Sun, 12 Jul 2020 17:34:04 +0100
Added tag jdk8u262-b10 for changeset 1c6e1f187fdc
1 /*
2 * Copyright (c) 2014, 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 */
24 /*
25 * @test
26 * @library /testlibrary
27 * @summary Proof of concept test for RedefineClassHelper
28 * @build RedefineClassHelper
29 * @run main RedefineClassHelper
30 * @run main/othervm -javaagent:redefineagent.jar RedefineClassTest
31 */
33 import static com.oracle.java.testlibrary.Asserts.*;
34 import com.oracle.java.testlibrary.*;
36 /*
37 * Proof of concept test for the test utility class RedefineClassHelper
38 */
39 public class RedefineClassTest {
41 public static String newClass = "class RedefineClassTest$A { public int Method() { return 2; } }";
42 public static void main(String[] args) throws Exception {
43 A a = new A();
44 assertTrue(a.Method() == 1);
45 RedefineClassHelper.redefineClass(A.class, newClass);
46 assertTrue(a.Method() == 2);
47 }
49 static class A {
50 public int Method() {
51 return 1;
52 }
53 }
54 }