List<String> subArgs = Collections.emptyList();
if (args.size() > 1) subArgs = args.subList(1, args.size());
try {
Object ocmmand = RuntimeUtils.loadInstanceForName(cmd, null);
Command command = (Command) ocmmand;
return command.run(subArgs);
} catch (ClassNotFoundException e) {
return null;
} catch (Exception e) {
return e.getMessage();
}