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https://issues.apache.org/jira/browse/LANG-1390?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gary Gregory resolved LANG-1390.
--------------------------------
       Resolution: Fixed
    Fix Version/s: 3.8

[~joschi]: 

Thank you for your updated patch. I've applied it to git master and further 
updated the code with minor refactorings. Please verify the code and close this 
ticket and associated PR.

Gary

> StringUtils.join() with support for List<?> with configurable start/end 
> indices
> -------------------------------------------------------------------------------
>
>                 Key: LANG-1390
>                 URL: https://issues.apache.org/jira/browse/LANG-1390
>             Project: Commons Lang
>          Issue Type: Improvement
>          Components: lang.*
>    Affects Versions: 3.7
>            Reporter: Jochen Schalanda
>            Priority: Minor
>             Fix For: 3.8
>
>
> Apache Commons Lang offers a variant of the 
> [StringUtils#join()|https://commons.apache.org/proper/commons-lang/javadocs/api-3.7/org/apache/commons/lang3/StringUtils.html#join-java.lang.Object:A-java.lang.String-int-int-]
>  function which allows specifying the start and end indices which should be 
> used to concatenate the elements.
> Unfortunately, this method only works for arrays (as of Apache Commons Lang 
> 3.7) but not for lists 
> ([java.util.List|https://docs.oracle.com/javase/8/docs/api/java/util/List.html]).



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