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 +}
