if (!myFactoriesMap.containsKey(protocol)) { myFactoriesMap.put(protocol, factory); }
myFactoriesMap.put(protocol, factory);
    protected static void registerRepositoryFactory(String protocol, SVNRepositoryFactory factory) {        if (protocol != null && factory != null) {            if (!myFactoriesMap.containsKey(protocol)) {                myFactoriesMap.put(protocol, factory);            }        }    }