--- old/test/hotspot/jtreg/gc/TestAllocateHeapAt.java	2018-06-06 00:36:19.532306154 +0200
+++ new/test/hotspot/jtreg/gc/TestAllocateHeapAt.java	2018-06-06 00:36:19.278295216 +0200
@@ -24,6 +24,7 @@
 /* @test TestAllocateHeapAt.java
  * @key gc
  * @summary Test to check allocation of Java Heap with AllocateHeapAt option
+ * @requires vm.gc != "Z"
  * @library /test/lib
  * @modules java.base/jdk.internal.misc
  */