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From "Charles Honton (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LANG-1248) FastDatePrinter Memory allocation regression
Date Tue, 05 Jul 2016 19:59:11 GMT

    [ https://issues.apache.org/jira/browse/LANG-1248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15363121#comment-15363121
] 

Charles Honton commented on LANG-1248:
--------------------------------------

Specializing appendFullDigits for 4 and 3 digits does not work in general case.  SimpleDateFormat
documentation states: "Number: For formatting, the number of pattern letters is the minimum
number of digits".

> FastDatePrinter Memory allocation regression
> --------------------------------------------
>
>                 Key: LANG-1248
>                 URL: https://issues.apache.org/jira/browse/LANG-1248
>             Project: Commons Lang
>          Issue Type: Bug
>          Components: lang.time.*
>    Affects Versions: 3.5
>            Reporter: Benoit Wiart
>
> when the code was migrated from StringBuffer to Appendable in LANG-1152.
> We've lost the ability to modify the buffer (setCharAt) 
> The new implementation of appendFullDigits allocate a temporary char array to work around
that limitation.
> This is a major source of memory allocation which is not present in version 3.4.



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