diff --git a/doc/idea/idea-set-up.md b/doc/idea/idea-set-up.md
index 9776f945..713477f1 100644
--- a/doc/idea/idea-set-up.md
+++ b/doc/idea/idea-set-up.md
@@ -15,6 +15,8 @@
 安装好以后，在git bash中输入：git --version，有结果返回则表示安装成功
 ```
 
+- 参看所有的git配置，git config --list
+
 - git下载代码慢的解决方法|无法下载代码的解决方法，取消git配置使用git config --global --unset http.proxy
 
 ```
diff --git a/protocol/src/main/java/com/zfoo/protocol/generate/GenerateProtocolPath.java b/protocol/src/main/java/com/zfoo/protocol/generate/GenerateProtocolPath.java
index aec46319..d9b7426a 100644
--- a/protocol/src/main/java/com/zfoo/protocol/generate/GenerateProtocolPath.java
+++ b/protocol/src/main/java/com/zfoo/protocol/generate/GenerateProtocolPath.java
@@ -55,8 +55,8 @@ public abstract class GenerateProtocolPath {
 
     public static String getRelativePath(short protocolId, short relativeProtocolId) {
         // 不是折叠协议的话，protocolPathMap一定是空，这里返回“”，上层会解析为同一个文件下
-        if(protocolPathMap.size() == 0){
-            return "";
+        if(CollectionUtils.isEmpty(protocolPathMap)){
+            return StringUtils.EMPTY;
         }
         var protocolPath = protocolPathMap.get(protocolId);
         var relativePath = protocolPathMap.get(relativeProtocolId);