Do I need to have xml parsers in an endorsed classloader?
If you have installed Pluto 1.1.5 or greater, and are running on Java 5 or greater, then you do not need to endorse any XML libraries. Pluto will use JAXP. The Pluto 1.1.x codebase targets Java 1.4, and so the bundled distribution of Pluto includes Tomcat with XML libraries in common/endorsed. Simply remove the XML libraries from common/endorsed if you meet the above requirements.