--- old/test/hotspot/jtreg/gc/arguments/TestDisableDefaultGC.java	2020-02-06 19:34:25.042464382 +0100
+++ new/test/hotspot/jtreg/gc/arguments/TestDisableDefaultGC.java	2020-02-06 19:34:24.878464396 +0100
@@ -44,6 +44,7 @@
                                                                   "-XX:-UseG1GC",
                                                                   "-XX:-UseConcMarkSweepGC",
                                                                   "-XX:+UnlockExperimentalVMOptions",
+                                                                  "-XX:-UseShenandoahGC",
                                                                   "-XX:-UseZGC",
                                                                   "-version");
         OutputAnalyzer output = new OutputAnalyzer(pb.start());