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https://issues.apache.org/jira/browse/LANG-1593?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17402543#comment-17402543
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Hubert Wojciechowski commented on LANG-1593:
--------------------------------------------
h3. Evidences
{code:java}
hubert@mac target % jshell -class-path './commons-lang3-3.13.0-SNAPSHOT.jar'
| Welcome to JShell -- Version 16
| For an introduction type: /help intro
jshell> import org.apache.commons.lang3.StringUtils
jshell> int[] arr = {1, 2, 3, 4, 5, 6, 7};
arr ==> int[7] { 1, 2, 3, 4, 5, 6, 7 }
jshell> String result = StringUtils.join(arr, '-');
result ==> "1-2-3-4-5-6-7"
jshell> String result = StringUtils.join(arr, "-");
result ==> "1-2-3-4-5-6-7"
{code}
> Common behaviour for StringUtils join APIs when called with char or String
> delimiter
> ------------------------------------------------------------------------------------
>
> Key: LANG-1593
> URL: https://issues.apache.org/jira/browse/LANG-1593
> Project: Commons Lang
> Issue Type: Improvement
> Affects Versions: 3.4, 3.11
> Reporter: Kiruahxh
> Priority: Minor
> Time Spent: 4h 10m
> Remaining Estimate: 0h
>
> For now, join(int[], char) is working well.
> However, the same join method called with a string delimiter behaves
> differently : it returns a single memory address which is not the desired
> behavior.
> I think that, for coherence, calling StringUtils with a char or String
> delimiter should return the exact same value.
> Ex :
> {code:java}
> CLASSPATH="./commons-lang3-3.11.jar" jshell
> | Welcome to JShell -- Version 11.0.8
> jshell> import org.apache.commons.lang3.StringUtils
> jshell> int[] arr = {1, 2, 3, 4, 5, 6, 7};
> jshell> String result = StringUtils.join(arr, '-');
> result ==> "1-2-3-4-5-6-7"
> jshell> String result = StringUtils.join(arr, "-");
> result ==> "[I@69663380-"
> {code}
>
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