public static String getLocalizedString(String key, String pluginName, List arguments) {
        return getLocalizedString(key, pluginName, arguments, null, true);
    }
Returns an internationalized string loaded from a resource bundle from the passed
in plugin. If the plugin name is {@code null}, the key will be looked up using
the standard resource bundle.

@param key the key to use for retrieving the string from the
     appropriate resource bundle.
@param pluginName the name of the plugin to load the require resource bundle from.
@param arguments a list of objects to use which are formatted, then
     inserted into the pattern at the appropriate places.
@return the localized string.
xmppserver/src/main/java/org/jivesoftware/util/LocaleUtils.java