diff -r aec458f88f96 -r e8971dbd447d jdk/src/share/classes/com/sun/naming/internal/VersionHelper12.java --- a/jdk/src/share/classes/com/sun/naming/internal/VersionHelper12.java Fri Aug 01 14:09:19 2014 -0700 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,268 +0,0 @@ -/* - * Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved. - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This code is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 only, as - * published by the Free Software Foundation. Oracle designates this - * particular file as subject to the "Classpath" exception as provided - * by Oracle in the LICENSE file that accompanied this code. - * - * This code is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * version 2 for more details (a copy is included in the LICENSE file that - * accompanied this code). - * - * You should have received a copy of the GNU General Public License version - * 2 along with this work; if not, write to the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - * - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA - * or visit www.oracle.com if you need additional information or have any - * questions. - */ - -package com.sun.naming.internal; - -import java.io.InputStream; -import java.io.IOException; -import java.net.MalformedURLException; -import java.net.URLClassLoader; -import java.net.URL; -import java.security.AccessController; -import java.security.PrivilegedAction; -import java.security.PrivilegedActionException; -import java.security.PrivilegedExceptionAction; -import java.util.Enumeration; -import java.util.NoSuchElementException; -import java.util.Properties; - -import javax.naming.*; - -/** - * VersionHelper was used by JNDI to accommodate differences between - * JDK 1.1.x and the Java 2 platform. As this is no longer necessary - * since JNDI's inclusion in the platform, this class currently - * serves as a set of utilities for performing system-level things, - * such as class-loading and reading system properties. - * - * @author Rosanna Lee - * @author Scott Seligman - */ - -final class VersionHelper12 extends VersionHelper { - - // Disallow external from creating one of these. - VersionHelper12() { - } - - public Class loadClass(String className) throws ClassNotFoundException { - return loadClass(className, getContextClassLoader()); - } - - /** - * Package private. - * - * This internal method is used with Thread Context Class Loader (TCCL), - * please don't expose this method as public. - */ - Class loadClass(String className, ClassLoader cl) - throws ClassNotFoundException { - Class cls = Class.forName(className, true, cl); - return cls; - } - - /** - * @param className A non-null fully qualified class name. - * @param codebase A non-null, space-separated list of URL strings. - */ - public Class loadClass(String className, String codebase) - throws ClassNotFoundException, MalformedURLException { - - ClassLoader parent = getContextClassLoader(); - ClassLoader cl = - URLClassLoader.newInstance(getUrlArray(codebase), parent); - - return loadClass(className, cl); - } - - String getJndiProperty(final int i) { - return AccessController.doPrivileged( - new PrivilegedAction() { - public String run() { - try { - return System.getProperty(PROPS[i]); - } catch (SecurityException e) { - return null; - } - } - } - ); - } - - String[] getJndiProperties() { - Properties sysProps = AccessController.doPrivileged( - new PrivilegedAction() { - public Properties run() { - try { - return System.getProperties(); - } catch (SecurityException e) { - return null; - } - } - } - ); - if (sysProps == null) { - return null; - } - String[] jProps = new String[PROPS.length]; - for (int i = 0; i < PROPS.length; i++) { - jProps[i] = sysProps.getProperty(PROPS[i]); - } - return jProps; - } - - InputStream getResourceAsStream(final Class c, final String name) { - return AccessController.doPrivileged( - new PrivilegedAction() { - public InputStream run() { - return c.getResourceAsStream(name); - } - } - ); - } - - InputStream getJavaHomeLibStream(final String filename) { - return AccessController.doPrivileged( - new PrivilegedAction() { - public InputStream run() { - try { - String javahome = System.getProperty("java.home"); - if (javahome == null) { - return null; - } - String pathname = javahome + java.io.File.separator + - "lib" + java.io.File.separator + filename; - return new java.io.FileInputStream(pathname); - } catch (Exception e) { - return null; - } - } - } - ); - } - - NamingEnumeration getResources(final ClassLoader cl, - final String name) throws IOException { - Enumeration urls; - try { - urls = AccessController.doPrivileged( - new PrivilegedExceptionAction>() { - public Enumeration run() throws IOException { - return (cl == null) - ? ClassLoader.getSystemResources(name) - : cl.getResources(name); - } - } - ); - } catch (PrivilegedActionException e) { - throw (IOException)e.getException(); - } - return new InputStreamEnumeration(urls); - } - - /** - * Package private. - * - * This internal method returns Thread Context Class Loader (TCCL), - * if null, returns the system Class Loader. - * - * Please don't expose this method as public. - */ - ClassLoader getContextClassLoader() { - - return AccessController.doPrivileged( - new PrivilegedAction() { - public ClassLoader run() { - ClassLoader loader = - Thread.currentThread().getContextClassLoader(); - if (loader == null) { - // Don't use bootstrap class loader directly! - loader = ClassLoader.getSystemClassLoader(); - } - - return loader; - } - } - ); - } - - /** - * Given an enumeration of URLs, an instance of this class represents - * an enumeration of their InputStreams. Each operation on the URL - * enumeration is performed within a doPrivileged block. - * This is used to enumerate the resources under a foreign codebase. - * This class is not MT-safe. - */ - class InputStreamEnumeration implements NamingEnumeration { - - private final Enumeration urls; - - private InputStream nextElement = null; - - InputStreamEnumeration(Enumeration urls) { - this.urls = urls; - } - - /* - * Returns the next InputStream, or null if there are no more. - * An InputStream that cannot be opened is skipped. - */ - private InputStream getNextElement() { - return AccessController.doPrivileged( - new PrivilegedAction() { - public InputStream run() { - while (urls.hasMoreElements()) { - try { - return urls.nextElement().openStream(); - } catch (IOException e) { - // skip this URL - } - } - return null; - } - } - ); - } - - public boolean hasMore() { - if (nextElement != null) { - return true; - } - nextElement = getNextElement(); - return (nextElement != null); - } - - public boolean hasMoreElements() { - return hasMore(); - } - - public InputStream next() { - if (hasMore()) { - InputStream res = nextElement; - nextElement = null; - return res; - } else { - throw new NoSuchElementException(); - } - } - - public InputStream nextElement() { - return next(); - } - - public void close() { - } - } -}