public XML xmlHandler() {
   return XML.parseTemplate("<form action=[HANLDER]/>")
       .plug(
           "HANDLER",
           new SubmitHandler() {
             public XML run() {
               return null;
             }
           });
 }
 public XML voidHandler() {
   return XML.parseTemplate("<form action=[HANLDER]/>")
       .plug(
           "HANDLER",
           new SubmitHandler() {
             public void run() {
               //
             }
           });
 }