### Question:
SingleJWT { public JWTCreator.Builder getBuilder() { return builder; } SingleJWT(Algorithm algorithm, long expire);  SingleJWT(String secret, long expire); String generateToken(String tokenType, long identity, String scope, long expire); Map<String, Claim> decodeToken(String token); JWTVerifier getVerifier(); JWTCreator.Builder getBuilder(); Algorithm getAlgorithm(); Long getExpire();  }### Answer:
@Test public void getBuilder() { Algorithm algorithm = Algorithm.HMAC256("secret"); SingleJWT jwt = new SingleJWT(algorithm, 1000); assertNotNull(jwt.getBuilder()); }