diff --git a/crates/core/src/game/java/discover.rs b/crates/core/src/game/java/discover.rs
index 7cc2700..bfd9d01 100644
--- a/crates/core/src/game/java/discover.rs
+++ b/crates/core/src/game/java/discover.rs
@@ -225,8 +225,13 @@ pub fn path_key(path: &Path) -> String {
 
 #[cfg(test)]
 mod tests {
-    use super::{dedupe, parse_java_home, path_key, standard_roots, standard_roots_in};
+    use super::{dedupe, parse_java_home, path_key, standard_roots};
     use crate::game::java::probe::{JavaOrigin, JavaRuntime};
+    // 这两个只有 Termux 扫描的两个测试用，而那两个测试是 `cfg(unix)`——导入必须同样 gate，
+    // 否则 Windows 上不编译测试、导入就成了未使用（`-D warnings` 直接判错）。
+    #[cfg(unix)]
+    use super::standard_roots_in;
+    #[cfg(unix)]
     use crate::platform::paths::MapEnv;
 
     fn runtime(path: &str, origin: JavaOrigin) -> JavaRuntime {