JWT Authentication is not working in my spring boot project. 401 Unauthorized is appearing.

[devout harbor]

protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain)
throws ServletException, IOException {
String jwt = request.getHeader(JwtConstants.JWT_HEADER);

    if (jwt != null) {
        System.out.println("jwtoriginal "+jwt.toString());
        jwt = jwt.substring(7);
        System.out.println("jwt "+jwt.toString());
        try {
            SecretKey key = Keys.hmacShaKeyFor(JwtConstants.SECRET_KEY.getBytes());
            System.out.println("key "+key);
            Claims claims = Jwts.parserBuilder().setSigningKey(key).build().parseClaimsJws(jwt).getBody();
            System.out.println("claims "+claims);
            String email = String.valueOf(claims.get("email"));
            System.out.println("email "+email);
            String authorities = String.valueOf(claims.get("authorities"));
            System.out.println("authorities "+authorities);
            List<GrantedAuthority> auths = AuthorityUtils.commaSeparatedStringToAuthorityList(authorities);
            Authentication authentication = new UsernamePasswordAuthenticationToken(email, null, auths);
            SecurityContextHolder.getContext().setAuthentication(authentication);
        } catch (Exception e) {
            e.printStackTrace();;
            throw new BadCredentialsException("Invalid token.... from jwt validator");
        }
    }

    filterChain.doFilter(request, response);
}

While printing jwtoriginal it is showing as g== . From claims, there is no print statement.

In postman, requestbody of user contains,
{
"firstName":"Adwaith",
"lastName":"Manoj",
"email":"[e-mail]",
"password":"123456",
"mobile":"9788787866"
}

User class : -

[wraith carbon]

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[wraith carbon]

Please format your code to make it more readable.
For java, it should look like this:
```​​​`​java
public void foo() {

}
​​​`​```