Agent.java revision 13901:b2a69d66dc65 
1/*
2 * Copyright (c) 2004, 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 *
26 *
27 * Used by BootClassPath.sh
28 *
29 * Loads a supporting class and tests that the class is loaded from the boot
30 * class path.
31 */
32import java.lang.instrument.Instrumentation;
33
34public class Agent {
35    public static void premain(String options, Instrumentation ins) throws Exception {
36        Class<?> c = Class.forName("AgentSupport");
37        ClassLoader cl = c.getClassLoader();
38        if (cl != null) {
39            System.err.println("AgentSupport loaded by: " + cl);
40            throw new RuntimeException("AgentSupport class not loaded by boot class loader");
41        } else {
42            System.out.println("AgentSupport loaded by boot class loader");
43        }
44    }
45}
46