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 }