Did you solve this? I'm using CentOS and ended up adding startup instructions for
headless office in /etc/rc.d/rc.local
Date: Fri, 7 Feb 2014 10:46:02 -0800
From: james_majerus(a)msn.com
To: users(a)xwiki.org
Subject: [xwiki-users] Redhat Xwiki 5.4 Office server configuration
Does anyone have a document on configuring xwiki.properties, and installing
openoffice in order to have the office importer function working on redhat?
It works straight out of the box on Ubuntu, however really struggling here
with rhel.