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https://jira.codehaus.org/browse/MNG-5446?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=321696#comment-321696
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Robert Scholte commented on MNG-5446:
-------------------------------------
Could this be the reason for MNG-5213?
> AM/PM inconsistency in mng-3827 and mng-3864 ITs?
> -------------------------------------------------
>
> Key: MNG-5446
> URL: https://jira.codehaus.org/browse/MNG-5446
> Project: Maven 2 & 3
> Issue Type: Test
> Components: Integration Tests
> Reporter: Stuart McCulloch
> Priority: Minor
>
> The mng-3827 and mng-3864 ITs both include the following Date parameter in
> their plugin test configuration:
> {code}
> <dateParam>2008-11-09 11:59:03.0 PM</dateParam>
> {code}
> https://github.com/apache/maven-integration-testing/blob/master/core-it-suite/src/test/resources/mng-3827/pom.xml#L63
> https://github.com/apache/maven-integration-testing/blob/master/core-it-suite/src/test/resources/mng-3864/pom.xml#L69
> This parameter is then expected to be written out as:
> {code}
> 2008-11-09 11:59:03
> {code}
> https://github.com/apache/maven-integration-testing/blob/master/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng3827PluginConfigTest.java#L72
> https://github.com/apache/maven-integration-testing/blob/master/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng3864PerExecPluginConfigTest.java#L72
> This looks odd - I would expect "23:59:03" since the time is being written
> back out without the AM/PM flag and {code}System.err.println(new
> Date());{code} uses the 24 hour clock on my local JVM.
> I suspect there's a long-standing bug in the Plexus DateConverter where it
> parses the date using a SimpleDateFormat of "yyyy-MM-dd HH:mm:ss.S a" for
> values with an AM/PM flag. This format uses 'HH' to parse the hour as 'Hour
> in day (0-23)' rather than 'hh' to parse it as 'Hour in am/pm (1-12)', which
> would explain why "11:59:03.0 PM" is written back as "11:59:03" and not
> "23:59:03".
> If that's the case then I'd like to suggest the dateParam in the mng-3827 and
> mng-3864 ITs is changed to:
> {code}
> <dateParam>2008-11-09 11:59:03.0 AM</dateParam>
> {code}
> because that way the result would still match the expected "11:59:03" string
> if/when the DateConverter is fixed (I'm doing some refactoring in the
> Sisu-Plexus internals to improve re-use which touches on configuration).
> AFAICT these ITs don't appear to be testing this specific Date conversion
> behaviour (ie. silently ignoring / dropping the PM flag), but if this isn't
> the case and the current behaviour should be maintained for legacy reasons
> then I'd also like to know.
> Thanks in advance!
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