1 /*
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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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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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22  */
23 
24 /*
25  * @test
26  * @bug 6622232
27  * @summary javap gets whitespace confused
28  * @modules jdk.jdeps/com.sun.tools.javap
29  */
30 
31 import java.io.*;
32 
33 public class T6622232 {
main(String[] args)34     public static void main(String[] args) throws Exception {
35         new T6622232().run();
36     }
37 
run()38     public void run() throws IOException {
39         File javaFile = writeTestFile();
40         File classFile = compileTestFile(javaFile);
41         String output = javap(classFile);
42 
43         // these are all examples of bad whitespace from old javap
44         verifyNot(output,
45                   "\\Q  Constant value: int 3Deprecated: true\\E",
46                   "^Deprecated: true",
47                   "\\Q   throws java.lang.Exception, java.lang.Error  Deprecated: true\\E"
48                );
49 
50         if (errors > 0)
51             throw new Error(errors + " found.");
52     }
53 
writeTestFile()54     File writeTestFile() throws IOException {
55         File f = new File("Test.java");
56         PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(f)));
57         out.println("class Test { ");
58         out.println("    @Deprecated static final int f1 = 3;");
59         out.println("    @Deprecated int f2;");
60         out.println("    @Deprecated void m() throws Exception, Error { }");
61         out.println("}");
62         out.close();
63         return f;
64     }
65 
compileTestFile(File f)66     File compileTestFile(File f) {
67         int rc = com.sun.tools.javac.Main.compile(new String[] { "-g", f.getPath() });
68         if (rc != 0)
69             throw new Error("compilation failed. rc=" + rc);
70         String path = f.getPath();
71         return new File(path.substring(0, path.length() - 5) + ".class");
72     }
73 
javap(File f)74     String javap(File f) {
75         StringWriter sw = new StringWriter();
76         PrintWriter out = new PrintWriter(sw);
77         int rc = com.sun.tools.javap.Main.run(new String[] { "-v", f.getPath() }, out);
78         if (rc != 0)
79             throw new Error("javap failed. rc=" + rc);
80         out.close();
81         System.out.println(sw.toString());
82         return sw.toString();
83     }
84 
verifyNot(String output, String... unexpects)85     void verifyNot(String output, String... unexpects) {
86         for (String unexpect: unexpects) {
87             if (output.matches(unexpect))
88                 error(unexpect + " unexpectedly found");
89         }
90     }
91 
error(String msg)92     void error(String msg) {
93         System.err.println(msg);
94         errors++;
95     }
96 
97     int errors;
98 }
99