Dear community, I wanted to test the apt/1.0 syntax, so I updated xwiki.cfg to add "apt/1.0" in parameter "xwiki.rendering.syntaxes" and restarted my wiki. When editing a page, no "apt/1.0" choice appeared in the Document Syntax Panel. So in another page I displayed the available parsers and renderers, which gave: Parsers : [XWiki 2.1, Markdown 1.0, XWiki 2.0, TWiki 1.0, XWiki 1.0, JSPWiki 1.0, MediaWiki 1.0, DocBook 4.4, HTML 4.01, XHTML 1.0, Creole 1.0, Confluence 1.0, Plain 1.0] Renderers : [DocBook 4.4, TeX 1.0, XWiki 2.1, Annotated XHTML 1.0, XWiki 2.0, XHTML 1.0, XHTML Macro 1.0, Plain 1.0] (I'm on 5.1, apt was added in 4.3, so it should be there unless it was removed later and I missed the release note - or there was an error during install/upgrade but it seems unlikely) So from Extension Manager, I searched and installed org.xwiki.rendering:xwiki-rendering-syntax-apt-5.1.jar. No change on the list of parsers/renderers, still no APT. I thought that probably renderers and parsers are registered only at start and maybe not by EM, so I restarted the wiki again, but no change on the list of parsers/renderers. Eventually I moved that jars (for xwiki-rendering-syntax-apt and xwiki-rendering-xml) from the extension repository under perm data dir, to WEB-INF/lib of the webapp, and restarted again, and apt now appears in the list of parsers/renderers ! Then I tried to enter some content in a page, with apt syntax, and on saving got this: Caused by: java.lang.NoClassDefFoundError: org/apache/maven/doxia/module/apt/AptParser at org.xwiki.rendering.internal.parser.apt.APTParser.createDoxiaParser(APTParser.java:50) ~[xwiki-rendering-syntax-apt-5.1.jar:na] at org.xwiki.rendering.internal.parser.doxia.AbstractDoxiaParser.parse(AbstractDoxiaParser.java:99) ~[xwiki-rendering-syntax-doxia-5.1.jar:na] at org.xwiki.rendering.internal.parser.doxia.AbstractDoxiaParser.parse(AbstractDoxiaParser.java:70) ~[xwiki-rendering-syntax-doxia-5.1.jar:na] at com.xpn.xwiki.doc.XWikiDocument.parseContent(XWikiDocument.java:7975) ~[xwiki-platform-legacy-oldcore-5.1.jar:na] [...] ... 50 common frames omitted ... though from EM, dependencies of the apt renderer seem to be correctly installed (either provided or installed) : XWiki Rendering - Syntax - Doxia Bridge5.1 (in wiki xwiki) Provided Doxia :: APT Module1.3 (in wiki xwiki) Installed XWiki Rendering - Legacy - API5.1 (in wiki xwiki) Provided XWiki Commons - Legacy - Component - API5.1 (in wiki xwiki) Provided doxia-module-apt-1.3.jar is present in extensions repo (under data dir), so I thought maybe it had to be present in WEB-INF/lib (though it seems surprising that it could cause an error, never had those kind of classloader issue with xwiki extensions). So I moved it to WEB-INF/lib and restarted and .... now it's ok. Just tested with a page, and the result is very nice ! :) To be complete, I checked in war file of 6.0.1, and xwiki-rendering-syntax-apt-6.0.1.jar is not present. So I suppose APT format has not be much used yet ;-) Thanks, Jeremie PS: I would love to be able to publish a maven site to XWiki ... But I think parsing APT from xwiki may not be the best, as the idea is not to edit a maven site from xwiki (at least, my purpose is to view published maven sites, you could use apt parser to edit maven sites sources). What I would like is to be able to view a maven site from a site packaged in a jar in a maven repository, and use xwiki as a front-end for maven sites - that would be cool (or publish those jars into xwiki as attachments, so they would be indexed by solr)