Hi team,

I am implementing own user federation.

As part of this implementing my class is UserFederationProvider.

1. In method public UserModel getUserByUsername(RealmModel realm, String username) {

//Own code which authenticates the user in DB

Returning user model

UserModel userModel = session.userStorage().addUser(realm, username);

userModel.setEnabled(true);

userModel.setFederationLink(model.getId());

return userModel

}

2. Below exception is generated after UserModel in returned.

Please let me know if i missed anything.

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11:22:01,438 WARN [org.hibernate.engine.jdbc.spi.SqlExceptionHelper] (default task-10) SQL Error: 50200, SQLState: HYT00

11:22:01,439 ERROR [org.hibernate.engine.jdbc.spi.SqlExceptionHelper] (default task-10) Timeout trying to lock table "USER_ENTITY"; SQL statement:

select userentity0_.ID as ID1_47_, userentity0_.CREATED_TIMESTAMP as CREATED_2_47_, userentity0_.EMAIL as EMAIL3_47_, userentity0_.EMAIL_CONSTRAINT as EMAIL_CO4_47_, userentity0_.EMAIL_VERIFIED as EMAIL_VE5_47_, userentity0_.ENABLED as ENABLED6_47_, userentity0_.federation_link as federati7_47_, userentity0_.FIRST_NAME as FIRST_NA8_47_, userentity0_.LAST_NAME as LAST_NAM9_47_, userentity0_.REALM_ID as REALM_I10_47_, userentity0_.SERVICE_ACCOUNT_CLIENT_LINK as SERVICE11_47_, userentity0_.TOTP as TOTP12_47_, userentity0_.USERNAME as USERNAM13_47_ from USER_ENTITY userentity0_ where userentity0_.ID=? and userentity0_.REALM_ID=? [50200-173]

11:22:01,442 ERROR [org.keycloak.authentication.AuthenticationProcessor] (default task-10) failed authentication: javax.persistence.PessimisticLockException: could not extract ResultSet

at org.hibernate.jpa.spi.AbstractEntityManagerImpl.wrapLockException(AbstractEntityManagerImpl.java:1831)

at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1720)

at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1677)

at org.hibernate.jpa.internal.QueryImpl.getResultList(QueryImpl.java:458)

at org.keycloak.models.jpa.JpaUserProvider.getUserById(JpaUserProvider.java:228)

at org.keycloak.models.cache.DefaultCacheUserProvider.getUserById(DefaultCacheUserProvider.java:132)

at org.keycloak.models.UserFederationManager.deleteInvalidUser(UserFederationManager.java:111)

at org.keycloak.models.UserFederationManager.validateAndProxyUser(UserFederationManager.java:134)

at org.keycloak.models.UserFederationManager.getUserById(UserFederationManager.java:162)

at org.keycloak.models.sessions.mem.ClientSessionAdapter.getAuthenticatedUser(ClientSessionAdapter.java:192)

at org.keycloak.authentication.AuthenticationProcessor$Result.getUser(AuthenticationProcessor.java:301)

at org.keycloak.authentication.authenticators.browser.AbstractFormAuthenticator.validatePassword(AbstractFormAuthenticator.java:176)

at org.keycloak.authentication.authenticators.browser.UsernamePasswordForm.validateForm(UsernamePasswordForm.java:46)

at org.keycloak.authentication.authenticators.browser.UsernamePasswordForm.action(UsernamePasswordForm.java:39)

at org.keycloak.authentication.DefaultAuthenticationFlow.processAction(DefaultAuthenticationFlow.java:59)

at org.keycloak.authentication.DefaultAuthenticationFlow.processAction(DefaultAuthenticationFlow.java:54)

at org.keycloak.authentication.AuthenticationProcessor.authenticationAction(AuthenticationProcessor.java:533)

at org.keycloak.services.resources.LoginActionsService.processFlow(LoginActionsService.java:306)

at org.keycloak.services.resources.LoginActionsService.processAuthentication(LoginActionsService.java:287)

at org.keycloak.services.resources.LoginActionsService.authenticateForm(LoginActionsService.java:333)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:497)

at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:137)

at org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTarget(ResourceMethodInvoker.java:296)

at org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:250)

at org.jboss.resteasy.core.ResourceLocatorInvoker.invokeOnTargetObject(ResourceLocatorInvoker.java:140)

at org.jboss.resteasy.core.ResourceLocatorInvoker.invoke(ResourceLocatorInvoker.java:103)

at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:356)

at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:179)

at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:220)

at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:56)

at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:51)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)

at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:86)

at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:130)

at org.keycloak.services.filters.KeycloakSessionServletFilter.doFilter(KeycloakSessionServletFilter.java:59)

at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60)

at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:132)

at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:85)

at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)

at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)

at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)

at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)

at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)

at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)

at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)

at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)

at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)

at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:58)

at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:72)

at io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)

at io.undertow.security.handlers.SecurityInitialHandler.handleRequest(SecurityInitialHandler.java:76)

at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)

at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)

at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)

at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:282)

at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:261)

at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:80)

at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:172)

at io.undertow.server.Connectors.executeRootHandler(Connectors.java:199)

at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:774)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

at java.lang.Thread.run(Thread.java:745)

Caused by: org.hibernate.PessimisticLockException: could not extract ResultSet

at org.hibernate.dialect.H2Dialect$2.convert(H2Dialect.java:342)

at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:49)

at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:126)

at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:112)

at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:91)

at org.hibernate.loader.Loader.getResultSet(Loader.java:2066)

at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1863)

at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1839)

at org.hibernate.loader.Loader.doQuery(Loader.java:910)

at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:355)

at org.hibernate.loader.Loader.doList(Loader.java:2554)

at org.hibernate.loader.Loader.doList(Loader.java:2540)

at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2370)

at org.hibernate.loader.Loader.list(Loader.java:2365)

at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:497)

at org.hibernate.hql.internal.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:387)

at org.hibernate.engine.query.spi.HQLQueryPlan.performList(HQLQueryPlan.java:236)

at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1300)

at org.hibernate.internal.QueryImpl.list(QueryImpl.java:103)

at org.hibernate.jpa.internal.QueryImpl.list(QueryImpl.java:573)

at org.hibernate.jpa.internal.QueryImpl.getResultList(QueryImpl.java:449)

... 63 more

Caused by: org.h2.jdbc.JdbcSQLException: Timeout trying to lock table "USER_ENTITY"; SQL statement:

at org.h2.message.DbException.getJdbcSQLException(DbException.java:331)

at org.h2.message.DbException.get(DbException.java:171)

at org.h2.message.DbException.get(DbException.java:148)

at org.h2.table.RegularTable.doLock(RegularTable.java:521)

at org.h2.table.RegularTable.lock(RegularTable.java:455)

at org.h2.table.TableFilter.lock(TableFilter.java:145)

at org.h2.command.dml.Select.queryWithoutCache(Select.java:611)

at org.h2.command.dml.Query.query(Query.java:314)

at org.h2.command.dml.Query.query(Query.java:284)

at org.h2.command.dml.Query.query(Query.java:36)

at org.h2.command.CommandContainer.query(CommandContainer.java:91)

at org.h2.command.Command.executeQuery(Command.java:195)

at org.h2.jdbc.JdbcPreparedStatement.executeQuery(JdbcPreparedStatement.java:106)

at org.jboss.jca.adapters.jdbc.WrappedPreparedStatement.executeQuery(WrappedPreparedStatement.java:462)

at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:82)

... 79 more

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