FOP needs to get the Classloader of org.apache.fop.fo.ElementMapping.class to
start, but in TC4.0.4 we cannot access to classloader. This is an issue that
blocks the use of embeded FOP in TC 4.0.4

This is due a security change on TC, so the best solution is to patch FOP and
don't say "This is a TC issue"




       // add mappings from available services
        Enumeration providers =
            Service.providers(org.apache.fop.fo.ElementMapping.class);
        if (providers != null) {
            while (providers.hasMoreElements()) {
                String str = (String)providers.nextElement();
                try {
                    addElementMapping(str);
                } catch (IllegalArgumentException e) {}

            }
        }




class Service {

    static Hashtable providerMap = new Hashtable();

    public static synchronized Enumeration providers(Class cls) {
        ClassLoader cl = cls.getClassLoader(); ----- wil return null on tomcat
4.04!!!!
        String serviceFile = "META-INF/services/" + cls.getName();