/*

 * Copyright 2004 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 */

/*

 * @test

 * @bug 5050487

 * @summary Check that Instrumentation methods can execute from a runtime

 *          shutdown hook

 * @run build FromShutdownHook

 * @run shell MakeJAR.sh basicAgent

 * @run main/othervm -javaagent:basicAgent.jar FromShutdownHook FromShutdownHook

 */

import java.lang.instrument.Instrumentation;

public class FromShutdownHook

    extends ASimpleInstrumentationTestCase

{

    public FromShutdownHook(String name) {

        super(name);

    }

    public static void main(String args[] ) throws Throwable {

        FromShutdownHook fsh = new FromShutdownHook(args[0]);

        fsh.runTest();

    }

    Instrumentation ins;

    protected final void doRunTest() {

        // keep reference to Instrumentation

        ins = fInst;

        // install shutdown hook

        Runtime.getRuntime().addShutdownHook(new Thread() {

            public void run() {

                System.err.println(ins.getAllLoadedClasses().length +

                        " classes loaded.");

            }

        });

    }

}