Tue, 03 Jun 2008 13:26:47 -0700
4075303: Use javap to enquire aboput a specific inner class
4348375: Javap is not internationalized
4459541: "javap -l" shows line numbers as signed short; they should be unsigned
4501660: change diagnostic of -help as 'print this help message and exit'
4776241: unused source file in javap...
4870651: javap should recognize generics, varargs, enum
4876942: javap invoked without args does not print help screen
4880663: javap could output whitespace between class name and opening brace
4975569: javap doesn't print new flag bits
6271787: javap dumps LocalVariableTypeTable attribute in hex, needs to print a table
6305779: javap: support annotations
6439940: Clean up javap implementation
6469569: wrong check of searchpath in JavapEnvironment
6474890: javap does not open .zip files in -classpath
6587786: Javap throws error : "ERROR:Could not find <classname>" for JRE classes
6622215: javap ignores certain relevant access flags
6622216: javap names some attributes incorrectly
6622232: javap gets whitespace confused
6622260: javap prints negative bytes incorrectly in hex
Reviewed-by: ksrini
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 */
24 /*
25 * @test
26 * @bug 6271787
27 * @summary javap dumps LocalVariableTypeTable attribute in hex, needs to print a table
28 */
30 import java.io.*;
32 public class T6271787 {
33 public static void main(String[] args) throws Exception {
34 new T6271787().run();
35 }
37 public void run() throws IOException {
38 File javaFile = writeTestFile();
39 File classFile = compileTestFile(javaFile);
41 verify(classFile,
42 "LocalVariableTypeTable:",
43 "0 5 0 this LTest<TT;>;" // should consider decoding this in javap
44 );
46 if (errors > 0)
47 throw new Error(errors + " found.");
48 }
50 File writeTestFile() throws IOException {
51 File f = new File("Test.java");
52 PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(f)));
53 out.println("class Test<T> { }");
54 out.close();
55 return f;
56 }
58 File compileTestFile(File f) {
59 int rc = com.sun.tools.javac.Main.compile(new String[] { "-g", f.getPath() });
60 if (rc != 0)
61 throw new Error("compilation failed. rc=" + rc);
62 String path = f.getPath();
63 return new File(path.substring(0, path.length() - 5) + ".class");
64 }
66 String javap(File f) {
67 StringWriter sw = new StringWriter();
68 PrintWriter out = new PrintWriter(sw);
69 int rc = com.sun.tools.javap.Main.run(new String[] { "-v", f.getPath() }, out);
70 if (rc != 0)
71 throw new Error("javap failed. rc=" + rc);
72 out.close();
73 return sw.toString();
74 }
76 void verify(File classFile, String... expects) {
77 String output = javap(classFile);
78 for (String expect: expects) {
79 if (output.indexOf(expect)< 0)
80 error(expect + " not found");
81 }
82 }
84 void error(String msg) {
85 System.err.println(msg);
86 errors++;
87 }
89 int errors;
90 }