>> Can this jar be removed? > > I would say so, yes, unless the policy is to keep it for the sake of > supporting old JVMs (1.3 and earlier?).
IIRC, FOPs Run page, Java 1.5 and above is required to rub FOP 2.0: http://xmlgraphics.staging.apache.org/fop/2.0/running.html System Requirements The following software must be installed: Java 1.6 or later Runtime Environment.