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https://issues.apache.org/jira/browse/CAMEL-10988?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16029310#comment-16029310
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Claus Ibsen commented on CAMEL-10988:
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There is a new camel-headersmap JAR which you just add to the classpath. And
for spring-boot there is a camel-headersmap-starter JAR instead.
> Improve performance of CaseInsensitiveMap
> -----------------------------------------
>
> Key: CAMEL-10988
> URL: https://issues.apache.org/jira/browse/CAMEL-10988
> Project: Camel
> Issue Type: Improvement
> Components: camel-core
> Affects Versions: 2.18.2
> Reporter: Marcin Lachowicz
> Assignee: Claus Ibsen
> Fix For: 2.20.0
>
>
> Current CaseInsensitiveMap bases on TreeMap.
> Basing on JMH, I found out that [the following implementation of
> CaseInsensitiveMap|https://github.com/jdereg/java-util/blob/master/src/main/java/com/cedarsoftware/util/CaseInsensitiveMap.java]
> results with even 50% performance boost, depending on use-case.
> It uses HashMap with case-insensitive wrappers on String keys.
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