diff --git a/src/main/java/club/joylink/rtss/simulation/cbtc/training2/index/Index.java b/src/main/java/club/joylink/rtss/simulation/cbtc/training2/index/Index.java
index 716c5764f..da87b9418 100644
--- a/src/main/java/club/joylink/rtss/simulation/cbtc/training2/index/Index.java
+++ b/src/main/java/club/joylink/rtss/simulation/cbtc/training2/index/Index.java
@@ -41,13 +41,13 @@ public class Index {
         CONTINUITY_TEST_INDEX(true, IndexAlgorithmTestService.class, null),
         ;
 
-        private boolean continuity; // 频率 ture:连续性计算、false:触发性计算
+        private final boolean continuity; // 频率 ture:连续性计算、false:触发性计算
 
-        private Class algorithmService; // 指标计算统计service类名
+        private final Class<?> algorithmService; // 指标计算统计service类名
 
-        private List<Operation.Type> operationType; // 触发式指标事件类型
+        private final List<Operation.Type> operationType; // 触发式指标事件类型
 
-        Type(boolean continuity, Class algorithmService, List<Operation.Type> operationType) {
+        Type(boolean continuity, Class<?> algorithmService, List<Operation.Type> operationType) {
             this.continuity = continuity;
             this.algorithmService = algorithmService;
             this.operationType = operationType;