1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
/*
* Copyright (c) 2019, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 8225325
* @summary Add tests for redefining a class' private method during resolution of the bootstrap specifier
* @library /test/lib
* @modules java.base/jdk.internal.misc
* @modules java.compiler
* java.instrument
* @compile ../NamedBuffer.java
* @compile redef/Xost.java
* @run main RedefineClassHelper
* @run main/othervm -javaagent:redefineagent.jar -Xlog:redefine+class*=trace RedefineMathTesterMethods
*/
interface MathOperation {
public int operation(int a, int b);
}
class Host {
static class B {
public static int operate(int a, int b, MathOperation mathOperation) {
return mathOperation.operation(a, b);
}
static int test_math() {
MathOperation addition = (int a, int b) -> a + b;
return operate(10, 5, addition);
}
}
}
public class RedefineMathTesterMethods {
private static byte[] bytesForHostClass(char replace) throws Throwable {
return NamedBuffer.bytesForHostClass(replace, "Host$B");
}
public static void main(String[] args) throws Throwable {
int res = Host.B.test_math();
System.out.println("Result = " + res);
if (res != 15) {
throw new Error("test_math returned " + res + " expected " + 15);
}
byte[] buf = bytesForHostClass('X');
RedefineClassHelper.redefineClass(Host.B.class, buf);
res = Host.B.test_math();
if (res != 5)
throw new Error("test_math returned " + res + " expected " + 5);
}
}
|
