How to get data in response body when user get unauthorized - spring

Question

I have implemented all the necessary configuration for generating response when user get Unauthorized but I'm getting empty response with 401 status code.
Configuration class
class WebSecurityConfig extends WebSecurityConfigurerAdapte {
#Autowired
private UserService myUserDetailsService;
// #Autowired
// private JwtAuthenticationEntryPoint entryPoint;
public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
auth.userDetailsService(myUserDetailsService);
}
#Bean
public BCryptPasswordEncoder passwordEncoder() {
return new BCryptPasswordEncoder();
}
#Bean
public JwtRequestFilter jwtRequestFilter(){
return new JwtRequestFilter();
}
#SuppressWarnings("deprecation")
#Override
#Bean
public AuthenticationManager authenticationManagerBean() throws Exception {
return super.authenticationManagerBean();
}
#Bean
public JwtAuthenticationEntryPoint jwtAuthenticationEntryPoint() {
return new JwtAuthenticationEntryPoint();
}
#Override
protected void configure(HttpSecurity httpSecurity) throws Exception {
httpSecurity.csrf().disable()
.authorizeRequests().antMatchers("/users/authenticate").permitAll()
.antMatchers("/users/add").permitAll()
.anyRequest().authenticated().and()
.sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS)
.and()
.exceptionHandling().authenticationEntryPoint(jwtAuthenticationEntryPoint());
httpSecurity.addFilterBefore(jwtRequestFilter(), UsernamePasswordAuthenticationFilter.class);
}
}
jwtAuthenticationEntryPoint class
#Component
public class JwtAuthenticationEntryPoint implements AuthenticationEntryPoint {
private static Logger logger = LoggerFactory.getLogger(JwtAuthenticationEntryPoint.class);
#Override
public void commence(HttpServletRequest request, HttpServletResponse response, AuthenticationException authException) throws IOException, ServletException {
response.sendError(401, "Unauthorized");
response.setStatus(SC_UNAUTHORIZED);
response.setContentType(MediaType.APPLICATION_JSON_VALUE);
ExceptionResponse res = new ExceptionResponse(HttpStatus.UNAUTHORIZED, ExceptionMessage.USER_UNAUTHORIZED);
logger.error("User unauthorized", authException);
byte[] body = new ObjectMapper().writeValueAsBytes(res);
response.getOutputStream().write(body);
}
Exceptionhandler.class
#RestControllerAdvice
public class CustomizedResponseEntityExceptionHandler {
#ExceptionHandler(UserUnauthorizedException.class)
public ResponseEntity<ExceptionResponse> handleBadRequestExceptions(UserUnauthorizedException unauthorizedException) {
ExceptionResponse response = new ExceptionResponse(unauthorizedException.getHttpStatus(), unauthorizedException.getMessage());
return new ResponseEntity<>(response, HttpStatus.UNAUTHORIZED);
}
}
UserUnauthroized class
#Getter
public class UserUnauthorizedException extends RuntimeException{
/**
*
*/
private static final long serialVersionUID = -7144521128771062072L;
private HttpStatus httpStatus;
public UserUnauthorizedException(String message) {
super(message);
this.httpStatus = HttpStatus.UNAUTHORIZED;
}
public UserUnauthorizedException(String message, HttpStatus httpStatus) {
super(message);
this.httpStatus = httpStatus;
}
}
ExceptionResponse class
#Getter
public class ExceptionResponse {
// #JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "yyyy-MM-dd hh:mm:ss", timezone = "Asia/Kolkata")
// #JsonFormat(timezone = "Asia/Kolkata")
private Date timestamp;
private Integer httpStatusCode;
private HttpStatus httpStatus;
private String message;
private String debugMessage;
private ExceptionResponse() {
timestamp = new Date();
}
public ExceptionResponse(HttpStatus status, String message) {
this();
this.httpStatusCode = status.value();
this.httpStatus = status;
this.message = message;
}
public ExceptionResponse(HttpStatus status, String message, Throwable ex) {
this();
this.httpStatusCode = status.value();
this.httpStatus = status;
this.message = message;
this.debugMessage = ex.getLocalizedMessage();
}
}
OutPut I got while test in postman
enter image description here
while we test the services in postman we are getting empty response in the body!!
We are expecting response body when user get unautorized.