NullPointerException is thrown from MapUserSessionProviderFactory

Issue

• NullPointerException is thrown from MapUserSessionProviderFactory.create, and the request ends with status code 500 error.

Caused by: java.lang.NullPointerException
    at org.keycloak.keycloak-model-map@18.0.3.redhat-00001//org.keycloak.models.map.userSession.MapUserSessionProviderFactory.create(MapUserSessionProviderFactory.java:85)
    at org.keycloak.keycloak-model-map@18.0.3.redhat-00001//org.keycloak.models.map.userSession.MapUserSessionProviderFactory.onEvent(MapUserSessionProviderFactory.java:106)
    at org.keycloak.keycloak-services@18.0.3.redhat-00001//org.keycloak.services.DefaultKeycloakSessionFactory.publish(DefaultKeycloakSessionFactory.java:92)
    at org.keycloak.keycloak-server-spi@18.0.3.redhat-00001//org.keycloak.models.UserManager.removeUser(UserManager.java:37)
    at org.keycloak.keycloak-services@18.0.3.redhat-00001//org.keycloak.storage.UserStorageManager.lambda$deleteInvalidUser$0(UserStorageManager.java:143)
    at org.keycloak.keycloak-server-spi-private@18.0.3.redhat-00001//org.keycloak.models.utils.KeycloakModelUtils.runJobInTransaction(KeycloakModelUtils.java:242)
    at org.keycloak.keycloak-services@18.0.3.redhat-00001//org.keycloak.storage.UserStorageManager.deleteInvalidUser(UserStorageManager.java:137)
    at org.keycloak.keycloak-services@18.0.3.redhat-00001//org.keycloak.storage.UserStorageManager.importValidation(UserStorageManager.java:118)
    at org.keycloak.keycloak-services@18.0.3.redhat-00001//org.keycloak.storage.UserStorageManager.getUserById(UserStorageManager.java:284)
    at org.keycloak.keycloak-model-infinispan@18.0.3.redhat-00001//org.keycloak.models.cache.infinispan.UserCacheSession.getUserById(UserCacheSession.java:207)
    at org.keycloak.keycloak-model-jpa@18.0.3.redhat-00001//org.keycloak.models.jpa.JpaUserProvider.lambda$searchForUserStream$6(JpaUserProvider.java:911)