diff --git a/acs/nladmin-system/src/main/java/org/nl/start/auto/run/NDCSocketConnectionAutoRun.java b/acs/nladmin-system/src/main/java/org/nl/start/auto/run/NDCSocketConnectionAutoRun.java
index 58ca9f3..0106d75 100644
--- a/acs/nladmin-system/src/main/java/org/nl/start/auto/run/NDCSocketConnectionAutoRun.java
+++ b/acs/nladmin-system/src/main/java/org/nl/start/auto/run/NDCSocketConnectionAutoRun.java
@@ -1025,10 +1025,10 @@ public class NDCSocketConnectionAutoRun extends AbstractAutoRunnable {
 
     public static List<String> getNDCFaultInfo(int errorCode) {
         if (errorCode == 0) {
-            return Arrays.asList("正常");
+            return Collections.singletonList("正常");
         } else {
             if (errorCode > Math.pow(2, ERROR.length - 1)) {
-                return Arrays.asList("NDC上报故障代码有误");
+                return Collections.singletonList("NDC上报故障代码有误");
             } else {
                 int index = 0;
                 ArrayList<String> faultInfo = new ArrayList<>();