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
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
|
/*
* 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.RedefineClasses;
import java.io.*;
/**
* This test checks that preexisting instance fields of a redefined
* class will retain their previous values at the completion of
* the redefinition and any new fields will have their default values.
*/
public class redefclass004 {
static final int PASSED = 0;
static final int FAILED = 2;
static final int NO_RESULTS = 3;
static final int JCK_STATUS_BASE = 95;
static boolean DEBUG_MODE = false;
static String fileDir = ".";
private PrintStream out;
static {
try {
System.loadLibrary("redefclass004");
} catch (UnsatisfiedLinkError e) {
System.err.println("Could not load redefclass004 library");
System.err.println("java.library.path:" +
System.getProperty("java.library.path"));
throw e;
}
}
native static int makeRedefinition(int vrb, Class redefCls,
byte[] classBytes);
native static int checkNewFields(int vrb, redefclass004r redefClsObj);
public static void main(String[] argv) {
argv = nsk.share.jvmti.JVMTITest.commonInit(argv);
System.exit(run(argv, System.out) + JCK_STATUS_BASE);
}
public static int run(String argv[], PrintStream out) {
return new redefclass004().runIt(argv, out);
}
private int runIt(String argv[], PrintStream out) {
File newRedefClassFile = null;
byte[] redefClassBytes;
int retValue = 0;
boolean totalRes = true;
this.out = out;
for (int i = 0; i < argv.length; i++) {
String token = argv[i];
if (token.equals("-v")) // verbose mode
DEBUG_MODE = true;
else
fileDir = token;
}
redefclass004r redefClsObj = new redefclass004r();
if ((retValue=redefClsObj.checkIt(out, DEBUG_MODE)) == 19) {
if (DEBUG_MODE) {
out.println("Successfully check the OLD version of redefclass004r");
out.println("Default values of instance field of the redefined class:");
out.println("\tbyteFld = " + redefClsObj.byteFld);
out.println("\tshortFld = " + redefClsObj.shortFld);
out.println("\tintFld = " + redefClsObj.intFld);
out.println("\tlongFld = " + redefClsObj.longFld);
out.println("\tfloatFld = " + redefClsObj.floatFld);
out.println("\tdoubleFld = " + redefClsObj.doubleFld);
out.println("\tcharFld = '" + redefClsObj.charFld + "'");
out.println("\tbooleanFld = " + redefClsObj.booleanFld);
out.println("\tstringFld = \"" + redefClsObj.stringFld + "\"\n");
}
} else {
out.println("TEST: failed to check the OLD version of redefclass004r");
out.println(" check CLASSPATH to the file oldclass/redefclass004r.class");
out.println(" java.class.path: " +
System.getProperty("java.class.path"));
return FAILED;
}
// change the values of instance (nonstatic) fields of a redefined class
redefClsObj.byteFld = 1;
redefClsObj.shortFld = 2;
redefClsObj.intFld = 3;
redefClsObj.longFld = 4L;
redefClsObj.floatFld = 5.1F;
redefClsObj.doubleFld = 6.0D;
redefClsObj.charFld = 'a';
redefClsObj.booleanFld = false;
redefClsObj.stringFld = "redefclass004r";
// try to redefine class redefclass004r
String fileName = fileDir + File.separator + "newclass" + File.separator +
redefclass004r.class.getName().replace('.', File.separatorChar) +
".class";
if (DEBUG_MODE)
out.println("Trying to redefine class from the file: " + fileName);
try {
FileInputStream in = new FileInputStream(fileName);
redefClassBytes = new byte[in.available()];
in.read(redefClassBytes);
in.close();
} catch (Exception ex) {
out.println("# Unexpected exception while reading class file:");
out.println("# " + ex);
return FAILED;
}
// make real redefinition
if (DEBUG_MODE)
retValue=makeRedefinition(1, redefClsObj.getClass(),
redefClassBytes);
else
retValue=makeRedefinition(0, redefClsObj.getClass(),
redefClassBytes);
switch (retValue) {
case FAILED:
out.println("TEST: failed to redefine class");
return FAILED;
case NO_RESULTS:
return PASSED;
case PASSED:
break;
}
if ((retValue=redefClsObj.checkIt(out, DEBUG_MODE)) == 73) {
if (DEBUG_MODE)
out.println("Successfully check the NEW version of redefclass004r\n");
/* Check that preexisting instance (nonstatic) fields of the redefined class
retain their previous values after the redefinition */
if (redefClsObj.byteFld == 1 && redefClsObj.shortFld == 2 &&
redefClsObj.intFld == 3 && redefClsObj.longFld == 4L &&
redefClsObj.floatFld == 5.1F && redefClsObj.doubleFld == 6.0D &&
redefClsObj.charFld == 'a' && redefClsObj.booleanFld == false &&
redefClsObj.stringFld.equals("redefclass004r")) {
if (DEBUG_MODE)
out.println("Check #1 PASSED: Preexisting instance fields " +
"of the redefined class retain their previous values\n");
} else {
out.println("TEST FAILED: Preexisting instance fields of the " +
"redefined class do not retain their previous values");
out.println("Current values of instance field of the redefined class:");
out.println("\tbyteFld = " + redefClsObj.byteFld +
",\texpected 1");
out.println("\tshortFld = " + redefClsObj.shortFld +
",\texpected 2");
out.println("\tintFld = " + redefClsObj.intFld +
",\texpected 3");
out.println("\tlongFld = " + redefClsObj.longFld +
",\texpected 4");
out.println("\tfloatFld = " + redefClsObj.floatFld +
",\texpected 5.1");
out.println("\tdoubleFld = " + redefClsObj.doubleFld +
",\texpected 6.0");
out.println("\tcharFld = '" + redefClsObj.charFld +
"',\texpected 'a'");
out.println("\tbooleanFld = " + redefClsObj.booleanFld +
",\texpected false");
out.println("\tstringFld = \"" + redefClsObj.stringFld +
"\",\texpected \"redefclass004r\"\n");
totalRes = false;
}
/* Check that all new instance (nonstatic) fields of the redefined class
will have their default values after redefinition */
if (DEBUG_MODE)
retValue=checkNewFields(1, redefClsObj);
else
retValue=checkNewFields(0, redefClsObj);
if (retValue == PASSED) {
if (DEBUG_MODE)
out.println("Check #2 PASSED: All new instance " +
"fields of the redefined class\n" +
"\thave their default values\n");
} else {
out.println("TEST FAILED: New instance fields " +
"of the redefined class were not assigned " +
"their default value\n");
totalRes = false;
}
} else {
if (retValue == 19)
out.println("TEST FAILED: the method redefclass004r.checkIt() is still old");
else
out.println("TEST: failed to call method redefclass004r.checkIt()");
return FAILED;
}
if (totalRes) return PASSED;
else return FAILED;
}
}
|
