1/* 2 * Copyright (c) 1997, 2013, 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 26package com.sun.tools.internal.xjc; 27 28import java.io.Closeable; 29import java.lang.reflect.InvocationTargetException; 30import java.lang.reflect.Method; 31import java.net.URLClassLoader; 32 33/** 34 * A shabby driver to invoke XJC1 or XJC2 depending on the command line switch. 35 * 36 * <p> 37 * This class is compiled with -source 1.2 so that we can report a nice 38 * user-friendly "you require Tiger" error message. 39 * 40 * @author Kohsuke Kawaguchi 41 */ 42public class XJCFacade { 43 44 private static final String JDK6_REQUIRED = "XJC requires JDK 6.0 or later. Please download it from http://www.oracle.com/technetwork/java/javase/downloads"; 45 46 public static void main(String[] args) throws Throwable { 47 String v = "2.0"; // by default, we go 2.0 48 49 for (int i = 0; i < args.length; i++) { 50 if (args[i].equals("-source")) { 51 if (i + 1 < args.length) { 52 v = parseVersion(args[i + 1]); 53 } 54 } 55 } 56 57 ClassLoader oldContextCl = SecureLoader.getContextClassLoader(); 58 try { 59 ClassLoader cl = ClassLoaderBuilder.createProtectiveClassLoader(SecureLoader.getClassClassLoader(XJCFacade.class), v); 60 SecureLoader.setContextClassLoader(cl); 61 Class<?> driver = cl.loadClass("com.sun.tools.internal.xjc.Driver"); 62 Method mainMethod = driver.getDeclaredMethod("main", new Class[]{String[].class}); 63 try { 64 mainMethod.invoke(null, new Object[]{args}); 65 } catch (InvocationTargetException e) { 66 if (e.getTargetException() != null) { 67 throw e.getTargetException(); 68 } 69 } 70 } catch (UnsupportedClassVersionError e) { 71 System.err.println(JDK6_REQUIRED); 72 } finally { 73 ClassLoader cl = SecureLoader.getContextClassLoader(); 74 SecureLoader.setContextClassLoader(oldContextCl); 75 76 //close/cleanup all classLoaders but the one which loaded this class 77 while (cl != null && !oldContextCl.equals(cl)) { 78 if (cl instanceof Closeable) { 79 //JDK7+, ParallelWorldClassLoader 80 ((Closeable) cl).close(); 81 } else { 82 if (cl instanceof URLClassLoader) { 83 //JDK6 - API jars are loaded by instance of URLClassLoader 84 //so use proprietary API to release holded resources 85 try { 86 Class<?> clUtil = oldContextCl.loadClass("sun.misc.ClassLoaderUtil"); 87 Method release = clUtil.getDeclaredMethod("releaseLoader", URLClassLoader.class); 88 release.invoke(null, cl); 89 } catch (ClassNotFoundException ex) { 90 //not Sun JDK 6, ignore 91 System.err.println(JDK6_REQUIRED); 92 } 93 } 94 } 95 cl = SecureLoader.getParentClassLoader(cl); 96 } 97 } 98 } 99 100 public static String parseVersion(String version) { 101 // no other versions supported as of now 102 return "2.0"; 103 } 104} 105