### Question:
NonstrictReadWriteNaturalIdRegionAccessStrategy extends BaseNaturalIdMemcachedRegionAccessStrategy { @Override public boolean afterUpdate(Object key, Object value, SoftLock lock) throws CacheException { log.debug("region access strategy nonstrict-read-write naturalId afterUpdate() {} {}", getInternalRegion().getCacheNamespace(), key); getInternalRegion().evict(key); return false; } NonstrictReadWriteNaturalIdRegionAccessStrategy(NaturalIdMemcachedRegion naturalIdMemcachedRegion); @Override boolean insert(Object key, Object value); @Override boolean afterInsert(Object key, Object value); @Override boolean update(Object key, Object value); @Override boolean afterUpdate(Object key, Object value, SoftLock lock);  }### Answer:
@Test public void afterUpdate() throws Exception { assertThat(nonstrictReadWriteNaturalIdRegionAccessStrategy.afterUpdate("key", "value", null)).isFalse(); verify(naturalIdMemcachedRegion).evict("key"); }