presto-main/src/main/java/io/prestosql/server/security/PasswordAuthenticator.java/PasswordAuthenticator/PasswordAuthenticator
class PasswordAuthenticator:    @Inject
    public PasswordAuthenticator(PasswordAuthenticatorManager authenticatorManager)
    {
        this.authenticatorManager = requireNonNull(authenticatorManager, "authenticatorManager is null");
        authenticatorManager.setRequired();
    }