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https://issues.apache.org/jira/browse/MYFACES-4237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16510074#comment-16510074
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Thomas Andraschko commented on MYFACES-4237:
--------------------------------------------
Is the check used in production mode? AFAIR we have a flag for it.
> [perf] Performance update when checking for duplicate ids
> ---------------------------------------------------------
>
> Key: MYFACES-4237
> URL: https://issues.apache.org/jira/browse/MYFACES-4237
> Project: MyFaces Core
> Issue Type: Improvement
> Components: JSR-372
> Affects Versions: 2.2.12, 2.3.1
> Reporter: Paul Nicolucci
> Assignee: Paul Nicolucci
> Priority: Minor
> Fix For: 2.2.13, 2.3.2
>
>
> In
> org/apache/myfaces/view/facelets/compiler/CheckDuplicateIdFaceletUtils.java
> we currently do the following:
> {code:java}
> if (existingIds.contains (id)) {
> ....
> }
> {code}
> We can increase performance by doing the following:
> {code:java}
> if (!existingIds.add (id)) {
> ....
> }
> {code}
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