FromShutdownHook.java revision 12973:2e63fa2efdb1 
1/*
2 * Copyright (c) 2004, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24/*
25 * @test
26 * @bug 5050487
27 * @summary Check that Instrumentation methods can execute from a runtime
28 *          shutdown hook
29 * @run build FromShutdownHook
30 * @run shell MakeJAR.sh basicAgent
31 * @run main/othervm -javaagent:basicAgent.jar FromShutdownHook FromShutdownHook
32 */
33import java.lang.instrument.Instrumentation;
34
35public class FromShutdownHook
36    extends ASimpleInstrumentationTestCase
37{
38    public FromShutdownHook(String name) {
39        super(name);
40    }
41    public static void main(String args[] ) throws Throwable {
42        FromShutdownHook fsh = new FromShutdownHook(args[0]);
43        fsh.runTest();
44    }
45
46    Instrumentation ins;
47
48    protected final void doRunTest() {
49        // keep reference to Instrumentation
50        ins = fInst;
51
52        // install shutdown hook
53        Runtime.getRuntime().addShutdownHook(new Thread() {
54            public void run() {
55                System.err.println(ins.getAllLoadedClasses().length +
56                        " classes loaded.");
57            }
58        });
59    }
60}
61