Mercurial > hg > graal-compiler
view test/runtime/8003720/VictimClassLoader.java @ 19854:e17f04731c61
Merge.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Sat, 14 Mar 2015 02:04:40 +0100 |
parents | d0aa87f04bd5 |
children |
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/* * Copyright (c) 2012, 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. * * 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. * */ public class VictimClassLoader extends ClassLoader { public static long counter = 0; private int which = (int) ++counter; protected VictimClassLoader() { super(VictimClassLoader.class.getClassLoader()); } protected Class loadClass(String name, boolean resolve) throws ClassNotFoundException { Class c; if (!name.endsWith("Victim")) { c = super.loadClass(name, resolve); return c; } c = findLoadedClass(name); if (c != null) { return c; } byte[] buf = readClassFile(name); c = defineClass(name, buf, 0, buf.length); resolveClass(c); if (c.getClassLoader() != this) { throw new AssertionError(); } Test8003720.println("loaded " + c + "#" + System.identityHashCode(c) + " in " + c.getClassLoader()); return c; } static byte[] readClassFile(String name) { try { String rname = name.substring(name.lastIndexOf('.') + 1) + ".class"; java.net.URL url = VictimClassLoader.class.getResource(rname); Test8003720.println("found " + rname + " = " + url); java.net.URLConnection connection = url.openConnection(); int contentLength = connection.getContentLength(); byte[] buf = readFully(connection.getInputStream(), contentLength); return Asmator.fixup(buf); } catch (java.io.IOException ex) { throw new Error(ex); } } static byte[] readFully(java.io.InputStream in, int len) throws java.io.IOException { // Warning here: return sun.misc.IOUtils.readFully(in, len, true); } public void finalize() { Test8003720.println("Goodbye from " + this); } public String toString() { return "VictimClassLoader#" + which; } }