--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/oops/ConstantPoolCache.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,100 @@
+/*
+ * Copyright 2000-2005 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.io.*;
+import java.util.*;
+import sun.jvm.hotspot.debugger.*;
+import sun.jvm.hotspot.runtime.*;
+import sun.jvm.hotspot.types.*;
+import sun.jvm.hotspot.utilities.*;
+
+// A ConstantPool is an array containing class constants
+// as described in the class file
+
+public class ConstantPoolCache extends Array {
+  static {
+    VM.registerVMInitializedObserver(new Observer() {
+        public void update(Observable o, Object data) {
+          initialize(VM.getVM().getTypeDataBase());
+        }
+      });
+  }
+
+  private static synchronized void initialize(TypeDataBase db) throws WrongTypeException {
+    Type type      = db.lookupType("constantPoolCacheOopDesc");
+    constants      = new OopField(type.getOopField("_constant_pool"), 0);
+    baseOffset     = type.getSize();
+
+    Type elType    = db.lookupType("ConstantPoolCacheEntry");
+    elementSize    = elType.getSize();
+  }
+
+  ConstantPoolCache(OopHandle handle, ObjectHeap heap) {
+    super(handle, heap);
+  }
+
+  public boolean isConstantPoolCache() { return true; }
+
+  private static OopField constants;
+
+  private static long baseOffset;
+  private static long elementSize;
+
+  public ConstantPool getConstants() { return (ConstantPool) constants.getValue(this); }
+
+  public long getObjectSize() {
+    return alignObjectSize(baseOffset + getLength() * elementSize);
+  }
+
+  public ConstantPoolCacheEntry getEntryAt(int i) {
+    if (Assert.ASSERTS_ENABLED) {
+      Assert.that(0 <= i && i < getLength(), "index out of bounds");
+    }
+    return new ConstantPoolCacheEntry(this, i);
+  }
+
+  public int getIntAt(int entry, int fld) {
+    //alignObjectSize ?
+    long offset = baseOffset + /*alignObjectSize*/entry * elementSize + fld* getHeap().getIntSize();
+    return (int) getHandle().getCIntegerAt(offset, getHeap().getIntSize(), true );
+  }
+
+
+  public void printValueOn(PrintStream tty) {
+    tty.print("ConstantPoolCache for " + getConstants().getPoolHolder().getName().asString());
+  }
+
+  public void iterateFields(OopVisitor visitor, boolean doVMFields) {
+    super.iterateFields(visitor, doVMFields);
+    if (doVMFields) {
+      visitor.doOop(constants, true);
+      for (int i = 0; i < getLength(); i++) {
+        ConstantPoolCacheEntry entry = getEntryAt(i);
+        entry.iterateFields(visitor);
+      }
+    }
+  }
+};