Wed, 30 Apr 2014 23:26:43 +0100
8038023: Compiler crash ClassCastException
Summary: Add additional checks on results of ClassReader.readPool
Reviewed-by: vromero
1 /*
2 * Copyright (c) 1999, 2010, 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
26 package com.sun.tools.javac.main;
28 import java.io.IOException;
29 import java.io.Reader;
30 import java.io.FileReader;
31 import java.io.BufferedReader;
32 import java.io.StreamTokenizer;
33 import com.sun.tools.javac.util.ListBuffer;
35 /**
36 * Various utility methods for processing Java tool command line arguments.
37 *
38 * <p><b>This is NOT part of any supported API.
39 * If you write code that depends on this, you do so at your own risk.
40 * This code and its internal interfaces are subject to change or
41 * deletion without notice.</b>
42 */
43 public class CommandLine {
44 /**
45 * Process Win32-style command files for the specified command line
46 * arguments and return the resulting arguments. A command file argument
47 * is of the form '@file' where 'file' is the name of the file whose
48 * contents are to be parsed for additional arguments. The contents of
49 * the command file are parsed using StreamTokenizer and the original
50 * '@file' argument replaced with the resulting tokens. Recursive command
51 * files are not supported. The '@' character itself can be quoted with
52 * the sequence '@@'.
53 */
54 public static String[] parse(String[] args)
55 throws IOException
56 {
57 ListBuffer<String> newArgs = new ListBuffer<String>();
58 for (int i = 0; i < args.length; i++) {
59 String arg = args[i];
60 if (arg.length() > 1 && arg.charAt(0) == '@') {
61 arg = arg.substring(1);
62 if (arg.charAt(0) == '@') {
63 newArgs.append(arg);
64 } else {
65 loadCmdFile(arg, newArgs);
66 }
67 } else {
68 newArgs.append(arg);
69 }
70 }
71 return newArgs.toList().toArray(new String[newArgs.length()]);
72 }
74 private static void loadCmdFile(String name, ListBuffer<String> args)
75 throws IOException
76 {
77 Reader r = new BufferedReader(new FileReader(name));
78 StreamTokenizer st = new StreamTokenizer(r);
79 st.resetSyntax();
80 st.wordChars(' ', 255);
81 st.whitespaceChars(0, ' ');
82 st.commentChar('#');
83 st.quoteChar('"');
84 st.quoteChar('\'');
85 while (st.nextToken() != StreamTokenizer.TT_EOF) {
86 args.append(st.sval);
87 }
88 r.close();
89 }
90 }