--- old/test/jdk/java/net/httpclient/TimeoutBasic.java	2018-08-07 15:14:07.000000000 +0100
+++ new/test/jdk/java/net/httpclient/TimeoutBasic.java	2018-08-07 15:14:06.000000000 +0100
@@ -164,6 +164,7 @@
                     throw new RuntimeException("Unexpected response: " + resp.statusCode());
                 } catch (CompletionException e) {
                     if (!(e.getCause() instanceof HttpTimeoutException)) {
+                        e.printStackTrace(out);
                         throw new RuntimeException("Unexpected exception: " + e.getCause());
                     } else {
                         out.println("Caught expected timeout: " + e.getCause());