--- old/test/hotspot/jtreg/gc/arguments/TestDisableDefaultGC.java	2018-11-26 21:30:25.857907416 +0100
+++ new/test/hotspot/jtreg/gc/arguments/TestDisableDefaultGC.java	2018-11-26 21:30:25.708908730 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -44,6 +44,7 @@
                                                                   "-XX:-UseG1GC",
                                                                   "-XX:-UseConcMarkSweepGC",
                                                                   "-XX:+UnlockExperimentalVMOptions",
+                                                                  "-XX:-UseShenandoahGC",
                                                                   "-XX:-UseZGC",
                                                                   "-version");
         OutputAnalyzer output = new OutputAnalyzer(pb.start());