1 /*
2 * Copyright (c) 2013, 2015, 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 import java.io.BufferedReader;
25 import java.io.InputStreamReader;
26 import java.lang.Class;
27 import java.lang.String;
28 import java.lang.System;
29 import java.lang.management.ManagementFactory;
30 import java.lang.management.RuntimeMXBean;
31 import java.util.ArrayList;
32 import java.util.List;
33 import java.util.concurrent.CyclicBarrier;
34 import java.util.regex.Matcher;
35 import java.util.regex.Pattern;
36 import java.lang.reflect.Field;
37 import java.lang.reflect.Modifier;
38 import sun.misc.Unsafe;
39 import jdk.internal.vm.annotation.Contended;
40
41 /*
42 * @test
43 * @bug 8015270
44 * @bug 8015493
45 * @summary \@Contended: fix multiple issues in the layout code
46 *
47 * @modules java.base/jdk.internal.vm.annotation
48 * @run main/othervm -XX:-RestrictContended -XX:ContendedPaddingWidth=128 -Xmx128m OopMaps
49 */
50 public class OopMaps {
51
52 public static final int COUNT = 10000;
53
54 public static void main(String[] args) throws Exception {
55 Object o01 = new Object();
56 Object o02 = new Object();
57 Object o03 = new Object();
58 Object o04 = new Object();
59 Object o05 = new Object();
60 Object o06 = new Object();
61 Object o07 = new Object();
62 Object o08 = new Object();
63 Object o09 = new Object();
64 Object o10 = new Object();
65 Object o11 = new Object();
66 Object o12 = new Object();
67 Object o13 = new Object();
68 Object o14 = new Object();
69
70 R1[] rs = new R1[COUNT];
71
72 for (int i = 0; i < COUNT; i++) {
73 R1 r1 = new R1();
74 r1.o01 = o01;
75 r1.o02 = o02;
76 r1.o03 = o03;
77 r1.o04 = o04;
78 r1.o05 = o05;
79 r1.o06 = o06;
80 r1.o07 = o07;
81 r1.o08 = o08;
82 r1.o09 = o09;
83 r1.o10 = o10;
84 r1.o11 = o11;
85 r1.o12 = o12;
86 r1.o13 = o13;
87 r1.o14 = o14;
88 r1.i1 = 1;
89 r1.i2 = 2;
90 r1.i3 = 3;
91 r1.i4 = 4;
92 rs[i] = r1;
93 }
94
95 System.gc();
96
97 for (int i = 0; i < COUNT; i++) {
98 R1 r1 = rs[i];
99 if (r1.o01 != o01) throw new Error("Test Error: o01");
100 if (r1.o02 != o02) throw new Error("Test Error: o02");
101 if (r1.o03 != o03) throw new Error("Test Error: o03");
102 if (r1.o04 != o04) throw new Error("Test Error: o04");
103 if (r1.o05 != o05) throw new Error("Test Error: o05");
104 if (r1.o06 != o06) throw new Error("Test Error: o06");
105 if (r1.o07 != o07) throw new Error("Test Error: o07");
106 if (r1.o08 != o08) throw new Error("Test Error: o08");
107 if (r1.o09 != o09) throw new Error("Test Error: o09");
108 if (r1.o10 != o10) throw new Error("Test Error: o10");
109 if (r1.o11 != o11) throw new Error("Test Error: o11");
110 if (r1.o12 != o12) throw new Error("Test Error: o12");
111 if (r1.o13 != o13) throw new Error("Test Error: o13");
112 if (r1.o14 != o14) throw new Error("Test Error: o14");
113 if (r1.i1 != 1) throw new Error("Test Error: i1");
114 if (r1.i2 != 2) throw new Error("Test Error: i2");
115 if (r1.i3 != 3) throw new Error("Test Error: i3");
116 if (r1.i4 != 4) throw new Error("Test Error: i4");
117 }
118 }
119
120 public static class R0 {
121 int i1;
122 int i2;
123
124 Object o01;
125 Object o02;
126
127 @Contended
128 Object o03;
129
130 @Contended
131 Object o04;
132
133 @Contended
134 Object o05;
135
136 @Contended
137 Object o06;
138
139 @Contended
140 Object o07;
141 }
142
143 public static class R1 extends R0 {
144 int i3;
145 int i4;
146
147 Object o08;
148 Object o09;
149
150 @Contended
151 Object o10;
152
153 @Contended
154 Object o11;
155
156 @Contended
157 Object o12;
158
159 @Contended
160 Object o13;
161
162 @Contended
163 Object o14;
164 }
165
166 }
167