From 2105c297970dce19d7723a72b14646d7f5c574b7 Mon Sep 17 00:00:00 2001
From: Stuart Douglas <stuart.w.douglas@gmail.com>
Date: Thu, 22 Jul 2021 08:03:29 +1000
Subject: [PATCH] Add connection: close if the server is shut down

Fixes #18890
---
 .../vertx/http/runtime/filters/GracefulShutdownFilter.java    | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/extensions/vertx-http/runtime/src/main/java/io/quarkus/vertx/http/runtime/filters/GracefulShutdownFilter.java b/extensions/vertx-http/runtime/src/main/java/io/quarkus/vertx/http/runtime/filters/GracefulShutdownFilter.java
index de9cee1719610..f93add219fc3d 100644
--- a/extensions/vertx-http/runtime/src/main/java/io/quarkus/vertx/http/runtime/filters/GracefulShutdownFilter.java
+++ b/extensions/vertx-http/runtime/src/main/java/io/quarkus/vertx/http/runtime/filters/GracefulShutdownFilter.java
@@ -5,6 +5,7 @@
 
 import org.jboss.logging.Logger;
 
+import io.netty.handler.codec.http.HttpHeaderNames;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import io.quarkus.runtime.shutdown.ShutdownListener;
 import io.vertx.core.Handler;
@@ -40,7 +41,8 @@ public void handle(Void event) {
     @Override
     public void handle(HttpServerRequest event) {
         if (!running) {
-            event.response().setStatusCode(HttpResponseStatus.SERVICE_UNAVAILABLE.code()).end();
+            event.response().setStatusCode(HttpResponseStatus.SERVICE_UNAVAILABLE.code())
+                    .putHeader(HttpHeaderNames.CONNECTION, "close").end();
             return;
         }
         currentRequestCount.incrementAndGet();