config/src/main/java/org/springframework/security/config/annotation/authentication/configurers/provisioning/UserDetailsManagerConfigurer.java
@Override
	protected void initUserDetailsService() throws Exception {
		for (UserDetailsBuilder userBuilder : userBuilders) {
			getUserDetailsService().createUser(userBuilder.build());
		}
		for (UserDetails userDetails : this.users) {
			getUserDetailsService().createUser(userDetails);
		}
	}
@Override
	protected void initUserDetailsService() throws Exception {
		for (UserDetailsBuilder userBuilder : userBuilders) {
			getUserDetailsService().createUser(userBuilder.build());
		}
		for (UserDetails userDetails : this.users) {
			getUserDetailsService().createUser(userDetails);
		}
	}
Populates the users that have been added.

@throws Exception