| /* |
| * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package com.sun.tools.internal.xjc; |
| |
| import java.net.MalformedURLException; |
| import java.net.URL; |
| import java.net.URLClassLoader; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| |
| import javax.xml.bind.JAXBContext; |
| |
| import com.sun.istack.internal.tools.MaskingClassLoader; |
| import com.sun.istack.internal.tools.ParallelWorldClassLoader; |
| |
| /** |
| * Creates a class loader configured to run XJC 1.0/2.0 safely without |
| * interference with JAXB 2.0 API in Mustang. |
| * |
| * @author Kohsuke Kawaguchi |
| */ |
| class ClassLoaderBuilder { |
| |
| /** |
| * Creates a new class loader that eventually delegates to the given {@link ClassLoader} |
| * such that XJC can be loaded by using this classloader. |
| * |
| * @param v |
| * Either "1.0" or "2.0", indicating the version of the -source value. |
| */ |
| protected static ClassLoader createProtectiveClassLoader(ClassLoader cl, String v) throws ClassNotFoundException, MalformedURLException { |
| if(noHack) return cl; // provide an escape hatch |
| |
| boolean mustang = false; |
| |
| if (SecureLoader.getClassClassLoader(JAXBContext.class) == null) { |
| // JAXB API is loaded from the bootstrap. We need to override one with ours |
| mustang = true; |
| |
| List<String> mask = new ArrayList<String>(Arrays.asList(maskedPackages)); |
| mask.add("javax.xml.bind."); |
| |
| cl = new MaskingClassLoader(cl,mask); |
| |
| URL apiUrl = cl.getResource("javax/xml/bind/JAXBPermission.class"); |
| if(apiUrl==null) |
| throw new ClassNotFoundException("There's no JAXB 2.2 API in the classpath"); |
| |
| cl = new URLClassLoader(new URL[]{ParallelWorldClassLoader.toJarUrl(apiUrl)},cl); |
| } |
| |
| //Leave XJC2 in the publicly visible place |
| // and then isolate XJC1 in a child class loader, |
| // then use a MaskingClassLoader |
| // so that the XJC2 classes in the parent class loader |
| // won't interfere with loading XJC1 classes in a child class loader |
| |
| if ("1.0".equals(v)) { |
| if(!mustang) |
| // if we haven't used Masking ClassLoader, do so now. |
| cl = new MaskingClassLoader(cl,toolPackages); |
| cl = new ParallelWorldClassLoader(cl,"1.0/"); |
| } else { |
| if(mustang) |
| // the whole RI needs to be loaded in a separate class loader |
| cl = new ParallelWorldClassLoader(cl,""); |
| } |
| |
| return cl; |
| } |
| |
| |
| /** |
| * The list of package prefixes we want the |
| * {@link MaskingClassLoader} to prevent the parent |
| * classLoader from loading |
| */ |
| private static String[] maskedPackages = new String[]{ |
| // toolPackages + alpha |
| "com.sun.tools.", |
| "com.sun.codemodel.internal.", |
| "com.sun.relaxng.", |
| "com.sun.xml.internal.xsom.", |
| "com.sun.xml.internal.bind.", |
| }; |
| |
| private static String[] toolPackages = new String[]{ |
| "com.sun.tools.", |
| "com.sun.codemodel.internal.", |
| "com.sun.relaxng.", |
| "com.sun.xml.internal.xsom." |
| }; |
| |
| /** |
| * Escape hatch in case this class loader hack breaks. |
| */ |
| public static final boolean noHack = Boolean.getBoolean(XJCFacade.class.getName()+".nohack"); |
| } |