On Sun, Oct 21, 2012 at 6:01 PM, Boudjelda Mohamed Said &lt;bmscomp(a)gmail.com&gt; wrote: The following code, taken from XWiki.ClassSheet ( https://github.com/xwiki/xwiki-enterprise/blob/master/xwiki-enterprise-ui/s… ), lists all the fields of the Blog.BlogPostClass : ----------8<---------- {{velocity}} #set ($classDocument = $xwiki.getDocument('Blog.BlogPostClass')) #foreach($property in $classDocument.getxWikiClass().properties) * $property.prettyName ($property.name: $xwiki.metaclass.get($property.classType).prettyName) #end {{/velocity}} ---------->8---------- You cannot use Java reflection on an XWiki class (to get its fields) because it isn't a real Java class, i.e. the fields are not static Java class fields. You can however use $classDocument.getxWikiClass().class.name (in Velocity) to get the name of the Java class used to implement the XClass (in order to know the available API). Hope this helps, Marius