diff --git a/src/framework/chef.c b/src/framework/chef.c
index 6a78794..886fef3 100644
--- a/src/framework/chef.c
+++ b/src/framework/chef.c
@@ -3,9 +3,9 @@
  * -------------------------------------------------------------
  * File Name     : chef.c
  * File Authors  : 曾奥然 <ccmywish@qq.com>
- * Contributors  : Nul None <nul@none.org>
+ * Contributors  : BingChunMoLi <bingchunmoli@bingchunmoli.com>
  * Created On    : <2025-08-09>
- * Last Modified : <2025-08-22>
+ * Last Modified : <2025-08-27>
  *
  * chef DSL: for chefs (recipe makers) to define a target
  * ------------------------------------------------------------*/
@@ -374,3 +374,15 @@ chef_set_sources_last_updated (Target_t *target, char *date)
 
   target->sources_last_updated = xy_strdup (date);
 }
+
+
+/**
+ * @note 某些 target 需要修改 User-Agent
+ * 由于单独测速 (chsrc measure) 的时候也需要进行此项修改，
+ * 所以该函数不能仅仅放在 _setsrc() 里，而是应当放在 _prelude() 里
+ */
+void
+chef_set_user_agent (char *user_agent)
+{
+  ProgStatus.user_agent = user_agent;
+}
diff --git a/src/framework/core.c b/src/framework/core.c
index 62ed6c3..c4f5486 100644
--- a/src/framework/core.c
+++ b/src/framework/core.c
@@ -1112,11 +1112,6 @@ chsrc_determine_chgtype (ChgType_t type)
   ProgStatus.chgtype =  chsrc_in_reset_mode() ? ChgType_Reset : type;
 }
 
-void
-chsrc_custom_user_agent (char *user_agent)
-{
-  ProgStatus.user_agent = user_agent;
-}
 
 #define MSG_EN_PUBLIC_URL "If the URL you specify is a public service, you are invited to contribute: chsrc issue"
 #define MSG_CN_PUBLIC_URL "若您指定的URL为公有服务，邀您参与贡献: chsrc issue"
diff --git a/src/recipe/lang/Java.c b/src/recipe/lang/Java.c
index 120ce8b..462952e 100644
--- a/src/recipe/lang/Java.c
+++ b/src/recipe/lang/Java.c
@@ -20,7 +20,9 @@ pl_java_prelude ()
   chef_allow_local_mode (this, CanNot, NULL, NULL);
   chef_forbid_english(this);
   chef_allow_user_define(this);
-  chsrc_custom_user_agent("Maven/3.9.11");
+
+  // HuaweiCDN 需要该项
+  chef_set_user_agent ("Maven/3.9.11");
 
   def_sources_begin()
   {&UpstreamProvider, "https://repo1.maven.org/maven2/",                                  DelegateToUpstream},