'REST API method doesn't work with json format. [Java]

I am trying to test a REST API method in postman. The idea is that when I test it using x-wwww-form-urlencoded, I get the correct result, but when trying with Json format I get status 500 - "Internal Server Error".

This is the POST method that I am trying to test:

@PostMapping(value = "/send", produces = {"application/json"}, consumes = {"application/x-www-form-urlencoded", "application/json"})
    public void sendFeedback(UserDTORegister userDTORegister,
                             BindingResult bindingResult){
        if(bindingResult.hasErrors()){
            throw new ValidationException("Feedback is not valid");
        }
        // create a mail sender
        JavaMailSenderImpl mailSender = new JavaMailSenderImpl();
        mailSender.setHost(this.emailConfig.getHost());
        mailSender.setPort(this.emailConfig.getPort());
        mailSender.setUsername(this.emailConfig.getUsername());
        mailSender.setPassword(this.emailConfig.getPassword());

        // create an email instance
        SimpleMailMessage mailMessage = new SimpleMailMessage();
        mailMessage.setFrom("[email protected]");
        mailMessage.setTo(userDTORegister.getEmail());
        mailMessage.setSubject("New account created - Hop Menu");
        mailMessage.setText(
                        "New account created. Welcome to Hop Menu! Credentials ->" +
                        " email: " + userDTORegister.getEmail() +
                        " pass: " + userDTORegister.getPassword());

        // Send mail
        mailSender.send(mailMessage);

    }

I would really appreciate if you could help me. Below are the images for my tests, using json or x-www-form-urlencoded.

Using x-www-form-urlencoded: Using x-www-form-urlencoded

Using Json: Using Json

javajsonrestweb


Solution 1:[1]

Solved it, using @RequestBody before my UserDTORegister param. It seems that you have to use @RequestBody when working with Json format.

Sources

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Source: Stack Overflow

Solution Source
Solution 1 Mihalache Rares

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