apollo-portal/src/main/java/com/ctrip/framework/apollo/portal/spi/oidc/OidcLocalUserServiceImpl.java/OidcLocalUserServiceImpl/createLocalUser
class OidcLocalUserServiceImpl:  @Transactional(rollbackFor = Exception.class)
  @Override
  public void createLocalUser(UserInfo newUserInfo) {
    UserDetails user = new User(newUserInfo.getUserId(),
        this.placeholderDelegatingPasswordEncoder.encode(""), authorities);
    userDetailsManager.createUser(user);
    this.updateUserInfoInternal(newUserInfo);
  }