| /* |
| * Copyright (c) 2015, 2016, 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. |
| */ |
| |
| /** |
| * @test |
| * @bug 8046246 |
| * @summary Tests and benchmarks the JVMTI RedefineClasses when a |
| * single class (and its parent) contains many methods. |
| * |
| * @modules jdk.compiler |
| * java.instrument |
| * jdk.zipfs |
| * @run build ManyMethodsBenchmarkApp ManyMethodsBenchmarkAgent |
| * @run shell MakeJAR3.sh ManyMethodsBenchmarkAgent 'Can-Retransform-Classes: true' |
| * @run main/othervm -javaagent:ManyMethodsBenchmarkAgent.jar ManyMethodsBenchmarkApp |
| */ |
| import java.lang.instrument.*; |
| |
| public class ManyMethodsBenchmarkAgent |
| { |
| public static boolean fail = false; |
| public static boolean completed = false; |
| private static Instrumentation instrumentation; |
| |
| public static void |
| premain( String agentArgs, |
| Instrumentation instrumentation) { |
| System.out.println("ManyMethodsBenchmarkAgent started"); |
| ManyMethodsBenchmarkAgent.instrumentation = instrumentation; |
| System.out.println("ManyMethodsBenchmarkAgent finished"); |
| } |
| |
| static void instr() { |
| System.out.println("ManyMethodsBenchmarkAgent.instr started"); |
| |
| Class[] allClasses = instrumentation.getAllLoadedClasses(); |
| |
| for (int i = 0; i < allClasses.length; i++) { |
| Class klass = allClasses[i]; |
| String name = klass.getName(); |
| if (!name.equals("Base")) { |
| continue; |
| } |
| System.err.println("Instrumenting the class: " + klass); |
| |
| try { |
| instrumentation.retransformClasses(klass); |
| } catch (Throwable e) { |
| System.err.println("Error: bad return from retransform: " + klass); |
| System.err.println(" ERROR: " + e); |
| fail = true; |
| } |
| } |
| completed = true; |
| System.out.println("ManyMethodsBenchmarkAgent.instr finished"); |
| } |
| |
| } |