diff --git a/.gitignore b/.gitignore
index c9a900d..7dac644 100644
--- a/.gitignore
+++ b/.gitignore
@@ -25,6 +25,6 @@ logs
 .env
 __debug*
 target
-gateway.iml
-gateway.ipr
-gateway.iws
\ No newline at end of file
+exception.iml
+exception.ipr
+exception.iws
\ No newline at end of file
diff --git a/pom.xml b/pom.xml
index 6c71367..05f9c40 100644
--- a/pom.xml
+++ b/pom.xml
@@ -22,7 +22,7 @@
         <dependency>
             <groupId>org.projectlombok</groupId>
             <artifactId>lombok</artifactId>
-            <version>1.18.24</version>
+            <version>1.18.30</version>
         </dependency>
         <dependency>
             <groupId>junit</groupId>
diff --git a/src/main/java/cn/zhangdeman/HashMapCache.java b/src/main/java/cn/zhangdeman/HashMapCache.java
index 3483636..ce6ca93 100644
--- a/src/main/java/cn/zhangdeman/HashMapCache.java
+++ b/src/main/java/cn/zhangdeman/HashMapCache.java
@@ -75,6 +75,7 @@ public class HashMapCache {
             return classList;
         }
         File[] fileList = directory.listFiles();
+        assert fileList != null;
         for (File file : fileList) {
             String fileName = file.getName();
             if (!fileName.endsWith(".class")) {
diff --git a/src/main/java/cn/zhangdeman/ICustomExceptionAnnotation.java b/src/main/java/cn/zhangdeman/ICustomExceptionAnnotation.java
index da66e0f..e2c8a45 100644
--- a/src/main/java/cn/zhangdeman/ICustomExceptionAnnotation.java
+++ b/src/main/java/cn/zhangdeman/ICustomExceptionAnnotation.java
@@ -5,5 +5,5 @@ import java.util.Map;
 // 为了支持注解扫描, 自定义exception必须实现此注解
 public interface ICustomExceptionAnnotation {
     // 获取错误码列表: code => message
-    public Map<String, String> getCodeTable();
+    Map<String, String> getCodeTable();
 }