for (ClassInfoImpl<T, C, F, M> ci : beans().values()) {
XmlSchema xs = reader.getPackageAnnotation( XmlSchema.class, ci.getClazz(), null );
if(xs==null)
continue;
String loc = xs.location();
if(loc.equals(XmlSchema.NO_LOCATION))
continue; // unspecified
r.put(xs.namespace(),loc);
}