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
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
/*
* Copyright (c) 2020, 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. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* 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 8216324
* @summary GetClassMethods is confused by the presence of default methods in super interfaces
* @library /test/lib
* @compile OverpassMethods.java
* @run main/othervm/native -agentlib:OverpassMethods OverpassMethods
* @run main/othervm/native -agentlib:OverpassMethods=maintain_original_method_order OverpassMethods
*/
import java.lang.reflect.Method;
import java.util.Arrays;
public class OverpassMethods {
static {
try {
System.loadLibrary("OverpassMethods");
} catch (UnsatisfiedLinkError ex) {
System.err.println("Could not load OverpassMethods library");
System.err.println("java.library.path:" + System.getProperty("java.library.path"));
throw ex;
}
}
static private void log(Object msg) {
System.out.println(String.valueOf(msg));
}
static private native Method[] getJVMTIDeclaredMethods(Class<?> klass);
public interface Parent {
default String def() { return "Parent.def"; }
String method0();
String method1();
}
public interface Child extends Parent {
String method2();
}
public static class Impl implements Child {
public String method0() { return "Impl.method0"; }
public String method1() { return "Impl.method1"; }
public String method2() { return "Impl.method2"; }
}
public static void main(String[] args) {
new Impl(); // To get classes initialized
Method[] reflectMethods = Child.class.getDeclaredMethods();
Method[] jvmtiMethods = getJVMTIDeclaredMethods(Child.class);
if (jvmtiMethods == null) {
throw new RuntimeException("getJVMTIDeclaredMethods failed");
}
log("Reflection getDeclaredMethods returned: " + Arrays.toString(reflectMethods));
log("JVMTI GetClassMethods returned: " + Arrays.toString(jvmtiMethods));
if (reflectMethods.length != jvmtiMethods.length) {
throw new RuntimeException("OverpassMethods failed: Unexpected method count from JVMTI GetClassMethods!");
}
if (!reflectMethods[0].equals(jvmtiMethods[0])) {
throw new RuntimeException("OverpassMethods failed: Unexpected method from JVMTI GetClassMethods!");
}
log("Test passed: Got expected output from JVMTI GetClassMethods!");
}
}
|
