diff --git a/hippo4j-server/hippo4j-config/src/main/java/cn/hippo4j/config/notify/DefaultPublisher.java b/hippo4j-server/hippo4j-config/src/main/java/cn/hippo4j/config/notify/DefaultPublisher.java
index c43fb591..39612b11 100644
--- a/hippo4j-server/hippo4j-config/src/main/java/cn/hippo4j/config/notify/DefaultPublisher.java
+++ b/hippo4j-server/hippo4j-config/src/main/java/cn/hippo4j/config/notify/DefaultPublisher.java
@@ -79,7 +79,7 @@ public class DefaultPublisher extends Thread implements EventPublisher {
     private void openEventHandler() {
         try {
             int waitTimes = 60;
-            for (; ; ) {
+            for (;;) {
                 if (shutdown || hasSubscriber() || waitTimes <= 0) {
                     break;
                 }
@@ -90,7 +90,7 @@ public class DefaultPublisher extends Thread implements EventPublisher {
                 }
                 waitTimes--;
             }
-            for (; ; ) {
+            for (;;) {
                 if (shutdown) {
                     break;
                 }
diff --git a/hippo4j-server/hippo4j-config/src/main/java/cn/hippo4j/config/service/LongPollingService.java b/hippo4j-server/hippo4j-config/src/main/java/cn/hippo4j/config/service/LongPollingService.java
index 7a96832e..a485048c 100644
--- a/hippo4j-server/hippo4j-config/src/main/java/cn/hippo4j/config/service/LongPollingService.java
+++ b/hippo4j-server/hippo4j-config/src/main/java/cn/hippo4j/config/service/LongPollingService.java
@@ -105,7 +105,7 @@ public class LongPollingService {
         @Override
         public void run() {
             try {
-                for (Iterator<ClientLongPolling> iter = allSubs.iterator(); iter.hasNext(); ) {
+                for (Iterator<ClientLongPolling> iter = allSubs.iterator(); iter.hasNext();) {
                     ClientLongPolling clientSub = iter.next();
                     String identity = groupKey + GROUP_KEY_DELIMITER + identify;
                     List<String> parseMapForFilter = CollectionUtil.newArrayList(identity);