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https://issues.apache.org/jira/browse/NET-710?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17838535#comment-17838535
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Jacob Vandborg commented on NET-710:
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There is still a problem with DST in FTPTimestampParserImpl. Latest encounter
for myself was on Mar 31 04:37 CET using commons-net:commons-net:3.10.0
> Timestamp parsing fails around the change to daylight savings
> -------------------------------------------------------------
>
> Key: NET-710
> URL: https://issues.apache.org/jira/browse/NET-710
> Project: Commons Net
> Issue Type: Bug
> Components: FTP
> Affects Versions: 3.3, 3.8.0
> Reporter: Mike Baranczak
> Priority: Major
>
> {{String ts = "Mar 13 02:33";}}
> {{Calendar serverTime = Calendar.getInstance(TimeZone.getTimeZone("EDT"),
> Locale.US);}}
> {{serverTime.set(2022, 2, 16, 14, 0);}}
> {{Calendar c = new FTPTimestampParserImpl().parseTimestamp(ts, serverTime);}}
>
> {{Result:}}
>
> {{java.text.ParseException: Timestamp 'Mar 13 02:33' could not be parsed
> using a server time of Wed Mar 16 10:00:54 EDT 2022}}
> {{ at
> org.apache.commons.net.ftp.parser.FTPTimestampParserImpl.parseTimestamp
> (FTPTimestampParserImpl.java:246)}}
>
> I can't tell what's going on, but this seems to have something to do with the
> transition to Daylight Savings Time, which happened on Sunday, March 13. I
> ran into this bug when trying to get a list of recent files from an FTP
> server. (UnixFTPEntryParser ignores the exception silently, which isn't a
> great idea, either.)
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