code: protected static UResourceBundle getBundleInstance(String baseName, String localeName,
                                                         ClassLoader root, boolean disableFallback) {
          return instantiateBundle(baseName, localeName, root, disableFallback);
      }
docs: <strong>[icu]</strong> Creates a resource bundle using the specified base name, locale, and class
  root.
  
  @param baseName string containing the name of the data package.
  If null the default ICU package name is used.
  @param localeName the locale for which a resource bundle is desired
  @param root the class object from which to load the resource bundle
  @param disableFallback Option to disable locale inheritence.
  If true the fallback chain will not be built.
  @throws MissingResourceException
  if no resource bundle for the specified base name can be found
  @return a resource bundle for the given base name and locale