--- a/test/jdk/java/net/httpclient/ConcurrentResponses.java	Tue Jun 19 11:52:13 2018 +0100
+++ b/test/jdk/java/net/httpclient/ConcurrentResponses.java	Tue Jun 19 12:04:26 2018 +0100
@@ -35,7 +35,9 @@
  * @library /lib/testlibrary http2/server
  * @build Http2TestServer
  * @build jdk.testlibrary.SimpleSSLContext
- * @run testng/othervm -Djdk.internal.httpclient.debug=true ConcurrentResponses
+ * @run testng/othervm
+ *      -Djdk.httpclient.HttpClient.log=headers,errors,channel
+ *      ConcurrentResponses
  */
 
 import java.io.IOException;