--- a/src/jdk.httpserver/share/classes/com/sun/net/httpserver/HttpExchange.java	Mon Sep 02 11:31:12 2019 +0200
+++ b/src/jdk.httpserver/share/classes/com/sun/net/httpserver/HttpExchange.java	Mon Sep 02 15:58:44 2019 +0100
@@ -64,7 +64,7 @@
  * @since 1.6
  */
 
-public abstract class HttpExchange {
+public abstract class HttpExchange implements AutoCloseable {
 
     protected HttpExchange () {
     }