diff -r 39c649170e9c -r b0c62cfc1d12 test/jdk/java/net/httpclient/websocket/PendingTextPongClose.java
--- a/test/jdk/java/net/httpclient/websocket/PendingTextPongClose.java	Tue Apr 10 12:09:50 2018 +0100
+++ b/test/jdk/java/net/httpclient/websocket/PendingTextPongClose.java	Tue Apr 10 13:39:38 2018 +0100
@@ -25,6 +25,7 @@
  * @test
  * @build DummyWebSocketServer
  * @run testng/othervm
+ *      -Djdk.internal.httpclient.debug=true
  *      -Djdk.internal.httpclient.websocket.debug=true
  *       PendingTextPongClose
  */