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https://issues.apache.org/jira/browse/WW-4837?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16119413#comment-16119413
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Lukasz Lenart commented on WW-4837:
-----------------------------------
I will add this to the migration guide as well. But instead adding quotes to
all your literals at once you can implement a {{BigDecimal}} converter and
register it in {{xwork-conversion.properties}} as stated here [1]. This will
allow you migrate your code step by step. Another option is to use a custom
{{StringConverter}} but then this can affect some other things as well, so I
wouldn't go this way ;-)
{code}
# syntax: <type> = <converterClassName>
java.math.BigDecimal = com.acme.MyBigDecimalConverter
{code}
[1]
https://struts.apache.org/docs/type-conversion.html#TypeConversion-ApplyingaTypeConverterforanapplication
> StringConverter adds a decimal place to integers
> ------------------------------------------------
>
> Key: WW-4837
> URL: https://issues.apache.org/jira/browse/WW-4837
> Project: Struts 2
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.5.12
> Reporter: Mitth'raw'nuruodo
> Fix For: 2.5.13
>
> Attachments: 2017-08-08_1045.png
>
>
> Commit 229afea64e77c2dba9eec62b2c339e9fc92c9ec7 caused all inputs
> recognisable as numbers to be formatted with at least one decimal place. This
> includes all integers, which is frequently undesirable, particularly if they
> were meant to be, eg:
> - identifiers, not for arithmetic;
> - strictly validated against an XML schema that does not allow for
> floating-point numbers;
> - subject to length limitations;
> - etc
> This apparently occurs because all inputs that look like numbers, regardless
> of format, are of type {{BigDecimal}} by the time they reach the
> {{StringConverter}}.
> For our applications, this is a blocker; is it working differently for
> others? We don't have any special handling of input types.
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