1 /*

     2  * Copyright (c) 2012, 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 6294277

    27  * @summary java -Xdebug crashes on SourceDebugExtension attribute larger than 64K

    28  */

    29 import java.io.*;

    30 

    31 public class SourceDebugExtension extends ClassLoader

    32 {

    33     static final int attrSize = 68000;

    34     static byte[] header = {

    35 (byte)0xca, (byte)0xfe, (byte)0xba, (byte)0xbe, (byte)0x00, (byte)0x00, (byte)0x00,

    36 (byte)0x32, (byte)0x00, (byte)0x1e, (byte)0x0a, (byte)0x00, (byte)0x06, (byte)0x00,

    37 (byte)0x0f, (byte)0x09, (byte)0x00, (byte)0x10, (byte)0x00, (byte)0x11, (byte)0x08,

    38 (byte)0x00, (byte)0x12, (byte)0x0a, (byte)0x00, (byte)0x13, (byte)0x00, (byte)0x14,

    39 (byte)0x07, (byte)0x00, (byte)0x15, (byte)0x07, (byte)0x00, (byte)0x16, (byte)0x01,

    40 (byte)0x00, (byte)0x06, (byte)0x3c, (byte)0x69, (byte)0x6e, (byte)0x69, (byte)0x74,

    41 (byte)0x3e, (byte)0x01, (byte)0x00, (byte)0x03, (byte)0x28, (byte)0x29, (byte)0x56,

    42 (byte)0x01, (byte)0x00, (byte)0x04, (byte)0x43, (byte)0x6f, (byte)0x64, (byte)0x65,

    43 (byte)0x01, (byte)0x00, (byte)0x0f, (byte)0x4c, (byte)0x69, (byte)0x6e, (byte)0x65,

    44 (byte)0x4e, (byte)0x75, (byte)0x6d, (byte)0x62, (byte)0x65, (byte)0x72, (byte)0x54,

    45 (byte)0x61, (byte)0x62, (byte)0x6c, (byte)0x65, (byte)0x01, (byte)0x00, (byte)0x04,

    46 (byte)0x6d, (byte)0x61, (byte)0x69, (byte)0x6e, (byte)0x01, (byte)0x00, (byte)0x16,

    47 (byte)0x28, (byte)0x5b, (byte)0x4c, (byte)0x6a, (byte)0x61, (byte)0x76, (byte)0x61,

    48 (byte)0x2f, (byte)0x6c, (byte)0x61, (byte)0x6e, (byte)0x67, (byte)0x2f, (byte)0x53,

    49 (byte)0x74, (byte)0x72, (byte)0x69, (byte)0x6e, (byte)0x67, (byte)0x3b, (byte)0x29,

    50 (byte)0x56, (byte)0x01, (byte)0x00, (byte)0x0a, (byte)0x53, (byte)0x6f, (byte)0x75,

    51 (byte)0x72, (byte)0x63, (byte)0x65, (byte)0x46, (byte)0x69, (byte)0x6c, (byte)0x65,

    52 (byte)0x01, (byte)0x00, (byte)0x0d, (byte)0x54, (byte)0x65, (byte)0x73, (byte)0x74,

    53 (byte)0x50, (byte)0x72, (byte)0x6f, (byte)0x67, (byte)0x2e, (byte)0x6a, (byte)0x61,

    54 (byte)0x76, (byte)0x61, (byte)0x0c, (byte)0x00, (byte)0x07, (byte)0x00, (byte)0x08,

    55 (byte)0x07, (byte)0x00, (byte)0x17, (byte)0x0c, (byte)0x00, (byte)0x18, (byte)0x00,

    56 (byte)0x19, (byte)0x01, (byte)0x00, (byte)0x34, (byte)0x54, (byte)0x65, (byte)0x73,

    57 (byte)0x74, (byte)0x20, (byte)0x70, (byte)0x72, (byte)0x6f, (byte)0x67, (byte)0x72,

    58 (byte)0x61, (byte)0x6d, (byte)0x20, (byte)0x66, (byte)0x6f, (byte)0x72, (byte)0x20,

    59 (byte)0x62, (byte)0x69, (byte)0x67, (byte)0x20, (byte)0x53, (byte)0x6f, (byte)0x75,

    60 (byte)0x72, (byte)0x63, (byte)0x65, (byte)0x44, (byte)0x65, (byte)0x62, (byte)0x75,

    61 (byte)0x67, (byte)0x45, (byte)0x78, (byte)0x74, (byte)0x65, (byte)0x6e, (byte)0x73,

    62 (byte)0x69, (byte)0x6f, (byte)0x6e, (byte)0x20, (byte)0x61, (byte)0x74, (byte)0x74,

    63 (byte)0x72, (byte)0x69, (byte)0x62, (byte)0x75, (byte)0x74, (byte)0x65, (byte)0x73,

    64 (byte)0x07, (byte)0x00, (byte)0x1a, (byte)0x0c, (byte)0x00, (byte)0x1b, (byte)0x00,

    65 (byte)0x1c, (byte)0x01, (byte)0x00, (byte)0x08, (byte)0x54, (byte)0x65, (byte)0x73,

    66 (byte)0x74, (byte)0x50, (byte)0x72, (byte)0x6f, (byte)0x67, (byte)0x01, (byte)0x00,

    67 (byte)0x10, (byte)0x6a, (byte)0x61, (byte)0x76, (byte)0x61, (byte)0x2f, (byte)0x6c,

    68 (byte)0x61, (byte)0x6e, (byte)0x67, (byte)0x2f, (byte)0x4f, (byte)0x62, (byte)0x6a,

    69 (byte)0x65, (byte)0x63, (byte)0x74, (byte)0x01, (byte)0x00, (byte)0x10, (byte)0x6a,

    70 (byte)0x61, (byte)0x76, (byte)0x61, (byte)0x2f, (byte)0x6c, (byte)0x61, (byte)0x6e,

    71 (byte)0x67, (byte)0x2f, (byte)0x53, (byte)0x79, (byte)0x73, (byte)0x74, (byte)0x65,

    72 (byte)0x6d, (byte)0x01, (byte)0x00, (byte)0x03, (byte)0x6f, (byte)0x75, (byte)0x74,

    73 (byte)0x01, (byte)0x00, (byte)0x15, (byte)0x4c, (byte)0x6a, (byte)0x61, (byte)0x76,

    74 (byte)0x61, (byte)0x2f, (byte)0x69, (byte)0x6f, (byte)0x2f, (byte)0x50, (byte)0x72,

    75 (byte)0x69, (byte)0x6e, (byte)0x74, (byte)0x53, (byte)0x74, (byte)0x72, (byte)0x65,

    76 (byte)0x61, (byte)0x6d, (byte)0x3b, (byte)0x01, (byte)0x00, (byte)0x13, (byte)0x6a,

    77 (byte)0x61, (byte)0x76, (byte)0x61, (byte)0x2f, (byte)0x69, (byte)0x6f, (byte)0x2f,

    78 (byte)0x50, (byte)0x72, (byte)0x69, (byte)0x6e, (byte)0x74, (byte)0x53, (byte)0x74,

    79 (byte)0x72, (byte)0x65, (byte)0x61, (byte)0x6d, (byte)0x01, (byte)0x00, (byte)0x07,

    80 (byte)0x70, (byte)0x72, (byte)0x69, (byte)0x6e, (byte)0x74, (byte)0x6c, (byte)0x6e,

    81 (byte)0x01, (byte)0x00, (byte)0x15, (byte)0x28, (byte)0x4c, (byte)0x6a, (byte)0x61,

    82 (byte)0x76, (byte)0x61, (byte)0x2f, (byte)0x6c, (byte)0x61, (byte)0x6e, (byte)0x67,

    83 (byte)0x2f, (byte)0x53, (byte)0x74, (byte)0x72, (byte)0x69, (byte)0x6e, (byte)0x67,

    84 (byte)0x3b, (byte)0x29, (byte)0x56, (byte)0x01, (byte)0x00, (byte)0x14, (byte)0x53,

    85 (byte)0x6f, (byte)0x75, (byte)0x72, (byte)0x63, (byte)0x65, (byte)0x44, (byte)0x65,

    86 (byte)0x62, (byte)0x75, (byte)0x67, (byte)0x45, (byte)0x78, (byte)0x74, (byte)0x65,

    87 (byte)0x6e, (byte)0x73, (byte)0x69, (byte)0x6f, (byte)0x6e, (byte)0x00, (byte)0x21,

    88 (byte)0x00, (byte)0x05, (byte)0x00, (byte)0x06, (byte)0x00, (byte)0x00, (byte)0x00,

    89 (byte)0x00, (byte)0x00, (byte)0x02, (byte)0x00, (byte)0x01, (byte)0x00, (byte)0x07,

    90 (byte)0x00, (byte)0x08, (byte)0x00, (byte)0x01, (byte)0x00, (byte)0x09, (byte)0x00,

    91 (byte)0x00, (byte)0x00, (byte)0x1d, (byte)0x00, (byte)0x01, (byte)0x00, (byte)0x01,

    92 (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x05, (byte)0x2a, (byte)0xb7, (byte)0x00,

    93 (byte)0x01, (byte)0xb1, (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x01, (byte)0x00,

    94 (byte)0x0a, (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x06, (byte)0x00, (byte)0x01,

    95 (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x01, (byte)0x00, (byte)0x09, (byte)0x00,

    96 (byte)0x0b, (byte)0x00, (byte)0x0c, (byte)0x00, (byte)0x01, (byte)0x00, (byte)0x09,

    97 (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x25, (byte)0x00, (byte)0x02, (byte)0x00,

    98 (byte)0x01, (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x09, (byte)0xb2, (byte)0x00,

    99 (byte)0x02, (byte)0x12, (byte)0x03, (byte)0xb6, (byte)0x00, (byte)0x04, (byte)0xb1,

   100 (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x01, (byte)0x00, (byte)0x0a, (byte)0x00,

   101 (byte)0x00, (byte)0x00, (byte)0x0a, (byte)0x00, (byte)0x02, (byte)0x00, (byte)0x00,

   102 (byte)0x00, (byte)0x03, (byte)0x00, (byte)0x08, (byte)0x00, (byte)0x04, (byte)0x00,

   103 (byte)0x02, (byte)0x00, (byte)0x0d, (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x02,

   104 (byte)0x00, (byte)0x0e, (byte)0x00, (byte)0x1d, (byte)0x00, (byte)0x01, (byte)0x09,

   105 (byte)0xa0

   106   };

   107 

   108     public static void main(String[] args) throws Exception

   109     {

   110         try {

   111             SourceDebugExtension loader = new SourceDebugExtension();

   112             /* The test program creates a class file from the header

   113              * stored above and adding the content of a SourceDebugExtension

   114              * attribute made of the character 0x02 repeated 68000 times.

   115              * This attribute doesn't follow the syntax specified in JSR 45

   116              * but it's fine because this test just checks that the JVM is

   117              * able to load a class file with a SourceDebugExtension

   118              * attribute bigger than 64KB. The JVM doesn't try to

   119              * parse the content of the attribute, this work is performed

   120              * by the SA or external tools.

   121              */

   122             byte[] buf = new byte[header.length + attrSize];

   123             for(int i=0; i<header.length; i++) {

   124                 buf[i] = header[i];

   125             }

   126             for(int i=0; i<attrSize; i++) {

   127                 buf[header.length+i] = (byte)0x02;

   128             }

   129             Class c = loader.defineClass("TestProg", buf, 0, buf.length);

   130             System.out.println("Test PASSES");

   131         } catch(Exception e) {

   132             System.out.println("Test FAILS");

   133         }

   134     }

   135 }