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diff --git a/libjava/java/security/acl/Owner.java b/libjava/java/security/acl/Owner.java
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+/* Owner.java -- ACL owner
+   Copyright (C) 1998 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 USA.
+
+As a special exception, if you link this library with other files to
+produce an executable, this library does not by itself cause the
+resulting executable to be covered by the GNU General Public License.
+This exception does not however invalidate any other reasons why the
+executable file might be covered by the GNU General Public License. */
+
+package java.security.acl;
+
+import java.security.Principal;
+
+/**
+ * This interface provides a mechanism for maintaining a list of owners
+ * of an access control list (ACL).  Since a <code>Principal</code> must
+ * be an owner in order to modify the owner list, a mechanism must be
+ * provided to specify the initial owner of the ACL.  The proper way to do
+ * this is for the implementing class to specify the initial owner in
+ * the contructor for that class.
+ *
+ * @version 0.0
+ *
+ * @author Aaron M. Renn (arenn@urbanophile.com)
+ */
+public interface Owner
+{
+  /**
+   * This method adds an owner to the access control list (ACL).  Only a
+   * <code>Principal</code> who is already an owner can perform this operation.
+   *
+   * @param caller The <code>Principal</code> who is requesting that an owner be added
+   * @param owner The <code>Principal</code> to add as a new owner
+   *
+   * @param <code>true</code> if the new owner was successfully added or <code>false</code> if the specified new owner is already an owner
+   *
+   * @exception NotOwnerException If the caller is not already an owner of this ACL
+   */
+  public abstract boolean addOwner(Principal caller, Principal owner) 
+    throws NotOwnerException;
+
+  /**
+   * This method delets an owner from the access control list (ACL).  Only a
+   * <code>Principal</code> who is an owner can perform this operation.  An
+   * owner can delete itself from the list.  If there is only one
+   * owner remaining on this list, any attempt to delete it will throw an
+   * exception.
+   *
+   * @param caller The <code>Principal</code> who is requesting that an owner be deleted
+   * @param owner The <code>Principal</code> to delete as an owner
+   *
+   * @param <code>true</code> if the new owner was successfully deleted or <code>false</code> if the specified owner is not currently an owner
+   *
+   * @exception NotOwnerException If the caller is not already an owner of this ACL
+   * @exception LastOwnerException If completing the operation would delete the last ACL owner
+   */
+  public abstract boolean deleteOwner(Principal caller, Principal owner) 
+    throws NotOwnerException, LastOwnerException;
+
+  /**
+   * This method tests whether or not a given <code>Principal</code> is an
+   * owner of this access control list (ACL).
+   *
+   * @return <code>true</code> if the <code>Principal</code> is an owner, <code>false</code> otherwise
+   */
+  public abstract boolean isOwner(Principal owner);
+}