1 /*
2 * Copyright (c) 2015, 2017, 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.*;
25
26 import org.testng.annotations.DataProvider;
27 import org.testng.annotations.Test;
28
29 import static jdk.test.lib.util.SerializationUtils.*;
30 import static org.testng.Assert.*;
31
32 /*
33 * @test
34 * @bug 8077559
35 * @library /test/lib
36 * @build jdk.test.lib.util.SerializationUtils
37 * @summary Tests Compact String. This one is testing StringBuffer serialization
38 * among -XX:+CompactStrings/-XX:-CompactStrings/LegacyStringBuffer
39 * @run testng/othervm -XX:+CompactStrings CompactStringBufferSerialization
40 * @run testng/othervm -XX:-CompactStrings CompactStringBufferSerialization
41 */
42
43 public class CompactStringBufferSerialization {
44 @DataProvider
45 public Object[][] provider() {
46 return new Object[][] {
47 // every byte array is serialized from corresponding StringBuilder object
48 // by previous JDK(build 1.8.0_45-b14).
49 new Object[] {
50 new StringBuffer(""),
51 new byte[] { -84, -19, 0, 5, 115, 114, 0, 22, 106, 97, 118, 97, 46, 108, 97, 110, 103, 46, 83, 116, 114, 105, 110, 103, 66, 117, 102,
52 102, 101, 114, 47, 7, 7, -39, -22, -56, -22, -45, 3, 0, 3, 73, 0, 5, 99, 111, 117, 110, 116, 90, 0, 6, 115, 104, 97, 114, 101,
53 100, 91, 0, 5, 118, 97, 108, 117, 101, 116, 0, 2, 91, 67, 120, 112, 0, 0, 0, 0, 0, 117, 114, 0, 2, 91, 67, -80, 38, 102, -80,
54 -30, 93, -124, -84, 2, 0, 0, 120, 112, 0, 0, 0, 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
55 0, 0, 0, 0, 0, 0, 0, 120 } },
56 new Object[] {
57 new StringBuffer("A"),
58 new byte[] { -84, -19, 0, 5, 115, 114, 0, 22, 106, 97, 118, 97, 46, 108, 97, 110, 103, 46, 83, 116, 114, 105, 110, 103, 66, 117, 102,
59 102, 101, 114, 47, 7, 7, -39, -22, -56, -22, -45, 3, 0, 3, 73, 0, 5, 99, 111, 117, 110, 116, 90, 0, 6, 115, 104, 97, 114, 101,
60 100, 91, 0, 5, 118, 97, 108, 117, 101, 116, 0, 2, 91, 67, 120, 112, 0, 0, 0, 1, 0, 117, 114, 0, 2, 91, 67, -80, 38, 102, -80,
61 -30, 93, -124, -84, 2, 0, 0, 120, 112, 0, 0, 0, 17, 0, 65, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
62 0, 0, 0, 0, 0, 0, 0, 0, 0, 120 } },
63 new Object[] {
64 new StringBuffer("AB"),
65 new byte[] { -84, -19, 0, 5, 115, 114, 0, 22, 106, 97, 118, 97, 46, 108, 97, 110, 103, 46, 83, 116, 114, 105, 110, 103, 66, 117, 102,
66 102, 101, 114, 47, 7, 7, -39, -22, -56, -22, -45, 3, 0, 3, 73, 0, 5, 99, 111, 117, 110, 116, 90, 0, 6, 115, 104, 97, 114, 101,
67 100, 91, 0, 5, 118, 97, 108, 117, 101, 116, 0, 2, 91, 67, 120, 112, 0, 0, 0, 2, 0, 117, 114, 0, 2, 91, 67, -80, 38, 102, -80,
68 -30, 93, -124, -84, 2, 0, 0, 120, 112, 0, 0, 0, 18, 0, 65, 0, 66, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
69 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 120 } },
70 new Object[] {
71 new StringBuffer("abcdefghijk"),
72 new byte[] { -84, -19, 0, 5, 115, 114, 0, 22, 106, 97, 118, 97, 46, 108, 97, 110, 103, 46, 83, 116, 114, 105, 110, 103, 66, 117, 102,
73 102, 101, 114, 47, 7, 7, -39, -22, -56, -22, -45, 3, 0, 3, 73, 0, 5, 99, 111, 117, 110, 116, 90, 0, 6, 115, 104, 97, 114, 101,
74 100, 91, 0, 5, 118, 97, 108, 117, 101, 116, 0, 2, 91, 67, 120, 112, 0, 0, 0, 11, 0, 117, 114, 0, 2, 91, 67, -80, 38, 102, -80,
75 -30, 93, -124, -84, 2, 0, 0, 120, 112, 0, 0, 0, 27, 0, 97, 0, 98, 0, 99, 0, 100, 0, 101, 0, 102, 0, 103, 0, 104, 0, 105, 0,
76 106, 0, 107, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 120 } },
77 new Object[] {
78 new StringBuffer("\uff21"),
79 new byte[] { -84, -19, 0, 5, 115, 114, 0, 22, 106, 97, 118, 97, 46, 108, 97, 110, 103, 46, 83, 116, 114, 105, 110, 103, 66, 117, 102,
80 102, 101, 114, 47, 7, 7, -39, -22, -56, -22, -45, 3, 0, 3, 73, 0, 5, 99, 111, 117, 110, 116, 90, 0, 6, 115, 104, 97, 114, 101,
81 100, 91, 0, 5, 118, 97, 108, 117, 101, 116, 0, 2, 91, 67, 120, 112, 0, 0, 0, 1, 0, 117, 114, 0, 2, 91, 67, -80, 38, 102, -80,
82 -30, 93, -124, -84, 2, 0, 0, 120, 112, 0, 0, 0, 17, -1, 33, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
83 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 120 } },
84 new Object[] {
85 new StringBuffer("\uff21\uff22"),
86 new byte[] { -84, -19, 0, 5, 115, 114, 0, 22, 106, 97, 118, 97, 46, 108, 97, 110, 103, 46, 83, 116, 114, 105, 110, 103, 66, 117, 102,
87 102, 101, 114, 47, 7, 7, -39, -22, -56, -22, -45, 3, 0, 3, 73, 0, 5, 99, 111, 117, 110, 116, 90, 0, 6, 115, 104, 97, 114, 101,
88 100, 91, 0, 5, 118, 97, 108, 117, 101, 116, 0, 2, 91, 67, 120, 112, 0, 0, 0, 2, 0, 117, 114, 0, 2, 91, 67, -80, 38, 102, -80,
89 -30, 93, -124, -84, 2, 0, 0, 120, 112, 0, 0, 0, 18, -1, 33, -1, 34, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
90 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 120 } },
91 new Object[] {
92 new StringBuffer("\uff21A\uff21A\uff21A\uff21A\uff21A"),
93 new byte[] { -84, -19, 0, 5, 115, 114, 0, 22, 106, 97, 118, 97, 46, 108, 97, 110, 103, 46, 83, 116, 114, 105, 110, 103, 66, 117, 102,
94 102, 101, 114, 47, 7, 7, -39, -22, -56, -22, -45, 3, 0, 3, 73, 0, 5, 99, 111, 117, 110, 116, 90, 0, 6, 115, 104, 97, 114, 101,
95 100, 91, 0, 5, 118, 97, 108, 117, 101, 116, 0, 2, 91, 67, 120, 112, 0, 0, 0, 10, 0, 117, 114, 0, 2, 91, 67, -80, 38, 102, -80,
96 -30, 93, -124, -84, 2, 0, 0, 120, 112, 0, 0, 0, 26, -1, 33, 0, 65, -1, 33, 0, 65, -1, 33, 0, 65, -1, 33, 0, 65, -1, 33, 0, 65,
97 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 120 } },
98 new Object[] {
99 new StringBuffer("A\uff21B\uff22C\uff23D\uff24E\uff25F\uff26G\uff27H\uff28"),
100 new byte[] { -84, -19, 0, 5, 115, 114, 0, 22, 106, 97, 118, 97, 46, 108, 97, 110, 103, 46, 83, 116, 114, 105, 110, 103, 66, 117, 102,
101 102, 101, 114, 47, 7, 7, -39, -22, -56, -22, -45, 3, 0, 3, 73, 0, 5, 99, 111, 117, 110, 116, 90, 0, 6, 115, 104, 97, 114, 101,
102 100, 91, 0, 5, 118, 97, 108, 117, 101, 116, 0, 2, 91, 67, 120, 112, 0, 0, 0, 16, 0, 117, 114, 0, 2, 91, 67, -80, 38, 102, -80,
103 -30, 93, -124, -84, 2, 0, 0, 120, 112, 0, 0, 0, 32, 0, 65, -1, 33, 0, 66, -1, 34, 0, 67, -1, 35, 0, 68, -1, 36, 0, 69, -1, 37,
104 0, 70, -1, 38, 0, 71, -1, 39, 0, 72, -1, 40, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
105 0, 0, 0, 0, 0, 120 } },
106 new Object[] {
107 new StringBuffer("\uff21A\uff22B\uff23C\uff24D\uff25E\uff26F\uff27G\uff28H"),
108 new byte[] { -84, -19, 0, 5, 115, 114, 0, 22, 106, 97, 118, 97, 46, 108, 97, 110, 103, 46, 83, 116, 114, 105, 110, 103, 66, 117, 102,
109 102, 101, 114, 47, 7, 7, -39, -22, -56, -22, -45, 3, 0, 3, 73, 0, 5, 99, 111, 117, 110, 116, 90, 0, 6, 115, 104, 97, 114, 101,
110 100, 91, 0, 5, 118, 97, 108, 117, 101, 116, 0, 2, 91, 67, 120, 112, 0, 0, 0, 16, 0, 117, 114, 0, 2, 91, 67, -80, 38, 102, -80,
111 -30, 93, -124, -84, 2, 0, 0, 120, 112, 0, 0, 0, 32, -1, 33, 0, 65, -1, 34, 0, 66, -1, 35, 0, 67, -1, 36, 0, 68, -1, 37, 0, 69,
112 -1, 38, 0, 70, -1, 39, 0, 71, -1, 40, 0, 72, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
113 0, 0, 0, 0, 0, 120 } },
114 new Object[] {
115 new StringBuffer("\ud801\udc00\ud801\udc01\uff21A"),
116 new byte[] { -84, -19, 0, 5, 115, 114, 0, 22, 106, 97, 118, 97, 46, 108, 97, 110, 103, 46, 83, 116, 114, 105, 110, 103, 66, 117, 102,
117 102, 101, 114, 47, 7, 7, -39, -22, -56, -22, -45, 3, 0, 3, 73, 0, 5, 99, 111, 117, 110, 116, 90, 0, 6, 115, 104, 97, 114, 101,
118 100, 91, 0, 5, 118, 97, 108, 117, 101, 116, 0, 2, 91, 67, 120, 112, 0, 0, 0, 6, 0, 117, 114, 0, 2, 91, 67, -80, 38, 102, -80,
119 -30, 93, -124, -84, 2, 0, 0, 120, 112, 0, 0, 0, 22, -40, 1, -36, 0, -40, 1, -36, 1, -1, 33, 0, 65, 0, 0, 0, 0, 0, 0, 0, 0, 0,
120 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 120 } },
121 new Object[] {
122 new StringBuffer("\uff21\uff22\uff21\uff22\uff21\uff22\uff21\uff22\uff21\uff22"),
123 new byte[] { -84, -19, 0, 5, 115, 114, 0, 22, 106, 97, 118, 97, 46, 108, 97, 110, 103, 46, 83, 116, 114, 105, 110, 103, 66, 117, 102,
124 102, 101, 114, 47, 7, 7, -39, -22, -56, -22, -45, 3, 0, 3, 73, 0, 5, 99, 111, 117, 110, 116, 90, 0, 6, 115, 104, 97, 114, 101,
125 100, 91, 0, 5, 118, 97, 108, 117, 101, 116, 0, 2, 91, 67, 120, 112, 0, 0, 0, 10, 0, 117, 114, 0, 2, 91, 67, -80, 38, 102, -80,
126 -30, 93, -124, -84, 2, 0, 0, 120, 112, 0, 0, 0, 26, -1, 33, -1, 34, -1, 33, -1, 34, -1, 33, -1, 34, -1, 33, -1, 34, -1, 33, -1,
127 34, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 120 } } };
128 }
129
130 /*
131 * Verify serialization works between Compact StringBuffer/Legacy StringBuffer
132 */
133 @Test(dataProvider = "provider")
134 public void test(StringBuffer sbContent, byte[] baInJDK8) throws Exception {
135 // Serialize a StringBuffer object into byte array.
136 byte[] ba = serialize(sbContent);
137 assertEquals(ba, baInJDK8);
138 // Deserialize a StringBuffer object from byte array which is generated by previous JDK(build 1.8.0_45-b14).
139 Object obj = deserialize(ba);
140 assertEquals(obj.getClass(), StringBuffer.class);
141 assertTrue(equals((StringBuffer)obj, sbContent));
142 }
143
144 boolean equals(StringBuffer sb, StringBuffer expected) {
145 if(sb.length() == expected.length()
146 && sb.capacity() == expected.capacity()
147 && sb.toString().equals(expected.toString())) {
148 return true;
149 }
150 return false;
151 }
152 }