diff --git a/packages/sdk-java/qwencode/src/test/java/com/alibaba/qwen/code/daemon/DaemonSessionClientTest.java b/packages/sdk-java/qwencode/src/test/java/com/alibaba/qwen/code/daemon/DaemonSessionClientTest.java
index 2073583aab..d0fda9cfb5 100644
--- a/packages/sdk-java/qwencode/src/test/java/com/alibaba/qwen/code/daemon/DaemonSessionClientTest.java
+++ b/packages/sdk-java/qwencode/src/test/java/com/alibaba/qwen/code/daemon/DaemonSessionClientTest.java
@@ -261,11 +261,14 @@ class DaemonSessionClientTest {
         CountDownLatch cancelReceived = new CountDownLatch(1);
         server.createContext("/session/session-1/cancel", exchange -> {
             cancelReceived.countDown();
+            exchange.getResponseHeaders().set("Connection", "close");
             exchange.sendResponseHeaders(204, -1);
             exchange.close();
         });
-        server.createContext("/session/session-1/detach", noContent());
-        server.createContext("/session/session-2/detach", noContent());
+        server.createContext("/session/session-1/detach",
+                noContentAndCloseConnection());
+        server.createContext("/session/session-2/detach",
+                noContentAndCloseConnection());
 
         try (DaemonClient daemon = newClient();
                 DaemonSessionClient first = daemon.createSession()) {
@@ -2949,6 +2952,14 @@ class DaemonSessionClientTest {
         };
     }
 
+    private static HttpHandler noContentAndCloseConnection() {
+        return exchange -> {
+            exchange.getResponseHeaders().set("Connection", "close");
+            exchange.sendResponseHeaders(204, -1);
+            exchange.close();
+        };
+    }
+
     private static void sendJson(HttpExchange exchange, int status, String body)
             throws IOException {
         byte[] bytes = body.getBytes(StandardCharsets.UTF_8);