blob: 4cec5c360c0f576bee2c086602ba47f36f6ef10f [file] [log] [blame]
/*
* Copyright (c) 2017, 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.lang.instrument.Instrumentation;
public class Main {
public static void main(String[] args) throws Exception {
Instrumentation inst = Agent.inst;
if (inst == null)
throw new RuntimeException("Agent not loaded");
// check boot class path has been extended
Class<?> helper = Class.forName("AgentHelper");
if (helper.getClassLoader() != null)
throw new RuntimeException("AgentHelper not loaded by boot loader");
// check Instrumentation object can be used
Class<?>[] classes = inst.getAllLoadedClasses();
System.out.println(classes.length + " classes loaded");
}
}