reg.registerBuilder(new RecipientTokenBuilder());
reg.registerBuilder(new RecipientSignatureTokenBuilder());
reg.registerBuilder(new RecipientEncryptionTokenBuilder());
reg.registerBuilder(new RequiredElementsBuilder());
reg.registerBuilder(new RequiredPartsBuilder());
reg.registerBuilder(new SamlTokenBuilder());
reg.registerBuilder(new KerberosTokenBuilder());
reg.registerBuilder(new SecureConversationTokenBuilder());
reg.registerBuilder(new BootstrapPolicyBuilder());
reg.registerBuilder(new SecurityContextTokenBuilder());
reg.registerBuilder(new SignedElementsBuilder());