diff --git a/shenyu-register-center/shenyu-register-common/src/main/java/org/apache/shenyu/register/common/config/ShenyuClientConfig.java b/shenyu-register-center/shenyu-register-common/src/main/java/org/apache/shenyu/register/common/config/ShenyuClientConfig.java
index 0214f13bafb6..31a4065b425c 100644
--- a/shenyu-register-center/shenyu-register-common/src/main/java/org/apache/shenyu/register/common/config/ShenyuClientConfig.java
+++ b/shenyu-register-center/shenyu-register-common/src/main/java/org/apache/shenyu/register/common/config/ShenyuClientConfig.java
@@ -27,7 +27,7 @@
  * The type Shenyu client config.
  */
 public final class ShenyuClientConfig {
-    
+
     private Map<String, ClientPropertiesConfig> client = new HashMap<>() {
         @Override
         public ClientPropertiesConfig get(final Object key) {
diff --git a/shenyu-register-center/shenyu-register-common/src/main/java/org/apache/shenyu/register/common/dto/ApiDocRegisterDTO.java b/shenyu-register-center/shenyu-register-common/src/main/java/org/apache/shenyu/register/common/dto/ApiDocRegisterDTO.java
index eaefce47232b..a7e8a045366b 100644
--- a/shenyu-register-center/shenyu-register-common/src/main/java/org/apache/shenyu/register/common/dto/ApiDocRegisterDTO.java
+++ b/shenyu-register-center/shenyu-register-common/src/main/java/org/apache/shenyu/register/common/dto/ApiDocRegisterDTO.java
@@ -382,7 +382,7 @@ public boolean equals(final Object o) {
         if (this == o) {
             return true;
         }
-        if (o == null || getClass() != o.getClass()) {
+        if (Objects.isNull(o) || getClass() != o.getClass()) {
             return false;
         }
         ApiDocRegisterDTO that = (ApiDocRegisterDTO) o;
diff --git a/shenyu-register-center/shenyu-register-common/src/main/java/org/apache/shenyu/register/common/dto/MetaDataRegisterDTO.java b/shenyu-register-center/shenyu-register-common/src/main/java/org/apache/shenyu/register/common/dto/MetaDataRegisterDTO.java
index 2c4cbcab2205..8dab26d0dc7b 100644
--- a/shenyu-register-center/shenyu-register-common/src/main/java/org/apache/shenyu/register/common/dto/MetaDataRegisterDTO.java
+++ b/shenyu-register-center/shenyu-register-common/src/main/java/org/apache/shenyu/register/common/dto/MetaDataRegisterDTO.java
@@ -485,7 +485,7 @@ public boolean equals(final Object o) {
         if (this == o) {
             return true;
         }
-        if (o == null || getClass() != o.getClass()) {
+        if (Objects.isNull(o) || getClass() != o.getClass()) {
             return false;
         }
         MetaDataRegisterDTO that = (MetaDataRegisterDTO) o;
diff --git a/shenyu-register-center/shenyu-register-common/src/main/java/org/apache/shenyu/register/common/dto/URIRegisterDTO.java b/shenyu-register-center/shenyu-register-common/src/main/java/org/apache/shenyu/register/common/dto/URIRegisterDTO.java
index 955ec910bcf8..36b169029081 100644
--- a/shenyu-register-center/shenyu-register-common/src/main/java/org/apache/shenyu/register/common/dto/URIRegisterDTO.java
+++ b/shenyu-register-center/shenyu-register-common/src/main/java/org/apache/shenyu/register/common/dto/URIRegisterDTO.java
@@ -269,7 +269,7 @@ public boolean equals(final Object o) {
             return Boolean.TRUE;
         }
 
-        if (o == null || getClass() != o.getClass()) {
+        if (Objects.isNull(o) || getClass() != o.getClass()) {
             return Boolean.FALSE;
         }