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src/share/jaxws_classes/com/sun/xml/internal/ws/model/Injector.java@373ffda63c9a (annotated)

src/share/jaxws_classes/com/sun/xml/internal/ws/model/Injector.java

Wed, 27 Apr 2016 01:27:09 +0800

author

aoqi

date

Wed, 27 Apr 2016 01:27:09 +0800

changeset 0

373ffda63c9a

child 637

9c07ef4934dd

permissions

-rw-r--r--

Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/jaxws/
changeset: 657:d47a47f961ee
tag: jdk8u25-b17

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2008, 2012, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation. Oracle designates this
aoqi@0	8	* particular file as subject to the "Classpath" exception as provided
aoqi@0	9	* by Oracle in the LICENSE file that accompanied this code.
aoqi@0	10	*
aoqi@0	11	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	12	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	13	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	14	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	15	* accompanied this code).
aoqi@0	16	*
aoqi@0	17	* You should have received a copy of the GNU General Public License version
aoqi@0	18	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	19	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	20	*
aoqi@0	21	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	22	* or visit www.oracle.com if you need additional information or have any
aoqi@0	23	* questions.
aoqi@0	24	*/
aoqi@0	25
aoqi@0	26	package com.sun.xml.internal.ws.model;
aoqi@0	27
aoqi@0	28	import javax.xml.ws.WebServiceException;
aoqi@0	29	import java.lang.reflect.InvocationTargetException;
aoqi@0	30	import java.lang.reflect.Method;
aoqi@0	31	import java.net.URL;
aoqi@0	32	import java.security.AccessController;
aoqi@0	33	import java.security.PrivilegedAction;
aoqi@0	34	import java.util.logging.Level;
aoqi@0	35	import java.util.logging.Logger;
aoqi@0	36
aoqi@0	37	/**
aoqi@0	38	* A {@link ClassLoader} used to "inject" wrapper and exception bean classes
aoqi@0	39	* into the VM.
aoqi@0	40	*
aoqi@0	41	* @author Jitendra kotamraju
aoqi@0	42	*/
aoqi@0	43	final class Injector {
aoqi@0	44
aoqi@0	45	private static final Logger LOGGER = Logger.getLogger(Injector.class.getName());
aoqi@0	46
aoqi@0	47	private static final Method defineClass;
aoqi@0	48	private static final Method resolveClass;
aoqi@0	49	private static final Method getPackage;
aoqi@0	50	private static final Method definePackage;
aoqi@0	51
aoqi@0	52	static {
aoqi@0	53	try {
aoqi@0	54	defineClass = ClassLoader.class.getDeclaredMethod("defineClass",String.class,byte[].class,Integer.TYPE,Integer.TYPE);
aoqi@0	55	resolveClass = ClassLoader.class.getDeclaredMethod("resolveClass",Class.class);
aoqi@0	56	getPackage = ClassLoader.class.getDeclaredMethod("getPackage", String.class);
aoqi@0	57	definePackage = ClassLoader.class.getDeclaredMethod("definePackage",
aoqi@0	58	String.class, String.class, String.class, String.class,
aoqi@0	59	String.class, String.class, String.class, URL.class);
aoqi@0	60	} catch (NoSuchMethodException e) {
aoqi@0	61	// impossible
aoqi@0	62	throw new NoSuchMethodError(e.getMessage());
aoqi@0	63	}
aoqi@0	64	AccessController.doPrivileged(new PrivilegedAction<Void>() {
aoqi@0	65	public Void run() {
aoqi@0	66	// TODO: check security implication
aoqi@0	67	// do these setAccessible allow anyone to call these methods freely?s
aoqi@0	68	defineClass.setAccessible(true);
aoqi@0	69	resolveClass.setAccessible(true);
aoqi@0	70	getPackage.setAccessible(true);
aoqi@0	71	definePackage.setAccessible(true);
aoqi@0	72	return null;
aoqi@0	73	}
aoqi@0	74	});
aoqi@0	75	}
aoqi@0	76
aoqi@0	77	static synchronized Class inject(ClassLoader cl, String className, byte[] image) {
aoqi@0	78	// To avoid race conditions let us check if the classloader
aoqi@0	79	// already contains the class
aoqi@0	80	try {
aoqi@0	81	return cl.loadClass(className);
aoqi@0	82	} catch (ClassNotFoundException e) {
aoqi@0	83	// nothing to do
aoqi@0	84	}
aoqi@0	85	try {
aoqi@0	86	int packIndex = className.lastIndexOf('.');
aoqi@0	87	if (packIndex != -1) {
aoqi@0	88	String pkgname = className.substring(0, packIndex);
aoqi@0	89	// Check if package already loaded.
aoqi@0	90	Package pkg = (Package)getPackage.invoke(cl, pkgname);
aoqi@0	91	if (pkg == null) {
aoqi@0	92	definePackage.invoke(cl, pkgname, null, null, null, null, null, null, null);
aoqi@0	93	}
aoqi@0	94	}
aoqi@0	95
aoqi@0	96	Class c = (Class)defineClass.invoke(cl,className.replace('/','.'),image,0,image.length);
aoqi@0	97	resolveClass.invoke(cl, c);
aoqi@0	98	return c;
aoqi@0	99	} catch (IllegalAccessException e) {
aoqi@0	100	LOGGER.log(Level.FINE,"Unable to inject "+className,e);
aoqi@0	101	throw new WebServiceException(e);
aoqi@0	102	} catch (InvocationTargetException e) {
aoqi@0	103	LOGGER.log(Level.FINE,"Unable to inject "+className,e);
aoqi@0	104	throw new WebServiceException(e);
aoqi@0	105	}
aoqi@0	106	}
aoqi@0	107
aoqi@0	108	}