jaxws/src/share/jaxws_classes/com/sun/codemodel/internal/fmt/SecureLoader.java
author mkos
Sun, 30 Dec 2012 00:00:00 +0100
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permissions -rw-r--r--
8029237: Update copyright year to match last edit in jaxws repository for 2012 Reviewed-by: chegar
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/*
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 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.  Oracle designates this
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 * particular file as subject to the "Classpath" exception as provided
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 * by Oracle in the LICENSE file that accompanied this code.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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package com.sun.codemodel.internal.fmt;
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import com.sun.codemodel.internal.*;
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/**
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 * Class defined for safe calls of getClassLoader methods of any kind (context/system/class
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 * classloader. This MUST be package private and defined in every package which
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 * uses such invocations.
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 * @author snajper
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 */
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class SecureLoader {
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    static ClassLoader getContextClassLoader() {
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        if (System.getSecurityManager() == null) {
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            return Thread.currentThread().getContextClassLoader();
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        } else {
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            return (ClassLoader) java.security.AccessController.doPrivileged(
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                    new java.security.PrivilegedAction() {
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                        public java.lang.Object run() {
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                            return Thread.currentThread().getContextClassLoader();
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                        }
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                    });
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        }
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    }
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    static ClassLoader getClassClassLoader(final Class c) {
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        if (System.getSecurityManager() == null) {
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            return c.getClassLoader();
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        } else {
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            return (ClassLoader) java.security.AccessController.doPrivileged(
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                    new java.security.PrivilegedAction() {
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                        public java.lang.Object run() {
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                            return c.getClassLoader();
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                        }
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                    });
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        }
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    }
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    static ClassLoader getSystemClassLoader() {
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        if (System.getSecurityManager() == null) {
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            return ClassLoader.getSystemClassLoader();
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        } else {
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            return (ClassLoader) java.security.AccessController.doPrivileged(
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                    new java.security.PrivilegedAction() {
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                        public java.lang.Object run() {
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                            return ClassLoader.getSystemClassLoader();
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                        }
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                    });
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        }
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    }
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    static void setContextClassLoader(final ClassLoader cl) {
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        if (System.getSecurityManager() == null) {
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            Thread.currentThread().setContextClassLoader(cl);
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        } else {
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            java.security.AccessController.doPrivileged(
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                    new java.security.PrivilegedAction() {
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                        public java.lang.Object run() {
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                            Thread.currentThread().setContextClassLoader(cl);
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                            return null;
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                        }
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                    });
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        }
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    }
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}