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From "Asela Illayapparachchi (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LANG-703) StringUtils.join throws NPE when toString returns null for one of objects in collection
Date Mon, 06 Jun 2011 16:00:59 GMT

    [ https://issues.apache.org/jira/browse/LANG-703?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13044925#comment-13044925
] 

Asela Illayapparachchi commented on LANG-703:
---------------------------------------------

I suppose following code makes the issue

3297	        bufSize *= ((array[startIndex] == null ? 16 :
                                       array[startIndex].toString().length()) + 1);
3298	        StringBuilder buf = new StringBuilder(bufSize);

> StringUtils.join throws NPE when toString returns null for one of objects in collection
> ---------------------------------------------------------------------------------------
>
>                 Key: LANG-703
>                 URL: https://issues.apache.org/jira/browse/LANG-703
>             Project: Commons Lang
>          Issue Type: Bug
>            Reporter: Ilya
>
> Try
> {code} 
> StringUtils.join(new Object[]{
>         new Object() {
>           @Override
>           public String toString() {
>             return null;
>           }
>         }
>     }, ',');
> {code}
> ToString should probably never return null, but it does in javax.mail.internet.InternetAddress

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