RepeatableProperty : JellyTagException

[JoshuadV]

Hey guys,

I want to achieve some nested properties in the config of my build and i need to use repeatableProperty for that.

Everytime i add repeatableProperty to my jelly File i get an Exception when loading the config page.

    <f:entry>
       <f:repeatableProperty field="test"></f:repeatableProperty>
    </f:entry>

Then this error appears:

javax.servlet.ServletException: org.apache.commons.jelly.JellyTagException: jar:file:/C:/Program%20Files/apache-maven-3.3.3/testplugin/target/work/webapp/WEB-INF/lib/jenkins-core-1.621.jar!/lib/form/repeatableProperty.jelly:66:69: <st:include> Error setting property 'class', exception - org.apache.commons.beanutils.ConversionException: No value specified for 'Class'

I had a look at some other Plugins and they all just use the repeatableProperty like this. Additionally i googled a lot but there are not many matches, and the matches which i found doesnt help. Need your help guys.

Joshua