diff --git a/config/src/test/java/com/alibaba/nacos/config/server/utils/ResponseUtilTest.java b/config/src/test/java/com/alibaba/nacos/config/server/utils/ResponseUtilTest.java
index abb7e6efc..940b85efa 100644
--- a/config/src/test/java/com/alibaba/nacos/config/server/utils/ResponseUtilTest.java
+++ b/config/src/test/java/com/alibaba/nacos/config/server/utils/ResponseUtilTest.java
@@ -24,8 +24,7 @@ import java.io.UnsupportedEncodingException;
 
 public class ResponseUtilTest {
     
-    String lineSeparator = java.security.AccessController.doPrivileged(
-            new sun.security.action.GetPropertyAction("line.separator"));
+    String lineSeparator = System.lineSeparator();
     
     @Test
     public void testWriteErrMsg() {