content: /*
   * Copyright (c) 2007, 2009, Oracle and/or its affiliates. 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.  Oracle designates this
   * particular file as subject to the "Classpath" exception as provided
   * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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   */
  
  package java.nio.file.attribute;
  
  import java.security.Principal;
  
  /**
   * A {@code Principal} representing an identity used to determine access rights
   * to objects in a file system.
   *
   * <p> On many platforms and file systems an entity requires appropriate access
   * rights or permissions in order to access objects in a file system. The
   * access rights are generally performed by checking the identity of the entity.
   * For example, on implementations that use Access Control Lists (ACLs) to
   * enforce privilege separation then a file in the file system may have an
   * associated ACL that determines the access rights of identities specified in
   * the ACL.
   *
   * <p> A {@code UserPrincipal} object is an abstract representation of an
   * identity. It has a {@link #getName() name} that is typically the username or
   * account name that it represents. User principal objects may be obtained using
   * a {@link UserPrincipalLookupService}, or returned by {@link
   * FileAttributeView} implementations that provide access to identity related
   * attributes. For example, the {@link AclFileAttributeView} and {@link
   * PosixFileAttributeView} provide access to a file's {@link
   * PosixFileAttributes#owner owner}.
   *
   * @since 1.7
   */
  
  public interface UserPrincipal extends Principal { }
  