1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/src/share/jaxws_classes/com/sun/tools/internal/xjc/ClassLoaderBuilder.java Wed Apr 27 01:27:09 2016 +0800 1.3 @@ -0,0 +1,122 @@ 1.4 +/* 1.5 + * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. 1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 1.7 + * 1.8 + * This code is free software; you can redistribute it and/or modify it 1.9 + * under the terms of the GNU General Public License version 2 only, as 1.10 + * published by the Free Software Foundation. Oracle designates this 1.11 + * particular file as subject to the "Classpath" exception as provided 1.12 + * by Oracle in the LICENSE file that accompanied this code. 1.13 + * 1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT 1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 1.16 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 1.17 + * version 2 for more details (a copy is included in the LICENSE file that 1.18 + * accompanied this code). 1.19 + * 1.20 + * You should have received a copy of the GNU General Public License version 1.21 + * 2 along with this work; if not, write to the Free Software Foundation, 1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 1.23 + * 1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 1.25 + * or visit www.oracle.com if you need additional information or have any 1.26 + * questions. 1.27 + */ 1.28 + 1.29 +package com.sun.tools.internal.xjc; 1.30 + 1.31 +import java.net.MalformedURLException; 1.32 +import java.net.URL; 1.33 +import java.net.URLClassLoader; 1.34 +import java.util.ArrayList; 1.35 +import java.util.Arrays; 1.36 +import java.util.List; 1.37 + 1.38 +import javax.xml.bind.JAXBContext; 1.39 + 1.40 +import com.sun.istack.internal.tools.MaskingClassLoader; 1.41 +import com.sun.istack.internal.tools.ParallelWorldClassLoader; 1.42 + 1.43 +/** 1.44 + * Creates a class loader configured to run XJC 1.0/2.0 safely without 1.45 + * interference with JAXB 2.0 API in Mustang. 1.46 + * 1.47 + * @author Kohsuke Kawaguchi 1.48 + */ 1.49 +class ClassLoaderBuilder { 1.50 + 1.51 + /** 1.52 + * Creates a new class loader that eventually delegates to the given {@link ClassLoader} 1.53 + * such that XJC can be loaded by using this classloader. 1.54 + * 1.55 + * @param v 1.56 + * Either "1.0" or "2.0", indicating the version of the -source value. 1.57 + */ 1.58 + protected static ClassLoader createProtectiveClassLoader(ClassLoader cl, String v) throws ClassNotFoundException, MalformedURLException { 1.59 + if(noHack) return cl; // provide an escape hatch 1.60 + 1.61 + boolean mustang = false; 1.62 + 1.63 + if (SecureLoader.getClassClassLoader(JAXBContext.class) == null) { 1.64 + // JAXB API is loaded from the bootstrap. We need to override one with ours 1.65 + mustang = true; 1.66 + 1.67 + List<String> mask = new ArrayList<String>(Arrays.asList(maskedPackages)); 1.68 + mask.add("javax.xml.bind."); 1.69 + 1.70 + cl = new MaskingClassLoader(cl,mask); 1.71 + 1.72 + URL apiUrl = cl.getResource("javax/xml/bind/JAXBPermission.class"); 1.73 + if(apiUrl==null) 1.74 + throw new ClassNotFoundException("There's no JAXB 2.2 API in the classpath"); 1.75 + 1.76 + cl = new URLClassLoader(new URL[]{ParallelWorldClassLoader.toJarUrl(apiUrl)},cl); 1.77 + } 1.78 + 1.79 + //Leave XJC2 in the publicly visible place 1.80 + // and then isolate XJC1 in a child class loader, 1.81 + // then use a MaskingClassLoader 1.82 + // so that the XJC2 classes in the parent class loader 1.83 + // won't interfere with loading XJC1 classes in a child class loader 1.84 + 1.85 + if ("1.0".equals(v)) { 1.86 + if(!mustang) 1.87 + // if we haven't used Masking ClassLoader, do so now. 1.88 + cl = new MaskingClassLoader(cl,toolPackages); 1.89 + cl = new ParallelWorldClassLoader(cl,"1.0/"); 1.90 + } else { 1.91 + if(mustang) 1.92 + // the whole RI needs to be loaded in a separate class loader 1.93 + cl = new ParallelWorldClassLoader(cl,""); 1.94 + } 1.95 + 1.96 + return cl; 1.97 + } 1.98 + 1.99 + 1.100 + /** 1.101 + * The list of package prefixes we want the 1.102 + * {@link MaskingClassLoader} to prevent the parent 1.103 + * classLoader from loading 1.104 + */ 1.105 + private static String[] maskedPackages = new String[]{ 1.106 + // toolPackages + alpha 1.107 + "com.sun.tools.", 1.108 + "com.sun.codemodel.internal.", 1.109 + "com.sun.relaxng.", 1.110 + "com.sun.xml.internal.xsom.", 1.111 + "com.sun.xml.internal.bind.", 1.112 + }; 1.113 + 1.114 + private static String[] toolPackages = new String[]{ 1.115 + "com.sun.tools.", 1.116 + "com.sun.codemodel.internal.", 1.117 + "com.sun.relaxng.", 1.118 + "com.sun.xml.internal.xsom." 1.119 + }; 1.120 + 1.121 + /** 1.122 + * Escape hatch in case this class loader hack breaks. 1.123 + */ 1.124 + public static final boolean noHack = Boolean.getBoolean(XJCFacade.class.getName()+".nohack"); 1.125 +}