### Question:
RegistryServerSync implements InitializingBean, DisposableBean, NotifyListener { public ConcurrentMap<String, ConcurrentMap<String, Map<String, URL>>> getRegistryCache() { return registryCache; }  ConcurrentMap<String, ConcurrentMap<String, Map<String, URL>>> getRegistryCache(); @Override void afterPropertiesSet(); @Override void destroy(); @Override void notify(List<URL> urls);  }### Answer:
@Test public void testGetRegistryCache() { registryServerSync.getRegistryCache(); }