Mercurial > hg > truffle
view src/share/tools/ProjectCreator/MacroDefinitions.java @ 2085:ef3c5db0b3ae
7008165: Garbage in ClassFormatError message
Summary: When bootstrap_method_ref in BootstrapMethods attribute points to a wrong CP entry (non-MethodHandle), JVM throws ClassFormatError with a message, where method index and class file name is garbage.
Reviewed-by: iveresov
author | twisti |
---|---|
date | Tue, 21 Dec 2010 04:37:30 -0800 |
parents | f95d63e2154a |
children |
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/* * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ import java.io.*; import java.util.*; public class MacroDefinitions { private Vector macros; public MacroDefinitions() { macros = new Vector(); } public void addMacro(String name, String contents) { Macro macro = new Macro(); macro.name = name; macro.contents = contents; macros.add(macro); } private boolean lineIsEmpty(String s) { for (int i = 0; i < s.length(); i++) { if (!Character.isWhitespace(s.charAt(i))) { return false; } } return true; } public void readFrom(String fileName, boolean missingOk) throws FileNotFoundException, FileFormatException, IOException { BufferedReader reader = null; try { reader = new BufferedReader(new FileReader(fileName)); } catch (FileNotFoundException e) { if (missingOk) { return; } else { throw(e); } } String line; do { line = reader.readLine(); if (line != null) { // This had to be rewritten (compare to Database.java) // because the Solaris platform file has been // repurposed and now contains "macros" with spaces in // them. if ((!line.startsWith("//")) && (!lineIsEmpty(line))) { int nameBegin = -1; int nameEnd = -1; boolean gotEquals = false; int contentsBegin = -1; int contentsEnd = -1; int i = 0; // Scan forward for beginning of name while (i < line.length()) { if (!Character.isWhitespace(line.charAt(i))) { break; } i++; } nameBegin = i; // Scan forward for end of name while (i < line.length()) { if (Character.isWhitespace(line.charAt(i))) { break; } i++; } nameEnd = i; // Scan forward for equals sign while (i < line.length()) { if (line.charAt(i) == '=') { gotEquals = true; break; } i++; } // Scan forward for start of contents i++; while (i < line.length()) { if (!Character.isWhitespace(line.charAt(i))) { break; } i++; } contentsBegin = i; // Scan *backward* for end of contents i = line.length() - 1; while (i >= 0) { if (!Character.isWhitespace(line.charAt(i))) { break; } } contentsEnd = i+1; // Now do consistency check if (!((nameBegin < nameEnd) && (nameEnd < contentsBegin) && (contentsBegin < contentsEnd) && (gotEquals == true))) { throw new FileFormatException( "Expected \"macroname = value\", " + "but found: " + line ); } String name = line.substring(nameBegin, nameEnd); String contents = line.substring(contentsBegin, contentsEnd); addMacro(name, contents); } } } while (line != null); reader.close(); } /** This returns an Iterator of Macros. You should not mutate the returned Macro objects or use the Iterator to remove macros. */ public Iterator getMacros() { return macros.iterator(); } }