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From "ASF subversion and git services (JIRA)" <>
Subject [jira] [Commented] (WW-4831) Array-of-null parameters are converted to arrays containing "null"
Date Tue, 01 Aug 2017 13:57:01 GMT


ASF subversion and git services commented on WW-4831:

Commit 60d61fac0abb5993977e84f8dcc5bea6588f41d6 in struts's branch refs/heads/master from
[;h=60d61fa ]

[WW-4831] add unit tests for conversion of String arrays

> Array-of-null parameters are converted to arrays containing "null"
> ------------------------------------------------------------------
>                 Key: WW-4831
>                 URL:
>             Project: Struts 2
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 2.5.12
>            Reporter: Mitth'raw'nuruodo
>             Fix For: 2.5.13
> The {{com.opensymphony.xwork2.conversion.impl.StringConverter}} class, since Struts 2.5.11,
incorrectly handles arrays containing null; it converts them to arrays containing the string
"null" (using {{String.valueOf}}).
> This is breaking one of our applications; some pages are OK, but on other pages, every
non-provided field is populated with the String "null".
> This is a similar issue to WW-4737, but occurring in different code.
> Please ensure that conversion to String always uses the two-argument version of {{Objects.toString}},
which preserves nulls, rather than {{String.valueOf}}, which converts them to the four-letter
string "null".

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