code: public void run(IProgressMonitor monitor) {
      try {
        page.createType(monitor);
      } catch (CoreException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
      } catch (InterruptedException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
      }
    }
docs: /*
  @Override public boolean performFinish() { }