[jira] [Commented] (BEANUTILS-387) [beanutils] copyProperties() throws a ConversionException : No value specified for 'Date' when the field is a java.util.Date with a null value

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[jira] [Commented] (BEANUTILS-387) [beanutils] copyProperties() throws a ConversionException : No value specified for 'Date' when the field is a java.util.Date with a null value

AD_LB (Jira)

    [ https://issues.apache.org/jira/browse/BEANUTILS-387?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13638933#comment-13638933 ]

Hubert Grininger commented on BEANUTILS-387:
--------------------------------------------

I'd like to back Marcin's point here.. For me the sole reason to use BeanUtils.copyProperties is copy over all the properties from object A to object B, if it's null in A it should be null in B as well.
Introducing the need for some boilerplate code really make things worse.
               

> [beanutils] copyProperties() throws a ConversionException :  No value specified for 'Date' when the field is a java.util.Date with a null value
> -----------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: BEANUTILS-387
>                 URL: https://issues.apache.org/jira/browse/BEANUTILS-387
>             Project: Commons BeanUtils
>          Issue Type: Bug
>          Components: Bean / Property Utils
>    Affects Versions: 1.8.3
>            Reporter: Daniel Marchese
>
> We have migrated the library from version 1.6.0 to 1.8.0 and the copyProperties() method fails when copying a java.util.Date attribute with a null value.
> Here is a simple testcase :
> {code}
> public class Test {
> private Date date;
>
> public Date getDate() { return date; }
> public void setDate(Date date) { this.date = date; }
> public static void main(String[] args) throws Exception {
> Test dest = new Test();
> Test source = new Test();
> BeanUtils.copyProperties(dest, source);
> }
> }
> {code}
> As a workaround, we can do this :
> ConvertUtils.register(new DateConverter(null), Date.class);
> When can also use PropertyUtils.copyProperties() because in this case no conversion is required but the impact is unknown on our big application.
> The problem is that there seems to be a regression between version 1.6.0 and 1.8.0.

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