[
https://issues.apache.org/jira/browse/LANG-909?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13870077#comment-13870077
]
Charles Honton commented on LANG-909:
-------------------------------------
FastDateFormat was designed to be thread safe. The thread safe wrapper came in
slightly after FastDateFormat was completed, and before FastDateFormat was
released. There was at one point a unit test that proved SimpleDateFormat
failed multi-thread safety, while FastDateFormat passed.
> Thread-safe wrapper for SimpleDateFormat
> ----------------------------------------
>
> Key: LANG-909
> URL: https://issues.apache.org/jira/browse/LANG-909
> Project: Commons Lang
> Issue Type: New Feature
> Components: lang.time.*
> Affects Versions: 3.1
> Reporter: Dmitry Katsubo
> Priority: Minor
> Fix For: Review Patch
>
> Attachments: DateFormatAdapter.java, ThreadSafeSimpleDateFormat.java,
> ThreadSafeSimpleDateFormatTest.java
>
>
> {{SimpleDateFormat}} implementation in JDK is known to be [not
> thread-safe|http://stackoverflow.com/questions/6840803/simpledateformat-thread-safety].
> The attached helper class solves the problem by holding a separate instance
> of {{SimpleDateFormat}} per thread.
--
This message was sent by Atlassian JIRA
(v6.1.5#6160)
