Sat, 22 Dec 2018 13:10:38 -0800
Added tag jdk8u202-b25 for changeset 15d8c732039b
1 /*
2 * Copyright (c) 2014, 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
26 /*
27 * @test
28 * @bug 8061778
29 * @summary Wrong LineNumberTable for default constructors
30 */
32 import com.sun.tools.classfile.ClassFile;
33 import com.sun.tools.classfile.ConstantPoolException;
34 import com.sun.tools.classfile.Method;
35 import com.sun.tools.classfile.Attribute;
36 import com.sun.tools.classfile.Code_attribute;
37 import com.sun.tools.classfile.LineNumberTable_attribute;
38 import com.sun.tools.classfile.LineNumberTable_attribute.Entry;
40 import java.io.IOException;
42 public class NestedLineNumberTest {
44 public static void main(String[] args) throws Exception {
45 Entry[] lines = findEntries();
46 if (lines == null || lines.length != 1) {
47 int found = lines == null ? 0 : lines.length;
48 error(String.format("LineNumberTable contains wrong number of entries - expected %d, found %d", 1, found));
49 }
51 int line = lines[0].line_number;
52 if (line != 78) {
53 error(String.format("LineNumberTable contains wrong line number - expected %d, found %d", 78, line));
54 }
55 }
57 static Entry[] findEntries() throws IOException, ConstantPoolException {
58 ClassFile self = ClassFile.read(NestedLineNumberTest.Test.class.getResourceAsStream("NestedLineNumberTest$Test.class"));
59 for (Method m : self.methods) {
60 if ("<init>".equals(m.getName(self.constant_pool))) {
61 Code_attribute code_attribute = (Code_attribute)m.attributes.get(Attribute.Code);
62 for (Attribute at : code_attribute.attributes) {
63 if (Attribute.LineNumberTable.equals(at.getName(self.constant_pool))) {
64 return ((LineNumberTable_attribute)at).line_number_table;
65 }
66 }
67 }
68 }
69 return null;
70 }
72 static void error(String msg) {
73 throw new AssertionError(msg);
74 }
76 // The default constructor in this class should get only one LineNumberTable entry,
77 // pointing to the first line of the declaration of class Test.
78 static class Test {
79 static class Empty { }
80 }
81 }