@Override
public Object execute(final ExecutionEvent event) throws ExecutionException {
final InputDialog dialog = new InputDialog(PlatformUI.getWorkbench()
.getActiveWorkbenchWindow().getShell(), "Add user-defined refactoring",
"Please type callback module name!", "", new IInputValidator() {
public IValidator internalV = new ModuleNameValidator();
@Override
public String isValid(final String newText) {