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/* * Copyright (c) 2000, 2003, 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 * or visit www.oracle.com if you need additional information or have any * questions. */ package com.sun.security.jgss; import javax.security.auth.Subject;import org.ietf.jgss.GSSName;import org.ietf.jgss.GSSCredential; /** * GSS-API Utilities for using in conjunction with Sun Microsystem's * implementation of Java GSS-API. */public class GSSUtil {     /**     * Use this method to convert a GSSName and GSSCredential into a     * Subject. Typically this would be done by a server that wants to     * impersonate a client thread at the Java level by setting a client     * Subject in the current access control context. If the server is merely     * interested in using a principal based policy in its local JVM, then     * it only needs to provide the GSSName of the client.     *     * The elements from the GSSName are placed in the principals set of this     * Subject and those from the GSSCredential are placed in the private     * credentials set of the Subject. Any Kerberos specific elements that     * are added to the subject will be instances of the standard Kerberos     * implementation classes defined in javax.security.auth.kerberos.     *     * @return a Subject with the entries that contain elements from the     * given GSSName and GSSCredential.     *     * @param principals a GSSName containing one or more mechanism specific     * representations of the same entity. These mechanism specific     * representations will be populated in the returned Subject's principal     * set.     *     * @param credentials a GSSCredential containing one or more mechanism     * specific credentials for the same entity. These mechanism specific     * credentials will be populated in the returned Subject's private     * credential set. Passing in a value of null will imply that the private     * credential set should be left empty.     */    public static Subject createSubject(GSSName principals,                                     GSSCredential credentials) {         return  sun.security.jgss.GSSUtil.getSubject(principals,                                                     credentials);    }}