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

*** 63,72 ****
--- 63,74 ----
                    public String name() {
                        return "unknown generation type";
                    }
                    public void spaceIterate(SpaceClosure blk, boolean usedOnly) {
                    }
+                   public void liveRegionsIterate(LiveRegionsClosure closure) {
+                   }
                    public void printOn(java.io.PrintStream tty) {
                        tty.println("unknown subtype of Generation @ " + getAddress() + " (" +
                                    virtualSpace().low() + "," + virtualSpace().high() + ")");
                    }
                    public long used() {