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
|
/*
* Copyright (c) 2016, 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 8159855
* @summary test ToolProvider SPI
* @run main/othervm -Djava.security.manager=allow ToolProviderTest
*/
import java.io.IOException;
import java.io.PrintWriter;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Arrays;
import java.util.spi.ToolProvider;
public class ToolProviderTest {
public static void main(String... args) throws Exception {
ToolProviderTest t = new ToolProviderTest();
t.run();
}
void run() throws Exception {
initServices();
System.out.println("Validate an NPE is thrown with null arguments");
testNullArgs();
System.out.println("test without security manager present:");
test();
System.setSecurityManager(new SecurityManager());
System.out.println("test with security manager present:");
test();
}
private void test() throws Exception {
ToolProvider testProvider = ToolProvider.findFirst("test").get();
int rc = testProvider.run(System.out, System.err, "hello test");
if (rc != 0) {
throw new Exception("unexpected exit code: " + rc);
}
}
private void testNullArgs() {
ToolProvider testProvider = ToolProvider.findFirst("test").get();
// out null check
expectNullPointerException(() -> testProvider.run(null, System.err));
// err null check
expectNullPointerException(() -> testProvider.run(System.out, null));
// args array null check
expectNullPointerException(() ->
testProvider.run(System.out, System.err, (String[]) null));
// args array elements null check
expectNullPointerException(() ->
testProvider.run(System.out, System.err, (String) null));
}
private static void expectNullPointerException(Runnable test) {
try {
test.run();
throw new Error("NullPointerException not thrown");
} catch (NullPointerException e) {
// expected
}
}
private void initServices() throws IOException {
Path testClasses = Paths.get(System.getProperty("test.classes"));
Path services = testClasses.resolve(Paths.get("META-INF", "services"));
Files.createDirectories(services);
Files.write(services.resolve(ToolProvider.class.getName()),
Arrays.asList(TestProvider.class.getName()));
}
public static class TestProvider implements ToolProvider {
public TestProvider() {
checkPrivileges();
}
public String name() {
return "test";
}
public int run(PrintWriter out, PrintWriter err, String... args) {
out.println("Test: " + Arrays.toString(args));
return 0;
}
private void checkPrivileges() {
boolean haveSecurityManager = (System.getSecurityManager() != null);
try {
// validate appropriate privileges by checking access to a
// system property
System.getProperty("java.home");
if (haveSecurityManager) {
throw new Error("exception not thrown");
}
} catch (SecurityException e) {
if (!haveSecurityManager) {
throw new Error("unexpected exception: " + e);
}
}
}
}
}
|
