56 lines
2.1 KiB
Java
56 lines
2.1 KiB
Java
/*
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* Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.io.PrintStream;
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import java.lang.instrument.*;
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import java.lang.reflect.Field;
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/**
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* @test
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* @bug 8160950
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* @summary test for custom system class loader
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*
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* @run build App Agent CustomLoader
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* @run shell ../MakeJAR3.sh Agent 'Can-Retransform-Classes: true'
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* @run main/othervm -javaagent:Agent.jar -Djava.system.class.loader=CustomLoader App
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*/
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public class Agent {
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private static PrintStream err = System.err;
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private static PrintStream out = System.out;
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public static boolean failed = false;
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public static void premain(String agentArgs, Instrumentation instrumentation) {
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ClassLoader myClassLoader = Agent.class.getClassLoader();
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out.println("Agent: started; myClassLoader: " + myClassLoader);
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try {
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Field fld = myClassLoader.getClass().getField("agentClassLoader");
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fld.set(myClassLoader.getClass(), myClassLoader);
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} catch (Exception ex) {
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failed = true;
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ex.printStackTrace();
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}
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out.println("Agent: finished");
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}
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}
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