T4111861.java revision 86:fd1d361ae294 
1/*
2 * Copyright 2008 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 */
23
24import java.io.*;
25
26/*
27 * @test
28 * @bug 4111861
29 * @summary static final field contents are not displayed
30 */
31public class T4111861 {
32    public static void main(String... args) throws Exception {
33        new T4111861().run();
34    }
35
36    void run() throws Exception {
37        File testSrc = new File(System.getProperty("test.src", "."));
38        File a_java = new File(testSrc, "A.java");
39        javac("-d", ".", a_java.getPath());
40
41        String out = javap("-classpath", ".", "-constants", "A");
42
43        String a = read(a_java);
44
45        if (!filter(out).equals(filter(read(a_java)))) {
46            System.out.println(out);
47            throw new Exception("unexpected output");
48        }
49    }
50
51    String javac(String... args) throws Exception {
52        StringWriter sw = new StringWriter();
53        PrintWriter pw = new PrintWriter(sw);
54        int rc = com.sun.tools.javac.Main.compile(args, pw);
55        if (rc != 0)
56            throw new Exception("javac failed, rc=" + rc);
57        return sw.toString();
58    }
59
60    String javap(String... args) throws Exception {
61        StringWriter sw = new StringWriter();
62        PrintWriter pw = new PrintWriter(sw);
63        int rc = com.sun.tools.javap.Main.run(args, pw);
64        if (rc != 0)
65            throw new Exception("javap failed, rc=" + rc);
66        return sw.toString();
67    }
68
69    String read(File f) throws IOException {
70        StringBuilder sb = new StringBuilder();
71        BufferedReader in = new BufferedReader(new FileReader(f));
72        try {
73            String line;
74            while ((line = in.readLine()) != null) {
75                sb.append(line);
76                sb.append('\n');
77            }
78        } finally {
79            in.close();
80        }
81        return sb.toString();
82    }
83
84    // return those lines beginning "public static final"
85    String filter(String s) throws IOException {
86        StringBuilder sb = new StringBuilder();
87        BufferedReader in = new BufferedReader(new StringReader(s));
88        try {
89            String line;
90            while ((line = in.readLine()) != null) {
91                if (line.indexOf("public static final") > 0) {
92                    sb.append(line);
93                    sb.append('\n');
94                }
95            }
96        } finally {
97            in.close();
98        }
99        return sb.toString();
100    }
101}
102