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

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.

@@ -63,10 +63,12 @@
                   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() {