in src/main/java/org/apache/sling/jackrabbit/usermanager/impl/post/AbstractPostServlet.java [396:412]
protected final String externalizePath(SlingHttpServletRequest request,
String path) {
StringBuilder ret = new StringBuilder();
ret.append(SlingRequestPaths.getContextPath(request));
ret.append(request.getResourceResolver().map(path));
// append optional extension
String ext = request.getParameter(SlingPostConstants.RP_DISPLAY_EXTENSION);
if (ext != null && ext.length() > 0) {
if (ext.charAt(0) != '.') {
ret.append('.');
}
ret.append(ext);
}
return ret.toString();
}