sitesRoot = System.getProperty(DispatcherConfiguration.BUNDLE_CONTEXT_ROOT_URI);
if (sitesRoot == null)
sitesRoot = DEFAULT_BUNDLE_CONTEXT_ROOT_URI;
if (!sitesRoot.startsWith("/"))
sitesRoot = "/" + sitesRoot;
webXml.addContextParam(DispatcherConfiguration.BUNDLE_CONTEXT_ROOT_URI, sitesRoot);
// Bundle context root
sitesRoot = UrlUtils.concat(webappRoot, sitesRoot);
webXml.addContextParam(DispatcherConfiguration.BUNDLE_CONTEXT_ROOT, sitesRoot);