code: public static Page getInstance(String className) throws TechnicalException {
          try {
              return (Page) NoraUiInjector.getNoraUiInjectorSource().getInstance(Class.forName(pagesPackage + className));
          } catch (final ClassNotFoundException e) {
              throw new TechnicalException(Messages.format(Messages.getMessage(PAGE_UNABLE_TO_RETRIEVE), className), e);
          }
      }
docs: Finds a Page by its name (not the full qualified name).
  Create a instance or use instance if already exist (com.google.inject.@Singleton).
  
  @param className
  The name of the class to find. Full qualified name is not required.
  Ex: 'MyPage' or 'mypackageinpages.MyPage'
  @return
  A Page instance
  @throws TechnicalException
  if ClassNotFoundException in getInstance() of Page.