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
|
/*
* Copyright (c) 1998, 2010, 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.
*/
/*
* This test runs in othervm mode as it tests ClassLoader.findSystemClass
* and getSystemResource methods.
*/
/* @test
@bug 4147599 4478150
@summary In 1.2beta4-I ClassLoader loaded classes can not link
against application classes.
@run main/othervm Loader
*/
/*
* We are trying to test that certain methods of ClassLoader look at the same
* paths as they did in 1.1. To run this test on 1.1, you will have to pass
* "-1.1" as option on the command line.
*
* The required files are:
*
* - Loader.java (a 1.1 style class loader)
* - Loadee.java (source for a class that refers to Loader)
* - Loadee.classfile (to test findSystemClass)
* - Loadee.resource (to test getSystemResource)
*
* The extension ".classfile" is so the class file is not seen by any loader
* other than Loader. If you need to make any changes you will have to
* compile Loadee.java and rename Loadee.class to Loadee.classfile.
*/
import java.io.File;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.net.URL;
import java.util.HashSet;
/**
* A 1.1-style ClassLoader. The only class it can really load is "Loadee".
* For other classes it might be asked to load, it relies on loaders set up by
* the launcher.
*/
public class Loader extends ClassLoader {
public Class loadClass(String name, boolean resolve)
throws ClassNotFoundException {
Class c = null;
try {
c = findSystemClass(name);
} catch (ClassNotFoundException cnfe) {
}
if (c == null) {
if (!name.equals("Loadee"))
throw new Error("java.lang.ClassLoader.findSystemClass() " +
"did not find class " + name);
byte[] b = locateBytes();
c = defineClass(name, b, 0, b.length);
}
if (resolve) {
resolveClass(c);
}
return c;
}
private byte[] locateBytes() {
try {
File f = new File(System.getProperty("test.src", "."),
"Loadee.classfile");
long l = f.length();
byte[] b = new byte[(int)l];
DataInputStream in =
new DataInputStream(new FileInputStream(f));
in.readFully(b);
return b;
} catch (IOException ioe) {
ioe.printStackTrace();
throw new Error("Test failed due to IOException!");
}
}
private static final int FIND = 0x1;
private static final int RESOURCE = 0x2;
private static final int RESOURCES = 0x4;
public static void main(String[] args) throws Exception {
int tests = FIND | RESOURCE | RESOURCES;
if (args.length == 1 && args[0].equals("-1.1")) {
tests &= ~RESOURCES; /* Do not run getResources test. */
}
if ((tests & FIND) == FIND) {
report("findSystemClass()");
ClassLoader l = new Loader();
Class c = l.loadClass("Loadee");
Object o = c.newInstance();
}
if ((tests & RESOURCE) == RESOURCE) {
report("getSystemResource()");
URL u = getSystemResource("Loadee.resource");
if (u == null)
throw new Exception
("java.lang.ClassLoader.getSystemResource() test failed!");
}
}
private static void report(String s) {
System.out.println("Testing java.lang.ClassLoader." + s + " ...");
}
}
|
