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
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
|
/*
* Copyright (c) 2003, 2018, 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.
*/
package nsk.jvmti.ClassFileLoadHook;
import java.io.*;
import java.lang.reflect.*;
import nsk.share.*;
import nsk.share.jvmti.*;
/**
* Debuggee class of JVMTI test.
*/
public class classfloadhk008 extends DebugeeClass {
/** Load native library if required. */
static {
System.loadLibrary("classfloadhk008");
}
/** Run test from command line. */
public static void main(String argv[]) {
argv = nsk.share.jvmti.JVMTITest.commonInit(argv);
// JCK-compatible exit
System.exit(run(argv, System.out) + Consts.JCK_STATUS_BASE);
}
/** Run test from JCK-compatible environment. */
public static int run(String argv[], PrintStream out) {
return new classfloadhk008().runIt(argv, out);
}
/* =================================================================== */
/* constant names */
public static final String PACKAGE_NAME = "nsk.jvmti.ClassFileLoadHook";
public static final String TESTED_CLASS_NAME = PACKAGE_NAME + ".classfloadhk008r";
/* scaffold objects */
ArgumentHandler argHandler = null;
Log log = null;
long timeout = 0;
int status = Consts.TEST_PASSED;
/* bytecode of redefined class */
public static byte redefClassBytes[] = null;
/* bytecode of instrumented class */
public static byte newClassBytes[] = null;
/* tested class to de redefined */
public static Class<?> testedClass = null;
/* tested method name */
public static final String TESTED_METHOD_NAME = "testedStaticMethod";
/* possible values returned by tested method */
public static final long ORIG_VALUE = 20;
public static final long REDEF_VALUE = 12;
public static final long NEW_VALUE = 58;
/** Run debuggee code. */
public int runIt(String argv[], PrintStream out) {
argHandler = new ArgumentHandler(argv);
log = new Log(out, argHandler);
timeout = argHandler.getWaitTime() * 60 * 1000; // milliseconds
String args[] = argHandler.getArguments();
if (args.length <= 0) {
throw new Failure("Path for tested class file to load not specified");
}
String location = args[0];
String origPath = location + File.separator + "classes";
log.display("Using path to original class: \n\t" + origPath);
String redefPath = location + File.separator + "newclass";
log.display("Using path to redefined class: \n\t" + redefPath);
String newPath = location + File.separator + "newclass01";
log.display("Using path to instrumented class: \n\t" + newPath);
log.display("Reading redefined bytecode of tested class: \n\t" + TESTED_CLASS_NAME);
try {
redefClassBytes = readBytes(redefPath, TESTED_CLASS_NAME);
} catch (IOException e) {
throw new Failure("IOException in reading redefined bytecode of tested class file:\n\t" + e);
}
log.display("Reading instrumented bytecode of tested class: \n\t" + TESTED_CLASS_NAME);
try {
newClassBytes = readBytes(newPath, TESTED_CLASS_NAME);
} catch (IOException e) {
throw new Failure("IOException in reading instrumented bytecode of tested class file:\n\t" + e);
}
try {
log.display("Loading original tested class: " + TESTED_CLASS_NAME);
testedClass = Class.forName(TESTED_CLASS_NAME);
} catch (ClassNotFoundException e) {
throw new Failure("Tested class not found: \n\t" + e);
}
log.display("Sync: tested class loaded");
status = checkStatus(status);
log.display("Checking if the tested class was actually redefined");
try {
Method meth = testedClass.getMethod(TESTED_METHOD_NAME, new Class[0]);
Object res = meth.invoke(null, new Object[0]);
if (!(res instanceof Long)) {
log.complain("Tested method of redefined and instrumented class retured not Long value: " + res);
log.complain("The tested class was redefined and instrumented incorrectly!");
status = Consts.TEST_FAILED;
} else {
long value = ((Long)res).longValue();
log.display("Tested method of redefined and instrumented class returned value: " + value);
if (value == ORIG_VALUE) {
log.complain("Tested method of redefined and instrumented class returned original value: " + value);
log.complain("The tested class was not redefined nor instrumented!");
status = Consts.TEST_FAILED;
} else if (value == REDEF_VALUE) {
log.complain("Tested method of redefined and instrumented class returned redefined value: " + value);
log.complain("The tested class was redefined but not instrumented!");
status = Consts.TEST_FAILED;
} else if (value != NEW_VALUE) {
log.complain("Tested method of redefined and instrumented class returned unexpected value: " + value);
log.complain("The tested class was redefined and instrumented incorrectly!");
status = Consts.TEST_FAILED;
} else {
log.display("Tested method of redefined and instrumented class returned expected new value: " + value);
log.display("The tested class was redefined and instrumented correctly!");
}
}
} catch (NoSuchMethodException e) {
log.complain("No tested method found in redefined and instrumented class:\n\t" + e);
status = Consts.TEST_FAILED;
} catch (Exception e) {
log.complain("Exception in invoking method of redefined and instrumented class:\n\t" + e);
status = Consts.TEST_FAILED;
}
return status;
}
/** Read classfile for specified path and class name. */
public static byte[] readBytes(String path, String classname) throws IOException {
String filename = path + File.separator
+ classname.replace('.', File.separatorChar) + ".class";
FileInputStream in = new FileInputStream(filename);
byte[] bytes = new byte[in.available()];
in.read(bytes);
in.close();
return bytes;
}
}
|
