[hibernate-issues] [Hibernate-JIRA] Commented: (HV-162) XML based configuration should be tolerant to line breaks and white spaces where appropriate

[Hardy Ferentschik (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HV-162?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=33138#action_33138 ] 

Hardy Ferentschik commented on HV-162:
--------------------------------------

Cool. Thanks for the feedback. I will have a look at it.

> XML based configuration should be tolerant to line breaks and white spaces where appropriate
> --------------------------------------------------------------------------------------------
>
>                 Key: HV-162
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HV-162
>             Project: Hibernate Validator
>          Issue Type: Bug
>    Affects Versions: 4.0.0.Beta1
>            Reporter: Gunnar Morling
>            Assignee: Hardy Ferentschik
>            Priority: Minor
>
> When using the XML based configuration approach, unnecessary line breaks can cause some trouble. Eclipse formatted a config file of mine as follows:
> 	...
> 	<default-package>org.hibernate.validation.bugscenario
> 	</default-package>
> 	<bean class="Order" ignore-annotations="false">
> 	...
> which leads to a ClassNotFoundException:
> java.lang.ClassNotFoundException: org.hibernate.validation.bugscenario
> 	.Order
> (note the line break after the package name), that is caught in XmlMappingParser, line 558 and rethrown as ValidationException. The problem goes away, if I format the package name as follows:
> 	<default-package>org.hibernate.validation.bugscenario</default-package>
> To make the XML based configuration more robust, trimming Strings such as the package name could be considered. This could be achieved by 
> leveraging JAXB's CollapsedStringAdapter (https://jaxb.dev.java.net/nonav/2.1.11/docs/api/javax/xml/bind/annotation/adapters/CollapsedStringAdapter.html).

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