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https://issues.apache.org/jira/browse/WW-4101?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13924363#comment-13924363
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Lukasz Lenart commented on WW-4101:
-----------------------------------
[~maurizio.cucchiara] is right - current implementations of
{{ActionValidatorManager}} don't cache created instances of {{Validator}}, but
you can always implement your own version of {{ActionValidatorManager}} witch
cache and let us know how it works :-)
> RegexFieldValidator should precompile patterns
> ----------------------------------------------
>
> Key: WW-4101
> URL: https://issues.apache.org/jira/browse/WW-4101
> Project: Struts 2
> Issue Type: Improvement
> Components: Core Actions
> Affects Versions: 2.3.14.3
> Reporter: Marcin Kamionowski
> Fix For: 2.3.x
>
>
> RegexFieldValidator compile pattern for each execution of method validate so
> it's much slower.
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