T4501661.java revision 2942:08092deced3f 
1/*
2 * Copyright (c) 2008, 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
24import java.io.*;
25import java.util.*;
26
27/*
28 * @test
29 * @bug 4501661
30 * @summary disallow mixing -public, -private, and -protected
31 * @modules jdk.jdeps
32 */
33public class T4501661 {
34    public static void main(String... args) throws Exception {
35        new T4501661().run();
36    }
37
38    void run() throws Exception {
39        File javaFile = writeTestFile();
40        File classFile = compileTestFile(javaFile);
41        boolean[] values = { false, true };
42        for (boolean pack : values) {
43            for (boolean priv : values) {
44                for (boolean prot : values) {
45                    for (boolean publ : values) {
46                        test(pack, priv, prot, publ, classFile);
47                    }
48                }
49            }
50        }
51
52        if (errors > 0)
53            throw new Exception(errors + " errors found");
54    }
55
56    void test(boolean pack, boolean priv, boolean prot, boolean publ, File classFile) {
57        List<String> args = new ArrayList<String>();
58        if (pack)
59            args.add("-package");
60        if (priv)
61            args.add("-private");
62        if (prot)
63            args.add("-protected");
64        if (publ)
65            args.add("-public");
66        boolean expectOK = (args.size() <= 1);
67        args.add(classFile.getPath());
68        String out = javap(args, expectOK);
69        if (out == null)
70            return;
71        if (!priv && !prot && !publ)
72            checkNone(out, "private");
73        if (prot)
74            checkNone(out, "private", "package");
75        if (publ)
76            checkNone(out, "private", "package", "protected");
77    }
78
79    File writeTestFile() throws IOException {
80        File f = new File("Test.java");
81        PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(f)));
82        out.println("abstract class Test { ");
83        out.println("  public void public_m() { }");
84        out.println("  protected void protected_m() { }");
85        out.println("  private void private_m() { }");
86        out.println("  void package_m() { }");
87        out.println("}");
88        out.close();
89        return f;
90    }
91
92    File compileTestFile(File f) {
93        int rc = com.sun.tools.javac.Main.compile(new String[] { "-g", f.getPath() });
94        if (rc != 0)
95            throw new Error("compilation failed. rc=" + rc);
96        String path = f.getPath();
97        return new File(path.substring(0, path.length() - 5) + ".class");
98    }
99
100    String javap(List<String> args, boolean expectOK) {
101        StringWriter sw = new StringWriter();
102        PrintWriter pw = new PrintWriter(sw);
103        int rc = com.sun.tools.javap.Main.run(args.toArray(new String[args.size()]), pw);
104        System.err.println(args);
105        System.err.println(sw);
106        if (expectOK) {
107            if (rc == 0)
108                return sw.toString();
109            else
110                error("javap failed unexpectedly; rc=" + rc + "\n" + sw);
111        } else {
112            if (rc == 0)
113                error("javap succeeded unexpectedly");
114        }
115        return null;
116    }
117
118    void checkNone(String log, String... words) {
119        for (String word: words) {
120            if (log.indexOf(word) != -1)
121                error("\"" + word + "\" unexpectedly found in output");
122        }
123    }
124
125    void error(String msg) {
126        System.err.println("error: " + msg);
127        errors++;
128    }
129
130    int errors;
131}
132