diff --git a/boot/platform/src/main/java/com/platform/boot/security/core/user/UsersRepository.java b/boot/platform/src/main/java/com/platform/boot/security/core/user/UsersRepository.java
index 90f675fe..d0a8af25 100644
--- a/boot/platform/src/main/java/com/platform/boot/security/core/user/UsersRepository.java
+++ b/boot/platform/src/main/java/com/platform/boot/security/core/user/UsersRepository.java
@@ -6,7 +6,7 @@
 import reactor.core.publisher.Mono;
 
 /**
- * @author Alex bob(<a href="https://github.com/vnobo">https://github.com/vnobo</a>)
+ * @author <a href="https://github.com/vnobo">AlexBob</a>
  */
 public interface UsersRepository extends R2dbcRepository<User, Long> {
     /**
diff --git a/boot/platform/src/main/java/com/platform/boot/security/core/user/UsersService.java b/boot/platform/src/main/java/com/platform/boot/security/core/user/UsersService.java
index 3cc9bab5..d9b12cfc 100644
--- a/boot/platform/src/main/java/com/platform/boot/security/core/user/UsersService.java
+++ b/boot/platform/src/main/java/com/platform/boot/security/core/user/UsersService.java
@@ -54,7 +54,7 @@ public Mono<User> loadByCode(String code) {
     public Mono<User> add(UserRequest request) {
         return this.usersRepository.existsByUsernameIgnoreCase(request.getUsername()).flatMap(exists -> {
             if (exists) {
-                return Mono.error(RestServerException.withMsg(1101, "User already exists",
+                return Mono.error(RestServerException.withMsg(417, "User already exists",
                         "Username [" + request.getUsername() + "] already exists!"));
             }
             return this.operate(request);
@@ -110,7 +110,6 @@ public Mono<User> save(User user) {
     private String upgradeEncodingIfPassword(String password) {
         if (StringUtils.hasLength(password) &&
                 this.passwordEncoder.upgradeEncoding(password)) {
-            // Encode the password
             return this.passwordEncoder.encode(password);
         }
         return password;
diff --git a/boot/platform/src/main/java/com/platform/boot/security/filter/CaptchaFilter.java b/boot/platform/src/main/java/com/platform/boot/security/filter/CaptchaFilter.java
index 970ee892..b24f9d00 100644
--- a/boot/platform/src/main/java/com/platform/boot/security/filter/CaptchaFilter.java
+++ b/boot/platform/src/main/java/com/platform/boot/security/filter/CaptchaFilter.java
@@ -44,8 +44,7 @@ public CaptchaFilter(CaptchaRepository captchaTokenRepository) {
     }
 
     @Override
-    @NonNull
-    public Mono<Void> filter(@NonNull ServerWebExchange exchange, @NonNull WebFilterChain chain) {
+    public @NonNull Mono<Void> filter(@NonNull ServerWebExchange exchange, @NonNull WebFilterChain chain) {
         return REQUIRE_CAPTCHA_PROTECTION_MATCHER.matches(exchange)
                 .filter(ServerWebExchangeMatcher.MatchResult::isMatch)
                 .switchIfEmpty(Mono.defer(() -> continueFilterChain(exchange, chain).then(Mono.empty())))