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https://issues.apache.org/jira/browse/CONFIGURATION-446?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Oliver Heger resolved CONFIGURATION-446.
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Resolution: Fixed
Fix Version/s: 1.7
A fix was applied in subversion at revision 1095501. Thanks for the report.
> XMLConfiguration removes empty attributes on update
> ---------------------------------------------------
>
> Key: CONFIGURATION-446
> URL: https://issues.apache.org/jira/browse/CONFIGURATION-446
> Project: Commons Configuration
> Issue Type: Bug
> Affects Versions: 1.6
> Reporter: Ghislain Delépine
> Assignee: Oliver Heger
> Fix For: 1.7
>
>
> Consider an XML configuration file config.xml containing:
> <configuration>
> <foo attr="aValue">
> </foo>
> </configuration>
> Update the configuration to set an attribute to empty:
> XMLConfiguration config = new XMLConfiguration("config.xml");
> config.setExpressionEngine(new XPathExpressionEngine());
>
> config.setProperty("foo/@attr", "");
> config.save();
> The file has been modified as follows:
> <configuration>
> <foo/>
> </configuration>
> The attribute shouldn't be removed as an empty attribute is different from a
> missing attribute.
> Method removing the attribute:
> XMLConfiguration$XMLBuilderVisitor.updateAttribute(Node node, Element elem,
> String name, char listDelimiter)
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