diff --git a/dubbo-common/src/main/java/org/apache/dubbo/common/config/configcenter/file/FileSystemDynamicConfiguration.java b/dubbo-common/src/main/java/org/apache/dubbo/common/config/configcenter/file/FileSystemDynamicConfiguration.java
index 2544c056a47..36fb61f913b 100644
--- a/dubbo-common/src/main/java/org/apache/dubbo/common/config/configcenter/file/FileSystemDynamicConfiguration.java
+++ b/dubbo-common/src/main/java/org/apache/dubbo/common/config/configcenter/file/FileSystemDynamicConfiguration.java
@@ -507,7 +507,7 @@ protected ThreadPoolExecutor getWorkersThreadPool() {
         return super.getWorkersThreadPool();
     }
 
-    private <V> V executeMutually(Object mutex, Callable<V> callable) {
+    private <V> V executeMutually(final Object mutex, Callable<V> callable) {
         V value = null;
         synchronized (mutex) {
             try {
diff --git a/dubbo-metadata/dubbo-metadata-api/src/main/java/org/apache/dubbo/metadata/report/support/AbstractMetadataReport.java b/dubbo-metadata/dubbo-metadata-api/src/main/java/org/apache/dubbo/metadata/report/support/AbstractMetadataReport.java
index 3fe0eb1e438..1d394017447 100644
--- a/dubbo-metadata/dubbo-metadata-api/src/main/java/org/apache/dubbo/metadata/report/support/AbstractMetadataReport.java
+++ b/dubbo-metadata/dubbo-metadata-api/src/main/java/org/apache/dubbo/metadata/report/support/AbstractMetadataReport.java
@@ -394,7 +394,7 @@ class MetadataReportRetry {
 
         final ScheduledExecutorService retryExecutor = Executors.newScheduledThreadPool(0, new NamedThreadFactory("DubboMetadataReportRetryTimer", true));
         volatile ScheduledFuture retryScheduledFuture;
-        AtomicInteger retryCounter = new AtomicInteger(0);
+        final AtomicInteger retryCounter = new AtomicInteger(0);
         // retry task schedule period
         long retryPeriod;
         // if no failed report, wait how many times to run retry task.