diff -r 8e1ed2a15845 -r 4690a2871b44 test/jdk/java/net/httpclient/websocket/DummyWebSocketServer.java
--- a/test/jdk/java/net/httpclient/websocket/DummyWebSocketServer.java	Wed May 02 10:47:16 2018 +0200
+++ b/test/jdk/java/net/httpclient/websocket/DummyWebSocketServer.java	Wed May 02 02:36:17 2018 -0700
@@ -200,6 +200,7 @@
             thread.start();
         } catch (IOException e) {
             close(ssc);
+            throw e;
         }
         err.println("Started at: " + getURI());
     }