InvocationTargetException when trying to install LiveEdit extension on LibreOffice 4.2.7.2

[mdutoo]

A "java.lang.InvocationTargetException" message box is displayed and the extension fails to install. Seen on Ubuntu 14.04 and Java 7 or 8.

[mdutoo]

Debugging it with libreoffice remote debugging (https://forum.openoffice.org/en/forum/viewtopic.php?f=45&t=3145) shows an underlaying "java.lang.ClassNotFoundException: com.sun.star.task.XJob" error. So it's probably because the LibreOffice installation is not compatible. So at least 4.2.7.2 doesn't work, but obviously LibreOffice 3.4.4+ should according to http://doc.nuxeo.com/display/USERDOC/Installing+Live+Edit and Open Office 2.2.0+ should according to https://fisheye.nuxeo.com/browse/desktop-integration-liveedit/nuxeo-liveedit-openoffice-extension/po... .