/**
  * Returns the identifier of the page to show last in the wizard.
  *
  * @return the identifier of the page to show last in the wizard.
  */
 public Object getLastPageIdentifier() {
   return firstWizardPage.getIdentifier();
 }
 /**
  * Returns the identifier of the page to show first in the wizard.
  *
  * @return the identifier of the page to show first in the wizard.
  */
 @Override
 public Object getFirstPageIdentifier() {
   return firstWizardPage.getIdentifier();
 }