diff --git a/dubbo-plugin/dubbo-qos/src/test/java/org/apache/dubbo/qos/legacy/TraceTelnetHandlerTest.java b/dubbo-plugin/dubbo-qos/src/test/java/org/apache/dubbo/qos/legacy/TraceTelnetHandlerTest.java
index 8b3e878e133..63202a92671 100644
--- a/dubbo-plugin/dubbo-qos/src/test/java/org/apache/dubbo/qos/legacy/TraceTelnetHandlerTest.java
+++ b/dubbo-plugin/dubbo-qos/src/test/java/org/apache/dubbo/qos/legacy/TraceTelnetHandlerTest.java
@@ -71,7 +71,8 @@ public void test() throws Exception {
         String key = method != null && method.length() > 0 ? type.getName() + "." + method : type.getName();
         Field tracers = TraceFilter.class.getDeclaredField("TRACERS");
         tracers.setAccessible(true);
-        ConcurrentHashMap<String, Set<Channel>> map = (ConcurrentHashMap<String, Set<Channel>>) tracers.get(new ConcurrentHashMap<String, Set<Channel>>());
+        ConcurrentHashMap<String, Set<Channel>> map =
+                (ConcurrentHashMap<String, Set<Channel>>) tracers.get(new ConcurrentHashMap<String, Set<Channel>>());
 
         Set<Channel> channels = map.getOrDefault(key, null);
         Assertions.assertNotNull(channels);