From 83ba69f81d8473b914ae010a3e89031d1cffb703 Mon Sep 17 00:00:00 2001
From: Jean Bisutti <jeanbisutti@microsoft.com>
Date: Fri, 23 Jan 2026 16:27:57 +0100
Subject: [PATCH] Fix flakiness of live metrics test

---
 .../smoketestapp/HealthCheckServlet.java        | 17 +++++++++++++++++
 .../smoketestapp/TestServlet.java               |  2 +-
 2 files changed, 18 insertions(+), 1 deletion(-)
 create mode 100644 smoke-tests/apps/LiveMetrics/src/main/java/com/microsoft/applicationinsights/smoketestapp/HealthCheckServlet.java

diff --git a/smoke-tests/apps/LiveMetrics/src/main/java/com/microsoft/applicationinsights/smoketestapp/HealthCheckServlet.java b/smoke-tests/apps/LiveMetrics/src/main/java/com/microsoft/applicationinsights/smoketestapp/HealthCheckServlet.java
new file mode 100644
index 00000000000..94cfbe9c118
--- /dev/null
+++ b/smoke-tests/apps/LiveMetrics/src/main/java/com/microsoft/applicationinsights/smoketestapp/HealthCheckServlet.java
@@ -0,0 +1,17 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package com.microsoft.applicationinsights.smoketestapp;
+
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+// this is used by the test infra in order to know when it's ok to start running the tests
+@WebServlet("")
+public class HealthCheckServlet extends HttpServlet {
+
+  @Override
+  protected void doGet(HttpServletRequest request, HttpServletResponse response) {}
+}
diff --git a/smoke-tests/apps/LiveMetrics/src/main/java/com/microsoft/applicationinsights/smoketestapp/TestServlet.java b/smoke-tests/apps/LiveMetrics/src/main/java/com/microsoft/applicationinsights/smoketestapp/TestServlet.java
index 27c2fc24dca..be094226bbb 100644
--- a/smoke-tests/apps/LiveMetrics/src/main/java/com/microsoft/applicationinsights/smoketestapp/TestServlet.java
+++ b/smoke-tests/apps/LiveMetrics/src/main/java/com/microsoft/applicationinsights/smoketestapp/TestServlet.java
@@ -13,7 +13,7 @@
 import org.apache.log4j.LogManager;
 import org.apache.log4j.Logger;
 
-@WebServlet("/*")
+@WebServlet("/test")
 public class TestServlet extends HttpServlet {
 
   private static final Logger logger = LogManager.getLogger("smoketestapp-livemetrics");