How to enable post service call from client using spring rest security x509 authentication

[KMani1992]

I have tried to enable post service call from REST client using spring rest security x509 authentication, but it throws below exception

"exception": "org.springframework.web.client.HttpClientErrorException",
"message": "403 null"
#I have referred this repository
https://github.com/chathurangat/spring-rest-security-x509-authentication

Any one can help to resolve the issue, thanks in advance

#Client Side Request Program
// configuring the keyStore and trustStore for the client application System.setProperty("javax.net.ssl.keyStore", "src/main/resources/clientkeystore.p12"); System.setProperty("javax.net.ssl.keyStorePassword", "3edc4rfv"); System.setProperty("javax.net.ssl.trustStore", "src/main/resources/clienttruststore.p12"); System.setProperty("javax.net.ssl.trustStorePassword", "3edc4rfv");

RestTemplate template=new RestTemplate();        
DTO dto=new DTO();
dto.setName("KMK");
RequestEntity request=null;
try {
    request = RequestEntity.post(new URI("https://localhost:8443/logged_info_post")).accept(MediaType.APPLICATION_JSON).body(dto);
} catch (URISyntaxException e) {        
    e.printStackTrace();
}
ResponseEntity<String> response = template.exchange(request, String.class);
return response.getBody();

#Server Side Program
@RequestMapping(value = "/logged_info_post", method = RequestMethod.POST ) public @responsebody String helloController_post(@requestbody DTO dto) { String loggedUser; Object principal = SecurityContextHolder.getContext().getAuthentication().getPrincipal();

if (principal instanceof UserDetails) {
    loggedUser = ((UserDetails) principal).getUsername();
} else {
    loggedUser = principal.toString();
}
return "X.509 authentication done! REST client has been identified as ["+loggedUser+"] " + dto.getName();

}