Mercurial > jdk8-mips64-public > jaxws / file comparison
comparison: src/share/jaxws_classes/com/sun/tools/internal/xjc/ClassLoaderBuilder.java
src/share/jaxws_classes/com/sun/tools/internal/xjc/ClassLoaderBuilder.java
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| 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.tools.internal.xjc; | |
| 27 | |
| 28 import java.net.MalformedURLException; | |
| 29 import java.net.URL; | |
| 30 import java.net.URLClassLoader; | |
| 31 import java.util.ArrayList; | |
| 32 import java.util.Arrays; | |
| 33 import java.util.List; | |
| 34 | |
| 35 import javax.xml.bind.JAXBContext; | |
| 36 | |
| 37 import com.sun.istack.internal.tools.MaskingClassLoader; | |
| 38 import com.sun.istack.internal.tools.ParallelWorldClassLoader; | |
| 39 | |
| 40 /** | |
| 41 * Creates a class loader configured to run XJC 1.0/2.0 safely without | |
| 42 * interference with JAXB 2.0 API in Mustang. | |
| 43 * | |
| 44 * @author Kohsuke Kawaguchi | |
| 45 */ | |
| 46 class ClassLoaderBuilder { | |
| 47 | |
| 48 /** | |
| 49 * Creates a new class loader that eventually delegates to the given {@link ClassLoader} | |
| 50 * such that XJC can be loaded by using this classloader. | |
| 51 * | |
| 52 * @param v | |
| 53 * Either "1.0" or "2.0", indicating the version of the -source value. | |
| 54 */ | |
| 55 protected static ClassLoader createProtectiveClassLoader(ClassLoader cl, String v) throws ClassNotFoundException, MalformedURLException { | |
| 56 if(noHack) return cl; // provide an escape hatch | |
| 57 | |
| 58 boolean mustang = false; | |
| 59 | |
| 60 if (SecureLoader.getClassClassLoader(JAXBContext.class) == null) { | |
| 61 // JAXB API is loaded from the bootstrap. We need to override one with ours | |
| 62 mustang = true; | |
| 63 | |
| 64 List<String> mask = new ArrayList<String>(Arrays.asList(maskedPackages)); | |
| 65 mask.add("javax.xml.bind."); | |
| 66 | |
| 67 cl = new MaskingClassLoader(cl,mask); | |
| 68 | |
| 69 URL apiUrl = cl.getResource("javax/xml/bind/JAXBPermission.class"); | |
| 70 if(apiUrl==null) | |
| 71 throw new ClassNotFoundException("There's no JAXB 2.2 API in the classpath"); | |
| 72 | |
| 73 cl = new URLClassLoader(new URL[]{ParallelWorldClassLoader.toJarUrl(apiUrl)},cl); | |
| 74 } | |
| 75 | |
| 76 //Leave XJC2 in the publicly visible place | |
| 77 // and then isolate XJC1 in a child class loader, | |
| 78 // then use a MaskingClassLoader | |
| 79 // so that the XJC2 classes in the parent class loader | |
| 80 // won't interfere with loading XJC1 classes in a child class loader | |
| 81 | |
| 82 if ("1.0".equals(v)) { | |
| 83 if(!mustang) | |
| 84 // if we haven't used Masking ClassLoader, do so now. | |
| 85 cl = new MaskingClassLoader(cl,toolPackages); | |
| 86 cl = new ParallelWorldClassLoader(cl,"1.0/"); | |
| 87 } else { | |
| 88 if(mustang) | |
| 89 // the whole RI needs to be loaded in a separate class loader | |
| 90 cl = new ParallelWorldClassLoader(cl,""); | |
| 91 } | |
| 92 | |
| 93 return cl; | |
| 94 } | |
| 95 | |
| 96 | |
| 97 /** | |
| 98 * The list of package prefixes we want the | |
| 99 * {@link MaskingClassLoader} to prevent the parent | |
| 100 * classLoader from loading | |
| 101 */ | |
| 102 private static String[] maskedPackages = new String[]{ | |
| 103 // toolPackages + alpha | |
| 104 "com.sun.tools.", | |
| 105 "com.sun.codemodel.internal.", | |
| 106 "com.sun.relaxng.", | |
| 107 "com.sun.xml.internal.xsom.", | |
| 108 "com.sun.xml.internal.bind.", | |
| 109 }; | |
| 110 | |
| 111 private static String[] toolPackages = new String[]{ | |
| 112 "com.sun.tools.", | |
| 113 "com.sun.codemodel.internal.", | |
| 114 "com.sun.relaxng.", | |
| 115 "com.sun.xml.internal.xsom." | |
| 116 }; | |
| 117 | |
| 118 /** | |
| 119 * Escape hatch in case this class loader hack breaks. | |
| 120 */ | |
| 121 public static final boolean noHack = Boolean.getBoolean(XJCFacade.class.getName()+".nohack"); | |
| 122 } |
