1 /*
2 * Copyright (c) 2022, 2024, 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 // This is an abstract class that cannot be a super class for value classes
26 // because ACC_IDENTITY is set in its class access flags.
27 // It's based on the following source:
28 /*
29 public abstract class NonPVSuper {
30
31 static int x = 3;
32
33 public static void meth() {
34 System.out.println("hi");
35 }
36 }
37 */
38 class NonPVSuper {
39 0xCAFEBABE;
40 0; // minor version
41 66; // version
42 [33] { // Constant Pool
43 ; // first element is empty
44 Method #2 #3; // #1 at 0x0A
45 class #4; // #2 at 0x0F
46 NameAndType #5 #6; // #3 at 0x12
47 Utf8 "java/lang/Object"; // #4 at 0x17
48 Utf8 "<init>"; // #5 at 0x2A
49 Utf8 "()V"; // #6 at 0x33
50 Field #8 #9; // #7 at 0x39
51 class #10; // #8 at 0x3E
52 NameAndType #11 #12; // #9 at 0x41
53 Utf8 "java/lang/System"; // #10 at 0x46
54 Utf8 "out"; // #11 at 0x59
55 Utf8 "Ljava/io/PrintStream;"; // #12 at 0x5F
56 String #14; // #13 at 0x77
57 Utf8 "hi"; // #14 at 0x7A
58 Method #16 #17; // #15 at 0x7F
59 class #18; // #16 at 0x84
60 NameAndType #19 #20; // #17 at 0x87
61 Utf8 "java/io/PrintStream"; // #18 at 0x8C
62 Utf8 "println"; // #19 at 0xA2
63 Utf8 "(Ljava/lang/String;)V"; // #20 at 0xAC
64 Field #22 #23; // #21 at 0xC4
65 class #24; // #22 at 0xC9
66 NameAndType #25 #26; // #23 at 0xCC
67 Utf8 "NonPVSuper"; // #24 at 0xD1
68 Utf8 "x"; // #25 at 0xDE
69 Utf8 "I"; // #26 at 0xE2
70 Utf8 "Code"; // #27 at 0xE6
71 Utf8 "LineNumberTable"; // #28 at 0xED
72 Utf8 "meth"; // #29 at 0xFF
73 Utf8 "<clinit>"; // #30 at 0x0106
74 Utf8 "SourceFile"; // #31 at 0x0111
75 Utf8 "NonPVSuper.java"; // #32 at 0x011E
76 } // Constant Pool
77
78 0x0421; // access [ ACC_PUBLIC ACC_IDENTITY ACC_ABSTRACT ]
79 #22;// this_cpx
80 #2;// super_cpx
81
82 [0] { // Interfaces
83 } // Interfaces
84
85 [1] { // Fields
86 { // field at 0x013A
87 0x0008; // access
88 #25; // name_index : x
89 #26; // descriptor_index : I
90 [0] { // Attributes
91 } // Attributes
92 }
93 } // Fields
94
95 [3] { // Methods
96 { // method at 0x0144
97 0x0001; // access
98 #5; // name_index : <init>
99 #6; // descriptor_index : ()V
100 [1] { // Attributes
101 Attr(#27, 29) { // Code at 0x014C
102 1; // max_stack
103 1; // max_locals
104 Bytes[5]{
105 0x2AB70001B1;
106 }
107 [0] { // Traps
108 } // end Traps
109 [1] { // Attributes
110 Attr(#28, 6) { // LineNumberTable at 0x0163
111 [1] { // line_number_table
112 0 2; // at 0x016F
113 }
114 } // end LineNumberTable
115 } // Attributes
116 } // end Code
117 } // Attributes
118 }
119 ;
120 { // method at 0x016F
121 0x0009; // access
122 #29; // name_index : meth
123 #6; // descriptor_index : ()V
124 [1] { // Attributes
125 Attr(#27, 37) { // Code at 0x0177
126 2; // max_stack
127 0; // max_locals
128 Bytes[9]{
129 0xB20007120DB6000F;
130 0xB1;
131 }
132 [0] { // Traps
133 } // end Traps
134 [1] { // Attributes
135 Attr(#28, 10) { // LineNumberTable at 0x0192
136 [2] { // line_number_table
137 0 7; // at 0x019E
138 8 8; // at 0x01A2
139 }
140 } // end LineNumberTable
141 } // Attributes
142 } // end Code
143 } // Attributes
144 }
145 ;
146 { // method at 0x01A2
147 0x0008; // access
148 #30; // name_index : <clinit>
149 #6; // descriptor_index : ()V
150 [1] { // Attributes
151 Attr(#27, 29) { // Code at 0x01AA
152 1; // max_stack
153 0; // max_locals
154 Bytes[5]{
155 0x06B30015B1;
156 }
157 [0] { // Traps
158 } // end Traps
159 [1] { // Attributes
160 Attr(#28, 6) { // LineNumberTable at 0x01C1
161 [1] { // line_number_table
162 0 4; // at 0x01CD
163 }
164 } // end LineNumberTable
165 } // Attributes
166 } // end Code
167 } // Attributes
168 }
169 } // Methods
170
171 [1] { // Attributes
172 Attr(#31, 2) { // SourceFile at 0x01CF
173 #32;
174 } // end SourceFile
175 } // Attributes
176 } // end class NonPVSuper
177
178
179 // Dot is a value class that tries to inherit from a super class (NonPVSuper)
180 // that has access flag ACC_IDENTITY set.
181 // Dot is based on the following source:
182 /*
183 public value final class Dot extends NonPVSuper {
184 int x = 3;
185
186 public int getX() {
187 return x;
188 }
189 }
190 */
191 class Dot {
192 0xCAFEBABE;
193 0; // minor version
194 66; // version
195 [18] { // Constant Pool
196 ; // first element is empty
197 class #2; // #1 at 0x0A
198 Utf8 "Dot"; // #2 at 0x0D
199 Field #1 #4; // #3 at 0x13
200 NameAndType #5 #6; // #4 at 0x18
201 Utf8 "x"; // #5 at 0x1D
202 Utf8 "I"; // #6 at 0x21
203 class #8; // #7 at 0x25
204 Utf8 "NonPVSuper"; // #8 at 0x28
205 Utf8 "getX"; // #9 at 0x35
206 Utf8 "()I"; // #10 at 0x3C
207 Utf8 "Code"; // #11 at 0x42
208 Utf8 "LineNumberTable"; // #12 at 0x49
209 Utf8 "<vnew>"; // #13 at 0x5B
210 Utf8 "()LDot;"; // #14 at 0x64
211 Utf8 "SourceFile"; // #15 at 0x6E
212 Utf8 "Dot.java"; // #16 at 0x7B
213 Utf8 "Preload"; // #17 at 0x86
214 } // Constant Pool
215
216 0x0051; // access [ ACC_VALUE ACC_PUBLIC ACC_FINAL ]
217 #1;// this_cpx
218 #7;// super_cpx
219
220 [0] { // Interfaces
221 } // Interfaces
222
223 [1] { // Fields
224 { // field at 0x9A
225 0x0010; // access
226 #5; // name_index : x
227 #6; // descriptor_index : I
228 [0] { // Attributes
229 } // Attributes
230 }
231 } // Fields
232
233 [2] { // Methods
234 { // method at 0xA4
235 0x0001; // access
236 #9; // name_index : getX
237 #10; // descriptor_index : ()I
238 [1] { // Attributes
239 Attr(#11, 29) { // Code at 0xAC
240 1; // max_stack
241 1; // max_locals
242 Bytes[5]{
243 0x2AB40003AC;
244 }
245 [0] { // Traps
246 } // end Traps
247 [1] { // Attributes
248 Attr(#12, 6) { // LineNumberTable at 0xC3
249 [1] { // line_number_table
250 0 5; // at 0xCF
251 }
252 } // end LineNumberTable
253 } // Attributes
254 } // end Code
255 } // Attributes
256 }
257 ;
258 { // method at 0xCF
259 0x0009; // access
260 #13; // name_index : <vnew>
261 #14; // descriptor_index : ()LDot;
262 [1] { // Attributes
263 Attr(#11, 41) { // Code at 0xD7
264 2; // max_stack
265 1; // max_locals
266 Bytes[13]{
267 0xCB00014B062A5FCC;
268 0x00034B2AB0;
269 }
270 [0] { // Traps
271 } // end Traps
272 [1] { // Attributes
273 Attr(#12, 10) { // LineNumberTable at 0xF6
274 [2] { // line_number_table
275 0 1; // at 0x0102
276 4 2; // at 0x0106
277 }
278 } // end LineNumberTable
279 } // Attributes
280 } // end Code
281 } // Attributes
282 }
283 } // Methods
284
285 [2] { // Attributes
286 Attr(#15, 2) { // SourceFile at 0x0108
287 #16;
288 } // end SourceFile
289 ;
290 Attr(#17, 4) { // Preload at 0x0110
291 0x00010001;
292 } // end Preload
293 } // Attributes
294 } // end class Dot