Kelly O'Hair | bc113af | 2012-03-06 16:09:35 -0800 | [diff] [blame] | 1 | /* |
Miroslav Kos | 9224d25 | 2012-12-30 00:00:00 +0100 | [diff] [blame] | 2 | * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
Kelly O'Hair | bc113af | 2012-03-06 16:09:35 -0800 | [diff] [blame] | 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.codemodel.internal; |
| 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 | |
| 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 | static void setContextClassLoader(final ClassLoader cl) { |
| 76 | if (System.getSecurityManager() == null) { |
| 77 | Thread.currentThread().setContextClassLoader(cl); |
| 78 | } else { |
| 79 | java.security.AccessController.doPrivileged( |
| 80 | new java.security.PrivilegedAction() { |
| 81 | public java.lang.Object run() { |
| 82 | Thread.currentThread().setContextClassLoader(cl); |
| 83 | return null; |
| 84 | } |
| 85 | }); |
| 86 | } |
| 87 | } |
| 88 | |
| 89 | } |