Don't include the leading ? in undertow request uri in absence of que…

…ry string

src/main/java/com/vtence/molecule/servers/UndertowServer.java

@@ -136,7 +136,7 @@ private void setRequestInfo(Request request, HttpServerExchange exchange) {
         }
 
         private String queryComponent(HttpServerExchange exchange) {
-            return exchange.getQueryString() != null ? "?" + exchange.getQueryString() : "";
+            return !exchange.getQueryString().isEmpty()? "?" + exchange.getQueryString() : "";
         }
 
         private void setHeaders(Request request, HttpServerExchange exchange) {