1 /*
2  * Copyright (c) 1997, 2011, Oracle and/or its affiliates. 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.  Oracle designates this
8  * particular file as subject to the "Classpath" exception as provided
9  * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22  * or visit www.oracle.com if you need additional information or have any
23  * questions.
24  */
25 
26 package com.sun.xml.internal.bind.v2.runtime.unmarshaller;
27 
28 /**
29  * Class defined for safe calls of getClassLoader methods of any kind (context/system/class
30  * classloader. This MUST be package private and defined in every package which
31  * uses such invocations.
32  * @author snajper
33  */
34 class SecureLoader {
35 
getContextClassLoader()36     static ClassLoader getContextClassLoader() {
37         if (System.getSecurityManager() == null) {
38             return Thread.currentThread().getContextClassLoader();
39         } else {
40             return (ClassLoader) java.security.AccessController.doPrivileged(
41                     new java.security.PrivilegedAction() {
42                         public java.lang.Object run() {
43                             return Thread.currentThread().getContextClassLoader();
44                         }
45                     });
46         }
47     }
48 
49     static ClassLoader getClassClassLoader(final Class c) {
50         if (System.getSecurityManager() == null) {
51             return c.getClassLoader();
52         } else {
53             return (ClassLoader) java.security.AccessController.doPrivileged(
54                     new java.security.PrivilegedAction() {
55                         public java.lang.Object run() {
56                             return c.getClassLoader();
57                         }
58                     });
59         }
60     }
61 
62     static ClassLoader getSystemClassLoader() {
63         if (System.getSecurityManager() == null) {
64             return ClassLoader.getSystemClassLoader();
65         } else {
66             return (ClassLoader) java.security.AccessController.doPrivileged(
67                     new java.security.PrivilegedAction() {
68                         public java.lang.Object run() {
69                             return ClassLoader.getSystemClassLoader();
70                         }
71                     });
72         }
73     }
74 
75 }
76