler.java:68)
        at [e-mail]//io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:117)
        at [e-mail]//io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
        at [e-mail]//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
        at [e-mail]//io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
        at [e-mail]//io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
        at [e-mail]//io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
        at [e-mail]//io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
        at [e-mail]//io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)
        at [e-mail]//io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
        at [e-mail]//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
        at [e-mail]//org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
        at [e-mail]//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
        at [e-mail]//org.wildfly.extension.undertow.deployment.GlobalRequestControllerHandler.handleRequest(GlobalRequestControllerHandler.java:68)
        at [e-mail]//io.undertow.servlet.handlers.SendErrorPageHandler.handleRequest(SendErrorPageHandler.java:52)
        at [e-mail]//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
        at [e-mail]//io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:269)
        at [e-mail]//io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:78)
        at [e-mail]//io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:133)
        at [e-mail]//io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:130)
        at [e-mail]//io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48)
        at [e-mail]//io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
        at [e-mail]//org.wildfly.extension.undertow.security.SecurityContextThreadSetupAction.lambda$create$0(SecurityContextThreadSetupAction.java:105)
        at [e-mail]//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1530)
        at [e-mail]//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1530)
        at [e-mail]//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1530)
        at [e-mail]//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1530)
        at [e-mail]//io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:249)
        at [e-mail]//io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:78)
        at [e-mail]//io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:99)
        at [e-mail]//io.undertow.server.Connectors.executeRootHandler(Connectors.java:387)
        at [e-mail]//io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:841)
        at [e-mail]//org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
        at [e-mail]//org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1990)
        at [e-mail]//org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1486)
        at [e-mail]//org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1377)
        at [e-mail]//org.xnio.XnioWorker$WorkerThreadFactory$1$1.run(XnioWorker.java:1280)
        at java.base/java.lang.Thread.run(Thread.java:829)

Version

15.0.2

Expected behavior

Keycloak works fine or master realm works fine even if demo client doesn’t work

Actual behavior

keycloak does not work.

How to Reproduce?

1. Create a demo realm.
2. Delete the demo-realm client under the master realm.
3. The /auth/admin/master/console/ login page access is blank, keycloak does not work!

Anything else?

Docker image: quay.io/keycloak/keycloak:15.0.2

Database: Mysql

Users in the demo realm seem to be able to log in normally and are not affected. This specific test is useless.

[rindibudiaramdhan]

I am having the same issue using the jboss/keycloak:16.1.1 image

I solved the issue by manually deleting the realm that was removed from the database, starting from the “realm” table. I am not sure if this is safe, but it resolved the problem for me.

yes. this is resolve my issue. Thanks! works for version 12.x

[PhilippeKayser]

I am having the same issue using the jboss/keycloak:16.1.1 image

I solved the issue by manually deleting the realm that was removed from the database, starting from the “realm” table. I am not sure if this is safe, but it resolved the problem for me.