1 /* 2 * Copyright (c) 1997, 2012, 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.codemodel.internal.fmt; 27 28 import com.sun.codemodel.internal.*; 29 30 /** 31 * Class defined for safe calls of getClassLoader methods of any kind (context/system/class 32 * classloader. This MUST be package private and defined in every package which 33 * uses such invocations. 34 * @author snajper 35 */ 36 class SecureLoader { 37 38 static ClassLoader getContextClassLoader() { 39 if (System.getSecurityManager() == null) { 40 return Thread.currentThread().getContextClassLoader(); 41 } else { 42 return (ClassLoader) java.security.AccessController.doPrivileged( 43 new java.security.PrivilegedAction() { 44 public java.lang.Object run() { 45 return Thread.currentThread().getContextClassLoader(); 46 } 47 }); 48 } 49 } 50 51 static ClassLoader getClassClassLoader(final Class c) { 52 if (System.getSecurityManager() == null) { 53 return c.getClassLoader(); 54 } else { 55 return (ClassLoader) java.security.AccessController.doPrivileged( 56 new java.security.PrivilegedAction() { 57 public java.lang.Object run() { 58 return c.getClassLoader(); 59 } 60 }); 61 } 62 } 63 64 static ClassLoader getSystemClassLoader() { 65 if (System.getSecurityManager() == null) { 66 return ClassLoader.getSystemClassLoader(); 67 } else { 68 return (ClassLoader) java.security.AccessController.doPrivileged( 69 new java.security.PrivilegedAction() { 70 public java.lang.Object run() { 71 return ClassLoader.getSystemClassLoader(); 72 } 73 }); 74 } 75 } 76 77 static void setContextClassLoader(final ClassLoader cl) { 78 if (System.getSecurityManager() == null) { 79 Thread.currentThread().setContextClassLoader(cl); 80 } else { 81 java.security.AccessController.doPrivileged( 82 new java.security.PrivilegedAction() { 83 public java.lang.Object run() { 84 Thread.currentThread().setContextClassLoader(cl); 85 return null; 86 } 87 }); 88 } 89 } 90 91 }