--- old/test/hotspot/jtreg/gc/whitebox/TestWBGC.java	2020-01-17 17:09:17.548133375 +0100
+++ new/test/hotspot/jtreg/gc/whitebox/TestWBGC.java	2020-01-17 17:09:17.446133381 +0100
@@ -25,7 +25,7 @@
  * @test TestWBGC
  * @bug 8055098
  * @summary Test verify that WB methods isObjectInOldGen and youngGC works correctly.
- * @requires vm.gc != "Z"
+ * @requires vm.gc != "Z" & vm.gc != "Shenandoah"
  * @library /test/lib
  * @modules java.base/jdk.internal.misc
  *          java.management