StatefulPersistentContext.java

	@Override
	public void evictNaturalIdResolution(EntityPersister persister, final Serializable pk, Object[] naturalIdValues) {
		if ( !persister.hasNaturalIdentifier() ) {
			throw new IllegalArgumentException( "Entity did not define a natrual-id" );
		}
		if ( naturalIdValues != null && persister.getNaturalIdentifierProperties().length != naturalIdValues.length ) {
			throw new IllegalArgumentException( "Mismatch between expected number of natural-id values and found." );
		}

		NaturalIdResolutionCache entityNaturalIdResolutionCache = naturalIdResolutionCacheMap.get( persister );
		if ( entityNaturalIdResolutionCache != null ) {
			LocalNaturalIdCacheKey localNaturalIdCacheKey = entityNaturalIdResolutionCache.pkToNaturalIdMap.remove( pk );
			
			if ( localNaturalIdCacheKey == null && naturalIdValues == null ) {
				// No pk->LocalNaturalIdCacheKey cached in session, without naturalIdValues nothing more can be done
				return;
			}

			if ( localNaturalIdCacheKey == null ) {
				// No pk->LocalNaturalIdCacheKey cached in session but we have naturalIdValues, create LocalNaturalIdCacheKey
				// and evict that
				localNaturalIdCacheKey = new LocalNaturalIdCacheKey( persister, naturalIdValues );
			}
			else if ( naturalIdValues == null ) {
				// Found pk->LocalNaturalIdCacheKey cached in session but we don't have naturalIdValues, populate them from
				// the session cache so the 2L cache can be evicted
				naturalIdValues = localNaturalIdCacheKey.getValues();
			}
			
			entityNaturalIdResolutionCache.naturalIdToPkMap.remove( localNaturalIdCacheKey );
		}

		if ( persister.hasNaturalIdCache() ) {
			final NaturalIdRegionAccessStrategy naturalIdCacheAccessStrategy = persister.getNaturalIdCacheAccessStrategy();
			final NaturalIdCacheKey naturalIdCacheKey = new NaturalIdCacheKey( naturalIdValues, persister, session );
			naturalIdCacheAccessStrategy.evict( naturalIdCacheKey );
		}
	}