--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/agent/src/share/classes/sun/jvm/hotspot/gc_implementation/g1/G1MonitoringSupport.java	Mon Oct 03 19:04:14 2011 -0400
@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2011, 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.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+package sun.jvm.hotspot.gc_implementation.g1;
+
+import java.util.Observable;
+import java.util.Observer;
+
+import sun.jvm.hotspot.debugger.Address;
+import sun.jvm.hotspot.runtime.VM;
+import sun.jvm.hotspot.runtime.VMObject;
+import sun.jvm.hotspot.types.CIntegerField;
+import sun.jvm.hotspot.types.Type;
+import sun.jvm.hotspot.types.TypeDataBase;
+
+// Mirror class for G1MonitoringSupport.
+
+public class G1MonitoringSupport extends VMObject {
+    // size_t _eden_committed;
+    static private CIntegerField edenCommittedField;
+    // size_t _eden_used;
+    static private CIntegerField edenUsedField;
+    // size_t _survivor_committed;
+    static private CIntegerField survivorCommittedField;
+    // size_t _survivor_used;
+    static private CIntegerField survivorUsedField;
+    // size_t _old_committed;
+    static private CIntegerField oldCommittedField;
+    // size_t _old_used;
+    static private CIntegerField oldUsedField;
+
+    static {
+        VM.registerVMInitializedObserver(new Observer() {
+                public void update(Observable o, Object data) {
+                    initialize(VM.getVM().getTypeDataBase());
+                }
+            });
+    }
+
+    static private synchronized void initialize(TypeDataBase db) {
+        Type type = db.lookupType("G1MonitoringSupport");
+
+        edenCommittedField = type.getCIntegerField("_eden_committed");
+        edenUsedField = type.getCIntegerField("_eden_used");
+        survivorCommittedField = type.getCIntegerField("_survivor_committed");
+        survivorUsedField = type.getCIntegerField("_survivor_used");
+        oldCommittedField = type.getCIntegerField("_old_committed");
+        oldUsedField = type.getCIntegerField("_old_used");
+    }
+
+    public long edenCommitted() {
+        return edenCommittedField.getValue(addr);
+    }
+
+    public long edenUsed() {
+        return edenUsedField.getValue(addr);
+    }
+
+    public long survivorCommitted() {
+        return survivorCommittedField.getValue(addr);
+    }
+
+    public long survivorUsed() {
+        return survivorUsedField.getValue(addr);
+    }
+
+    public long oldCommitted() {
+        return oldCommittedField.getValue(addr);
+    }
+
+    public long oldUsed() {
+        return oldUsedField.getValue(addr);
+    }
+
+    public G1MonitoringSupport(Address addr) {
+        super(addr);
+    }
+}