--- old/test/hotspot/jtreg/serviceability/sa/ClhsdbJhisto.java	2020-01-17 17:09:19.920133245 +0100
+++ new/test/hotspot/jtreg/serviceability/sa/ClhsdbJhisto.java	2020-01-17 17:09:19.819133250 +0100
@@ -34,6 +34,7 @@
  * @bug 8191658
  * @summary Test clhsdb jhisto command
  * @requires vm.hasSA
+ * @requires vm.gc != "Shenandoah"
  * @library /test/lib
  * @run main/othervm ClhsdbJhisto
  */