test/tools/javap/T4880663.java

Tue, 03 Jun 2008 13:26:47 -0700

author
jjg
date
Tue, 03 Jun 2008 13:26:47 -0700
changeset 46
7708bd6d800d
child 65
0d4aa3c00af5
permissions
-rw-r--r--

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 4880663
    27  * @summary javap could output whitespace between class name and opening brace
    28  */
    31 import java.io.*;
    33 public class T4880663 {
    34     public static void main(String[] args) throws Exception {
    35         new T4880663().run();
    36     }
    38     public void run() throws IOException {
    39         File javaFile = writeTestFile();
    40         File classFile = compileTestFile(javaFile);
    41         verify(classFile, "class Test {");
    43         if (errors > 0)
    44             throw new Error(errors + " found.");
    45     }
    47     File writeTestFile() throws IOException {
    48         File f = new File("Test.java");
    49         PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(f)));
    50         out.println("class Test { }");
    51         out.close();
    52         return f;
    53     }
    55     File compileTestFile(File f) {
    56         int rc = com.sun.tools.javac.Main.compile(new String[] { "-g", f.getPath() });
    57         if (rc != 0)
    58             throw new Error("compilation failed. rc=" + rc);
    59         String path = f.getPath();
    60         return new File(path.substring(0, path.length() - 5) + ".class");
    61     }
    63     String javap(File classFile) {
    64         StringWriter sw = new StringWriter();
    65         PrintWriter out = new PrintWriter(sw);
    66         int rc = com.sun.tools.javap.Main.run(new String[] { classFile.getPath() }, out);
    67         if (rc != 0)
    68             throw new Error("javap failed. rc=" + rc);
    69         out.close();
    70         System.out.println(sw.toString());
    71         return sw.toString();
    72     }
    74     void verify(File classFile, String... expects) {
    75         String output = javap(classFile);
    76         for (String expect: expects) {
    77             if (output.indexOf(expect)< 0)
    78                 error(expect + " not found");
    79         }
    80     }
    82     void error(String msg) {
    83         System.err.println(msg);
    84         errors++;
    85     }
    87     int errors;
    88 }

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