*/
    public static void main(String[] args) throws AccountCreationException, EntityFormatException {
        // choose the storage you want to use
        //StorageProviderRegistry providerRegistry = new JcrStorageProviderRegistry();
        StorageProviderRegistry providerRegistry = new MemoryStorageProviderRegistry();
        final AccountManagement accountManagement = (AccountManagement) providerRegistry
                .retrieve(AccountManagement.class);
        if (!accountManagement.verifyAccountExists(EntityImpl.parse("user1@vysper.org"))) {
            accountManagement.addUser("user1@vysper.org", "password1");
        }