protected FlatPack flatpack(String policyContents) {
StaticPolicy securityPolicy = new StaticPolicy(policyContents);
FlatPack flatpack = FlatPack.create(
new Configuration()
.addTypeSource(new TypeSource() {
@Override
public Set<Class<?>> getTypes() {
Set<Class<?>> toReturn = setForIteration();
toReturn.addAll(Arrays.<Class<?>> asList(
Clerk.class, IntegratorUser.class, Merchant.class,