--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/agent/src/share/classes/sun/jvm/hotspot/memory/DictionaryEntry.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,112 @@
+/*
+ * Copyright 2003-2005 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.memory;
+
+import java.util.*;
+import sun.jvm.hotspot.debugger.*;
+import sun.jvm.hotspot.oops.*;
+import sun.jvm.hotspot.types.*;
+import sun.jvm.hotspot.runtime.*;
+import sun.jvm.hotspot.utilities.*;
+
+public class DictionaryEntry extends sun.jvm.hotspot.utilities.HashtableEntry {
+  static {
+    VM.registerVMInitializedObserver(new Observer() {
+        public void update(Observable o, Object data) {
+          initialize(VM.getVM().getTypeDataBase());
+        }
+      });
+  }
+
+  private static synchronized void initialize(TypeDataBase db) {
+    Type type = db.lookupType("DictionaryEntry");
+    pdSetField = type.getAddressField("_pd_set");
+    loaderField = type.getOopField("_loader");
+  }
+
+  // Fields
+  private static AddressField pdSetField;
+  private static sun.jvm.hotspot.types.OopField loaderField;
+
+  // Accessors
+
+  public ProtectionDomainEntry pdSet() {
+    Address tmp = pdSetField.getValue(addr);
+    return (ProtectionDomainEntry) VMObjectFactory.newObject(
+                          ProtectionDomainEntry.class, tmp);
+  }
+
+  public Oop loader() {
+    return VM.getVM().getObjectHeap().newOop(loaderField.getValue(addr));
+  }
+
+  public Klass klass() {
+    return (Klass) literal();
+  }
+
+  public DictionaryEntry(Address addr) {
+    super(addr);
+  }
+
+  public boolean equals(Symbol className, Oop classLoader) {
+    InstanceKlass ik = (InstanceKlass) klass();
+    Oop loader = loader();
+    if (! ik.getName().equals(className)) {
+      return false;
+    } else {
+      return (loader == null)? (classLoader == null) :
+                               (loader.equals(classLoader));
+    }
+  }
+
+  public boolean isValidProtectionDomain(Oop protectionDomain) {
+    if (protectionDomain == null) {
+      return true;
+    } else {
+      return containsProtectionDomain(protectionDomain);
+    }
+  }
+
+  public boolean containsProtectionDomain(Oop protectionDomain) {
+    InstanceKlass ik = (InstanceKlass) klass();
+    if (protectionDomain.equals(ik.getProtectionDomain())) {
+      return true; // Succeeds trivially
+    }
+    for (ProtectionDomainEntry current = pdSet(); current != null;
+                                       current = current.next()) {
+      if (protectionDomain.equals(current.protectionDomain())) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  /* covariant return type :-(
+  public DictionaryEntry next() {
+    return (DictionaryEntry) super.next();
+  }
+  For now, let the caller cast it ..
+  */
+}