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From "Sebb (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (LANG-815) DurationFormatUtils.formatPeriod() mis-calculation
Date Thu, 27 Sep 2012 12:48:08 GMT

     [ https://issues.apache.org/jira/browse/LANG-815?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sebb resolved LANG-815.
-----------------------

    Resolution: Not A Problem

URL: http://svn.apache.org/viewvc?rev=1390971&view=rev
Log:
LANG-815 DurationFormatUtils.formatPeriod() mis-calculation
Add test case to show there is no issue

Modified:
    commons/proper/lang/trunk/src/test/java/org/apache/commons/lang3/time/DurationFormatUtilsTest.java

                
> DurationFormatUtils.formatPeriod() mis-calculation
> --------------------------------------------------
>
>                 Key: LANG-815
>                 URL: https://issues.apache.org/jira/browse/LANG-815
>             Project: Commons Lang
>          Issue Type: Bug
>          Components: lang.time.*
>    Affects Versions: 3.1
>         Environment: JDK 1.7
>            Reporter: Naoya Sugioka
>         Attachments: duration-format.diff
>
>   Original Estimate: 1h
>  Remaining Estimate: 1h
>
> Hello,
> I just encountered an issue with DurationFormatUtils.formatPeriod()
> and here I suggest the patch.
> The problem is found when calcurating a duration between  June 30 to August 8.
> Duration must be 1 month and 9 days  (June 30 + 1 month = July 30,
> July 30 + 9 Days = August 8)
> but current logic tells this duration is 1 month and 8 days.
> then I found out the logic to adjust days value if it was negative by
> initial estimate. it uses start date
> (June in above case) but must use prev month of end date (July in
> above case). then days value was
> wrong since getActualMaximum() will return a wrong number.
> thank you,
> -Naoya

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