1 /*
2 * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /*
25 * @test
26 * @summary Verifies the creation and cleaup of entries in the Protection Domain Table
27 * @library /test/lib
28 * @modules java.base/jdk.internal.misc
29 * @build sun.hotspot.WhiteBox
30 * @run driver ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission
31 * @run main CleanProtectionDomain
32 */
33
34 import java.security.ProtectionDomain;
35 import jdk.test.lib.compiler.InMemoryJavaCompiler;
36 import jdk.internal.misc.Unsafe;
37 import static jdk.test.lib.Asserts.*;
38 import jdk.test.lib.process.OutputAnalyzer;
39 import jdk.test.lib.process.ProcessTools;
40 import sun.hotspot.WhiteBox;
41
42 public class CleanProtectionDomain {
43
44 public static void main(String args[]) throws Exception {
45 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
46 "-Xlog:protectiondomain+table=debug",
47 "--add-exports=java.base/jdk.internal.misc=ALL-UNNAMED",
48 "-XX:+UnlockDiagnosticVMOptions",
49 "-XX:+WhiteBoxAPI",
50 "-Xbootclasspath/a:.",
51 Test.class.getName());
52 OutputAnalyzer output = new OutputAnalyzer(pb.start());
53 output.shouldContain("protection domain added");
54 output.shouldContain("protection domain unlinked");
55 output.shouldHaveExitValue(0);
56 }
57
58 static class Test {
59 public static void test() throws Exception {
60 TestClassLoader classloader = new TestClassLoader();
61 ProtectionDomain pd = new ProtectionDomain(null, null);
62 byte klassbuf[] = InMemoryJavaCompiler.compile("TestClass", "class TestClass { }");
63 Class<?> klass = classloader.defineClass("TestClass", klassbuf, pd);
64 }
65
66 public static void main(String[] args) throws Exception {
67 WhiteBox wb = WhiteBox.getWhiteBox();
68 int removedCountOrig = wb.protectionDomainRemovedCount();
69 int removedCount;
70
71 test();
72
73 // Wait until ServiceThread cleans ProtectionDomain table.
74 // When the TestClassLoader is unloaded by GC, at least one
75 // ProtectionDomainCacheEntry will be eligible for removal.
76 int cnt = 0;
77 while (true) {
78 if (cnt++ % 30 == 0) {
79 System.gc();
80 }
81 removedCount = wb.protectionDomainRemovedCount();
82 if (removedCountOrig != removedCount) {
83 break;
84 }
85 Thread.sleep(100);
86 }
87 }
88
89 private static class TestClassLoader extends ClassLoader {
90 public TestClassLoader() {
91 super();
92 }
93
94 public Class<?> defineClass(String name, byte[] bytes, ProtectionDomain pd) {
95 return defineClass(name, bytes, 0, bytes.length, pd);
96 }
97 }
98 }
99 }
--- EOF ---