Getting java.lang.RuntimeException: PBKDF2 algorithm not found error

I built a new keycloak image using the instructions mentioned in https://hub.docker.com/r/jboss/keycloak/ under "Building image with Keycloak from different sources". It was working fine till last week but when I tried to build new image again, I am getting java.lang.RuntimeException: PBKDF2 algorithm not found error on starting of the container. Anyone has any idea about this error? I am guessing it's happening while running the add-keycloak-user script but I am not sure.