/**
* opens the rename wizard
*/
private void openWizard() {
Refactoring ref = getRefactoring();
RenameRefactorWizard wizard = new RenameRefactorWizard( ref, info );
RefactoringWizardOpenOperation op = new RefactoringWizardOpenOperation( wizard );
try {
op.run( shell, "Rename Refactoring Wizard");
} catch( final InterruptedException irex ) {
// operation canceled