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Posted to regexp-dev@jakarta.apache.org by bu...@apache.org on 2003/07/10 15:58:01 UTC
DO NOT REPLY [Bug 21469] New: -
StackOverflowError in RE.matchNodes() with 1614 bytes
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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=21469
StackOverflowError in RE.matchNodes() with 1614 bytes
Summary: StackOverflowError in RE.matchNodes() with 1614 bytes
Product: Regexp
Version: unspecified
Platform: PC
OS/Version: Windows NT/2K
Status: NEW
Severity: Blocker
Priority: Other
Component: Other
AssignedTo: regexp-dev@jakarta.apache.org
ReportedBy: GKAlbrecht@gmx.de
Hello Regexp team,
I found an error in RE.java version 1.13 (also in version 1.2).
The test code is trivial:
--------------------------------------------------------------------------
package de;
import org.apache.regexp.RE;
import org.apache.regexp.RESyntaxException;
public class TestRegExp
{
public static void main(String[] args)
{
RE re = null;
try
{
re = new RE(".*");
byte[] bytes = new byte[1613]; // 1613 is OK; 1614 StackOverflowError
// AAAAAAAAAAAAAA.....AZ
for (int i=0; i<bytes.length; ++i)
{
bytes[i] = 'A';
}
bytes[bytes.length-1] = 'Z';
String string = new String(bytes);
System.out.println(">" + string + "\nmatch: " + re.match(string));
}
catch (RESyntaxException e)
{
e.printStackTrace();
}
}
}
--------------------------------------------------------------------------
With 1613 bytes the output is:
>AAAAAAAAAAAAAA.....AZ
match: true
But with 1614 bytes it looks like (RE.java,v 1.13 2003/06/02 02:18:41
vgritsenko Exp):
java.lang.StackOverflowError
at org.apache.regexp.RE.matchNodes(RE.java:1153)
at org.apache.regexp.RE.matchNodes(RE.java:1408)
at org.apache.regexp.RE.matchNodes(RE.java:1408)
at org.apache.regexp.RE.matchNodes(RE.java:1408)
at org.apache.regexp.RE.matchNodes(RE.java:1408)
at org.apache.regexp.RE.matchNodes(RE.java:1408)
...................
at org.apache.regexp.RE.matchNodes(RE.java:1408)
at org.apache.regexp.RE.matchNodes(RE.java:1408)
at org.apache.regexp.RE.matchNodes(RE.java:1408)
at org.apache.regexp.RE.matchNodes(RE.java:1408)
at org.apache.regexp.RE.matchNodes(RE.java:1408)
Exception in thread "main"
Thanks in advance
G�nter Albrecht
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