--- old/test/testlibrary/RedefineClassHelper.java 2016-08-11 13:49:00.467330000 -0400 +++ /dev/null 2016-08-11 13:49:00.000000000 -0400 @@ -1,79 +0,0 @@ -/* - * Copyright (c) 2014, 2015, 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. - */ - -import java.io.PrintWriter; -import java.lang.instrument.*; -import jdk.test.lib.*; - -/* - * Helper class to write tests that redefine classes. - * When main method is run, it will create a redefineagent.jar that can be used - * with the -javaagent option to support redefining classes in jtreg tests. - * - * See sample test in test/testlibrary_tests/RedefineClassTest.java - */ -public class RedefineClassHelper { - - public static Instrumentation instrumentation; - public static void premain(String agentArgs, Instrumentation inst) { - instrumentation = inst; - } - - /** - * Redefine a class - * - * @param clazz Class to redefine - * @param javacode String with the new java code for the class to be redefined - */ - public static void redefineClass(Class clazz, String javacode) throws Exception { - byte[] bytecode = InMemoryJavaCompiler.compile(clazz.getName(), javacode); - redefineClass(clazz, bytecode); - } - - /** - * Redefine a class - * - * @param clazz Class to redefine - * @param bytecode byte[] with the new class - */ - public static void redefineClass(Class clazz, byte[] bytecode) throws Exception { - instrumentation.redefineClasses(new ClassDefinition(clazz, bytecode)); - } - - /** - * Main method to be invoked before test to create the redefineagent.jar - */ - public static void main(String[] args) throws Exception { - ClassFileInstaller.main("RedefineClassHelper"); - - PrintWriter pw = new PrintWriter("MANIFEST.MF"); - pw.println("Premain-Class: RedefineClassHelper"); - pw.println("Can-Redefine-Classes: true"); - pw.close(); - - sun.tools.jar.Main jarTool = new sun.tools.jar.Main(System.out, System.err, "jar"); - if (!jarTool.run(new String[] { "-cmf", "MANIFEST.MF", "redefineagent.jar", "RedefineClassHelper.class" })) { - throw new Exception("jar operation failed"); - } - } -}