private void initData(String baseName, Locale l) {
    String resource = baseName + "_" + l.getLanguage() + ".txt";

    InputStream is = null;
    try {
      is = ClassPathLoader.getLatest().getResourceAsStream(getClass(), resource);
    } catch (SecurityException se) {
      // We do not have a logger yet
      System.err.println(
          "A SecurityException occurred while attempting to load the resource bundle, defaulting to English."
              + se);
      se.printStackTrace();
      System.err.flush();
    }
    if (is == null) {
      // No matching data file for the requested langauge,
      // defaulting to English
      data = null;
    } else {
      data = readDataFile(is);
    }
  }
Init method to populate the TIntObjectHashMap for Non-english locales
<code>data = new TIntObjectHashMap();</code>

The default bundle, English, will be <code>data = null</code>
geode-core/src/main/java/org/apache/geode/internal/i18n/AbstractStringIdResourceBundle.java