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https://issues.apache.org/jira/browse/NET-516?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13906796#comment-13906796
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pavan commented on NET-516:
---------------------------
The issue is happening because of the regular expression used from
commons-net-2.0. The regex used by the commons-net 2.0 is
(\\S+)\\s+(\\S+)\\s+(?:(<DIR>)|([0-9]+))\\s+(\\S.*). If you carefully look at
the last capturing group (\\S.*) first it looks for a non whitespace character
then for any character.
According the java pattern class documentation 0x85 is a line terminator and
also .* by default only matches printable characters and wont match any control
characters. Creating the pattern using Pattern.DOTALL makes control characters
also to match. I am attaching a sample program for reproducing the issue.
> problem occurs if the filename contains one or more characters of which the
> second byte of Shift-JIS code is 0x85
> ------------------------------------------------------------------------------------------------------------------
>
> Key: NET-516
> URL: https://issues.apache.org/jira/browse/NET-516
> Project: Commons Net
> Issue Type: Bug
> Components: FTP
> Affects Versions: 2.0
> Environment: windows
> Reporter: Asha K S
> Fix For: 2.0
>
> Attachments: notworking.png, working.png
>
>
> Problem occurs if the filename contains one or more characters of which the
> second byte of Shift-JIS code is 0x85, on a windows Japanese machine when
> listing file names from IIS FTP server.
> This was working fine in commons-net-1.4.0.jar .
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