--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/agent/src/share/classes/sun/jvm/hotspot/runtime/StackValueCollection.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2001-2003 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.runtime;
+
+import java.util.*;
+
+import sun.jvm.hotspot.debugger.*;
+
+public class StackValueCollection {
+  private List list;
+
+  public StackValueCollection()           { list = new ArrayList(); }
+  public StackValueCollection(int length) { list = new ArrayList(length); }
+
+  public void add(StackValue val) { list.add(val); }
+  public int  size()              { return list.size(); }
+  public boolean isEmpty()        { return (size() == 0); }
+  public StackValue get(int i)    { return (StackValue) list.get(i); }
+
+  // Get typed locals/expressions
+  // FIXME: must figure out whether word swapping is necessary on x86
+  public boolean   booleanAt(int slot)   { return (int)get(slot).getInteger() != 0; }
+  public byte      byteAt(int slot)      { return (byte) get(slot).getInteger(); }
+  public char      charAt(int slot)      { return (char) get(slot).getInteger(); }
+  public short     shortAt(int slot)     { return (short) get(slot).getInteger(); }
+  public int       intAt(int slot)       { return (int) get(slot).getInteger(); }
+  public long      longAt(int slot)      { return VM.getVM().buildLongFromIntsPD((int) get(slot).getInteger(),
+                                                                                 (int) get(slot+1).getInteger()); }
+  public OopHandle oopHandleAt(int slot) { return get(slot).getObject(); }
+  public float     floatAt(int slot)     { return Float.intBitsToFloat(intAt(slot)); }
+  public double    doubleAt(int slot)    { return Double.longBitsToDouble(longAt(slot)); }
+}