T6622232.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
24/*
25 * @test
26 * @bug 6622232
27 * @summary javap gets whitespace confused
28 * @modules jdk.jdeps
29 */
30
31import java.io.*;
32
33public class T6622232 {
34    public static void main(String[] args) throws Exception {
35        new T6622232().run();
36    }
37
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
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
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
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
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
92    void error(String msg) {
93        System.err.println(msg);
94        errors++;
95    }
96
97    int errors;
98}
99