jdk8-mips64-public/hotspot: test/runtime/classFileParserBug/emptySigUtf8.jcod@9d07e8518392

8042660: vm/mlvm/anonloader/stress/byteMutation failed with: assert(index >=0 && index < _length) failed: symbol index overflow
Summary: Detect zero length signatures and throw ClassFormatError before bad dereference occurs
Reviewed-by: hseigel

     1 /*

     2  * Copyright (c) 2016, 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  */

    25 // This class has an illegal NameAndType at constant pool #4.  It's illegal because

    26 // the type that it points to at #28 is a zero length Utf8 string which is not a

    27 // valid signature.  Loading this class should cause a ClassFormatError exception.

    28 class emptySigUtf8 {

    29   0xCAFEBABE;

    30   0; // minor version

    31   52; // version

    32   [29] { // Constant Pool

    33     ; // first element is empty

    34     Method #6 #15; // #1     at 0x0A

    35     Field #16 #17; // #2     at 0x0F

    36     String #18; // #3     at 0x14

    37     NameAndType #27 #28; // #4     at 0x9F

    38     class #21; // #5     at 0x1C

    39     class #22; // #6     at 0x1F

    40     Utf8 "<init>"; // #7     at 0x22

    41     Utf8 "()V"; // #8     at 0x2B

    42     Utf8 "Code"; // #9     at 0x2E

    43     Utf8 "LineNumberTable"; // #10     at 0x35

    44     Utf8 "main"; // #11     at 0x47

    45     Utf8 "([Ljava/lang/String;)V"; // #12     at 0x4E

    46     Utf8 "SourceFile"; // #13     at 0x67

    47     Utf8 "emptySigUtf8.java"; // #14     at 0x74

    48     NameAndType #7 #8; // #15     at 0x81

    49     class #23; // #16     at 0x86

    50     NameAndType #24 #25; // #17     at 0x89

    51     Utf8 "Hello World"; // #18     at 0x8E

    52     class #26; // #19     at 0x9C

    53     Method #19 #4; // #20     at 0x17

    54     Utf8 "emptySigUtf8"; // #21     at 0xA4

    55     Utf8 "java/lang/Object"; // #22     at 0xAC

    56     Utf8 "java/lang/System"; // #23     at 0xBF

    57     Utf8 "out"; // #24     at 0xD2

    58     Utf8 "Ljava/io/PrintStream;"; // #25     at 0xD8

    59     Utf8 "java/io/PrintStream"; // #26     at 0xF0

    60     Utf8 "hi"; // #27     at 0x0106

    61     Utf8 ""; // #28     at 0x0110

    62   } // Constant Pool

    64   0x0021; // access

    65   #5;// this_cpx

    66   #6;// super_cpx

    68   [0] { // Interfaces

    69   } // Interfaces

    71   [0] { // fields

    72   } // fields

    74   [2] { // methods

    75     { // Member at 0x0134

    76       0x0001; // access

    77       #7; // name_cpx

    78       #8; // sig_cpx

    79       [1] { // Attributes

    80         Attr(#9, 29) { // Code at 0x013C

    81           1; // max_stack

    82           1; // max_locals

    83           Bytes[5]{

    84             0x2AB70001B1;

    85           };

    86           [0] { // Traps

    87           } // end Traps

    88           [1] { // Attributes

    89             Attr(#10, 6) { // LineNumberTable at 0x0153

    90               [1] { // LineNumberTable

    91                 0  2; //  at 0x015F

    92               }

    93             } // end LineNumberTable

    94           } // Attributes

    95         } // end Code

    96       } // Attributes

    97     } // Member

    98     ;

    99     { // Member at 0x015F

   100       0x0009; // access

   101       #11; // name_cpx

   102       #12; // sig_cpx

   103       [1] { // Attributes

   104         Attr(#9, 37) { // Code at 0x0167

   105           2; // max_stack

   106           1; // max_locals

   107           Bytes[9]{

   108             0xB200021203B60004;

   109             0xB1;

   110           };

   111           [0] { // Traps

   112           } // end Traps

   113           [1] { // Attributes

   114             Attr(#10, 10) { // LineNumberTable at 0x0182

   115               [2] { // LineNumberTable

   116                 0  4; //  at 0x018E

   117                 8  5; //  at 0x0192

   118               }

   119             } // end LineNumberTable

   120           } // Attributes

   121         } // end Code

   122       } // Attributes

   123     } // Member

   124   } // methods

   126   [1] { // Attributes

   127     Attr(#13, 2) { // SourceFile at 0x0194

   128       #14;

   129     } // end SourceFile

   130   } // Attributes

   131 } // end class emptySigUtf8

Mercurial > jdk8-mips64-public > hotspot / file revision

test/runtime/classFileParserBug/emptySigUtf8.jcod@9d07e8518392

test/runtime/classFileParserBug/emptySigUtf8.jcod