1 /*

     2  * Copyright 1999 Sun Microsystems, Inc.  All Rights Reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Sun designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Sun in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    22  * CA 95054 USA or visit www.sun.com if you need additional information or

    23  * have any questions.

    24  */

    25 

    26 package com.sun.jndi.ldap;

    27 

    28 import java.net.URL;

    29 import java.net.URLClassLoader;

    30 import java.net.MalformedURLException;

    31 import java.security.AccessController;

    32 import java.security.PrivilegedAction;

    33 

    34 final class VersionHelper12 extends VersionHelper {

    35 

    36     VersionHelper12() {} // Disallow external from creating one of these.

    37 

    38     ClassLoader getURLClassLoader(String[] url)

    39         throws MalformedURLException {

    40             ClassLoader parent = getContextClassLoader();

    41             if (url != null) {

    42                 return URLClassLoader.newInstance(getUrlArray(url), parent);

    43             } else {

    44                 return parent;

    45             }

    46     }

    47 

    48     Class loadClass(String className) throws ClassNotFoundException {

    49         ClassLoader cl = getContextClassLoader();

    50         return Class.forName(className, true, cl);

    51     }

    52 

    53     private ClassLoader getContextClassLoader() {

    54         return (ClassLoader) AccessController.doPrivileged(

    55             new PrivilegedAction() {

    56                 public Object run() {

    57                     return Thread.currentThread().getContextClassLoader();

    58                 }

    59             }

    60         );

    61     }

    62 

    63     Thread createThread(final Runnable r) {

    64         return (Thread) AccessController.doPrivileged(

    65             new PrivilegedAction() {

    66                 public Object run() {

    67                     return new Thread(r);

    68                 }

    69             }

    70         );

    71     }

    72 }