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Posted to dev@hc.apache.org by "Patrick Linskey (JIRA)" <ji...@apache.org> on 2012/08/29 18:34:07 UTC
[jira] [Updated] (HTTPCLIENT-1227) DateUtils parsing triggers
ParseExceptions
[ https://issues.apache.org/jira/browse/HTTPCLIENT-1227?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Patrick Linskey updated HTTPCLIENT-1227:
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Attachment: faster-dates.patch
> DateUtils parsing triggers ParseExceptions
> ------------------------------------------
>
> Key: HTTPCLIENT-1227
> URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1227
> Project: HttpComponents HttpClient
> Issue Type: Improvement
> Affects Versions: 4.1.3, 4.2.1, 4.2.2, 4.3 Final
> Reporter: Patrick Linskey
> Attachments: faster-dates.patch
>
>
> DateUtils.DEFAULT_PATTERNS is not in the same order as the HTTP header spec [1], and uses a SimpleDateFormat.parse() method that creates exceptions. The upshot is that in the common case, extra parsing must happen, and an exception must be created (and its stack must be filled in). This leads to unfortunate additional CPU overhead.
> [1] http://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec3.3.1
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