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/*
* Copyright (c) 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.
*/
import java.io.PrintStream;
import java.lang.instrument.*;
import java.lang.reflect.Field;
/**
* @test
* @bug 8160950
* @summary test for custom system class loader
*
* @run build App Agent CustomLoader
* @run shell ../MakeJAR3.sh Agent 'Can-Retransform-Classes: true'
* @run main/othervm -javaagent:Agent.jar -Djava.system.class.loader=CustomLoader App
*/
public class Agent {
private static PrintStream err = System.err;
private static PrintStream out = System.out;
public static boolean failed = false;
public static void premain(String agentArgs, Instrumentation instrumentation) {
ClassLoader myClassLoader = Agent.class.getClassLoader();
out.println("Agent: started; myClassLoader: " + myClassLoader);
try {
Field fld = myClassLoader.getClass().getField("agentClassLoader");
fld.set(myClassLoader.getClass(), myClassLoader);
} catch (Exception ex) {
failed = true;
ex.printStackTrace();
}
out.println("Agent: finished");
}
}
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