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org.hibernate.exception.LockAcquisitionException: could not execute statement: org.keycloak.models.ModelException: javax.persistence.PersistenceException: org.hibernate.exception.LockAcquisitionException: could not execute statement
javax.persistence.PersistenceException: org.hibernate.exception.LockAcquisitionException: could not execute statement: org.keycloak.models.ModelException: javax.persistence.PersistenceException: org.hibernate.exception.LockAcquisitionException: could not execute statement	at org.keycloak.connections.jpa.PersistenceExceptionConverter.convert(PersistenceExceptionConverter.java:44)	at org.keycloak.connections.jpa.PersistenceExceptionConverter.invoke(PersistenceExceptionConverter.java:34)	at com.sun.proxy.$Proxy147.flush(Unknown Source)	at org.keycloak.models.jpa.JpaUserProvider.removeUser(JpaUserProvider.java:117)	at org.keycloak.models.jpa.JpaUserProvider.removeUser(JpaUserProvider.java:97)	at org.keycloak.models.cache.infinispan.DefaultCacheUserProvider.removeUser(DefaultCacheUserProvider.java:283)	at org.keycloak.models.UserFederationManager.deleteInvalidUser(UserFederationManager.java:113)	at org.keycloak.models.UserFederationManager.validateAndProxyUser(UserFederationManager.java:135)	at org.keycloak.models.UserFederationManager.getUserByUsername(UserFederationManager.java:182)	at org.keycloak.models.utils.KeycloakModelUtils.findUserByNameOrEmail(KeycloakModelUtils.java:246)	at org.keycloak.authentication.authenticators.directgrant.ValidateUsername.authenticate(ValidateUsername.java:47)	at org.keycloak.authentication.DefaultAuthenticationFlow.processFlow(DefaultAuthenticationFlow.java:155)	at org.keycloak.authentication.AuthenticationProcessor.authenticateOnly(AuthenticationProcessor.java:776)	at org.keycloak.protocol.oidc.endpoints.TokenEndpoint.buildResourceOwnerPasswordCredentialsGrant(TokenEndpoint.java:369)	at org.keycloak.protocol.oidc.endpoints.TokenEndpoint.build(TokenEndpoint.java:110)	at sun.reflect.GeneratedMethodAccessor284.invoke(Unknown Source)	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:109)	at org.jboss.resteasy.core.ResourceLocatorInvoker.invokeOnTargetObject(ResourceLocatorInvoker.java:135)	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:61)	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.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)