--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/agent/src/share/classes/sun/jvm/hotspot/oops/Array.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,91 @@
+/*
+ * Copyright 2000-2007 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+package sun.jvm.hotspot.oops;
+
+import java.util.*;
+import sun.jvm.hotspot.debugger.*;
+import sun.jvm.hotspot.memory.*;
+import sun.jvm.hotspot.runtime.*;
+import sun.jvm.hotspot.types.*;
+
+// Array is an abstract superclass for TypeArray and ObjArray
+
+public class Array extends Oop {
+  static {
+    VM.registerVMInitializedObserver(new Observer() {
+        public void update(Observable o, Object data) {
+          initialize(VM.getVM().getTypeDataBase());
+        }
+      });
+  }
+
+  Array(OopHandle handle, ObjectHeap heap) {
+    super(handle, heap);
+  }
+
+  private static void initialize(TypeDataBase db) throws WrongTypeException {
+    Type type   = db.lookupType("arrayOopDesc");
+    length      = new CIntField(type.getCIntegerField("_length"), 0);
+    headerSize  = type.getSize();
+  }
+
+  // Size of the arrayOopDesc
+  private static long headerSize;
+
+  // Fields
+  private static CIntField length;
+
+  // Accessors for declared fields
+  public long getLength() { return length.getValue(this); }
+
+  public long getObjectSize() {
+    ArrayKlass klass = (ArrayKlass) getKlass();
+    // We have to fetch the length of the array, shift (multiply) it
+    // appropriately, up to wordSize, add the header, and align to
+    // object size.
+    long s = getLength() << klass.getLog2ElementSize();
+    s += klass.getArrayHeaderInBytes();
+    s = Oop.alignObjectSize(s);
+    return s;
+  }
+
+  public static long baseOffsetInBytes(BasicType type) {
+    if (Universe.elementTypeShouldBeAligned(type)) {
+      return (VM.getVM().isLP64()) ?  alignObjectSize(headerSize)
+                                   : VM.getVM().alignUp(headerSize, 8);
+    } else {
+      return headerSize;
+    }
+  }
+
+  public boolean isArray()             { return true; }
+
+  public void iterateFields(OopVisitor visitor, boolean doVMFields) {
+    super.iterateFields(visitor, doVMFields);
+    if (doVMFields) {
+      visitor.doCInt(length, true);
+    }
+  }
+}