[jira] [Created] (LANG-1002) Several predefined ISO FastDateFormats in DateFormatUtils are incorrect

["Michael Osipov (JIRA)" <ji...@apache.org>]

Michael Osipov created LANG-1002:
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             Summary: Several predefined ISO FastDateFormats in DateFormatUtils are incorrect
                 Key: LANG-1002
                 URL: https://issues.apache.org/jira/browse/LANG-1002
             Project: Commons Lang
          Issue Type: Bug
          Components: lang.time.*
    Affects Versions: 3.3.2
            Reporter: Michael Osipov


Formats {{ISO_TIME_FORMAT}}, {{ISO_TIME_TIME_ZONE_FORMAT}} prepend a {{T}} but this is not correct. Sole time is never prepended by defintion. {{T}} is used only when date *and* time are given.

The Javadocs of {{ISO_TIME_NO_T_FORMAT}}, {{ISO_TIME_NO_T_FORMAT}} are in correct too because they say: "This pattern does not comply with the formal ISO8601 specification as the standard requires the 'T' prefix for times."

You might want to read [Markus Kuhn's reference|https://www.cl.cam.ac.uk/~mgk25/iso-time.html#time] on that.

A solution would be remove the first two and rename the second two by dropping the {{NO_T}} in the name.



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