src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/gc/shared/GCName.java

@@ -35,10 +35,12 @@
   ParNew ("ParNew"),
   G1New ("G1New"),
   ConcurrentMarkSweep ("ConcurrentMarkSweep"),
   G1Old ("G1Old"),
   G1Full ("G1Full"),
+  Z ("Z"),
+  NA ("N/A"),
   GCNameEndSentinel ("GCNameEndSentinel");
 
   private final String value;
 
   GCName(String val) {

@@ -46,6 +48,5 @@
   }
   public String value() {
     return value;
   }
 }
-