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https://issues.apache.org/jira/browse/LANG-1462?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16923034#comment-16923034
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Chen commented on LANG-1462:
----------------------------
The TimeZone parameter of the format method is used to create an instance of
FastDateFormat with an empty default value, so I don't think this is a BUG.
Just need to modify the method description.
> After version Commons-lang3.4 DateFormatUtils has a bug
> -------------------------------------------------------
>
> Key: LANG-1462
> URL: https://issues.apache.org/jira/browse/LANG-1462
> Project: Commons Lang
> Issue Type: Bug
> Components: lang.time.*
> Affects Versions: 3.5, 3.6, 3.7, 3.8, 3.9, 3.8.1
> Reporter: Lijun Liang
> Priority: Critical
>
> The code is as follows ：
> Calendar cale = Calendar.getInstance();
> System.out.println("Old time is " + DateFormatUtils.format(cale,
> "yyyyMMddHHmmss"));
> cale.setTimeZone(TimeZone.getTimeZone("JST"));
> System.out.println("New time is " + DateFormatUtils.format(cale,
> "yyyyMMddHHmmss"));
>
> The results of commons-lang3 3.4：
> Old time is 20190605144536
> New time is 20190605154536
>
> The results of the version after commons-lang3 3.4:
> Old time is 20190605144536
> New time is 20190605144536
>
> We found that the time zone setting was invalidated when it was formatted
>
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