--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/com/sun/security/auth/NTSidDomainPrincipal.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,108 @@
+/*
+ * Copyright 1999-2003 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.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * 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 com.sun.security.auth;
+
+/**
+ * <p> This class extends <code>NTSid</code>
+ * and represents a Windows NT user's domain SID.
+ *
+ * <p> An NT user only has a domain SID if in fact they are logged
+ * into an NT domain.  If the user is logged into a workgroup or
+ * just a standalone configuration, they will NOT have a domain SID.
+ *
+ * <p> Principals such as this <code>NTSidDomainPrincipal</code>
+ * may be associated with a particular <code>Subject</code>
+ * to augment that <code>Subject</code> with an additional
+ * identity.  Refer to the <code>Subject</code> class for more information
+ * on how to achieve this.  Authorization decisions can then be based upon
+ * the Principals associated with a <code>Subject</code>.
+ *
+ * @see java.security.Principal
+ * @see javax.security.auth.Subject
+ */
+public class NTSidDomainPrincipal extends NTSid {
+
+    private static final long serialVersionUID = 5247810785821650912L;
+
+    /**
+     * Create an <code>NTSidDomainPrincipal</code> with a Windows NT SID.
+     *
+     * <p>
+     *
+     * @param name a string version of the Windows NT SID for this
+     *                  user's domain.<p>
+     *
+     * @exception NullPointerException if the <code>name</code>
+     *                  is <code>null</code>.
+     */
+    public NTSidDomainPrincipal(String name) {
+        super(name);
+    }
+
+    /**
+     * Return a string representation of this <code>NTSidDomainPrincipal</code>.
+     *
+     * <p>
+     *
+     * @return a string representation of this
+     *          <code>NTSidDomainPrincipal</code>.
+     */
+    public String toString() {
+        java.text.MessageFormat form = new java.text.MessageFormat
+                (sun.security.util.ResourcesMgr.getString
+                        ("NTSidDomainPrincipal: name",
+                        "sun.security.util.AuthResources"));
+        Object[] source = {getName()};
+        return form.format(source);
+    }
+
+    /**
+     * Compares the specified Object with this <code>NTSidDomainPrincipal</code>
+     * for equality.  Returns true if the given object is also a
+     * <code>NTSidDomainPrincipal</code> and the two NTSidDomainPrincipals
+     * have the same SID.
+     *
+     * <p>
+     *
+     * @param o Object to be compared for equality with this
+     *          <code>NTSidDomainPrincipal</code>.
+     *
+     * @return true if the specified Object is equal equal to this
+     *          <code>NTSidDomainPrincipal</code>.
+     */
+    public boolean equals(Object o) {
+            if (o == null)
+                return false;
+
+        if (this == o)
+            return true;
+
+        if (!(o instanceof NTSidDomainPrincipal))
+            return false;
+
+        return super.equals(o);
+    }
+}