private GlobalComponentRegistry gcr;
private void initInternalExternalizers() {
internalExternalizers.add(new ArrayListExternalizer());
internalExternalizers.add(new LinkedListExternalizer());
internalExternalizers.add(new MapExternalizer());
internalExternalizers.add(new SetExternalizer());
internalExternalizers.add(new SingletonListExternalizer());
internalExternalizers.add(new GlobalTransaction.Externalizer());
internalExternalizers.add(new RecoveryAwareGlobalTransaction.Externalizer());