From 7b016c197dd4ffcdb3b39f66bdd378d290a4d0bf 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     | 3 ++-
 1 file changed, 2 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 de9cee17196106..c39542d00505af 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
@@ -3,6 +3,7 @@
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.concurrent.atomic.AtomicReference;
 
+import io.netty.handler.codec.http.HttpHeaderNames;
 import org.jboss.logging.Logger;
 
 import io.netty.handler.codec.http.HttpResponseStatus;
@@ -40,7 +41,7 @@ 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();