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3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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5  * This code is free software; you can redistribute it and/or modify it
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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
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23 
24 import java.io.*;
25 import java.util.*;
26 
27 /*
28  * @test
29  * @bug 4501661
30  * @summary disallow mixing -public, -private, and -protected
31  * @modules jdk.jdeps/com.sun.tools.javap
32  */
33 public class T4501661 {
main(String... args)34     public static void main(String... args) throws Exception {
35         new T4501661().run();
36     }
37 
run()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 
test(boolean pack, boolean priv, boolean prot, boolean publ, File classFile)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 
writeTestFile()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 
compileTestFile(File f)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 
javap(List<String> args, boolean expectOK)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 
checkNone(String log, String... words)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 
error(String msg)125     void error(String msg) {
126         System.err.println("error: " + msg);
127         errors++;
128     }
129 
130     int errors;
131 }
132