HHH-16117 Querying entity with collection in Embeddable causes 'A collection with cascade=all-delete-orphan was no longer referenced by the owning entity instance'

hibernate-core/src/main/java/org/hibernate/action/internal/AbstractEntityInsertAction.java

@@ -18,10 +18,13 @@ import org.hibernate.engine.spi.EntityKey;
 import org.hibernate.engine.spi.PersistenceContext;
 import org.hibernate.engine.spi.Status;
 import org.hibernate.event.spi.EventSource;
+import org.hibernate.metamodel.mapping.AttributeMapping;
 import org.hibernate.metamodel.mapping.NaturalIdMapping;
 import org.hibernate.metamodel.mapping.PluralAttributeMapping;
+import org.hibernate.metamodel.mapping.internal.EmbeddedAttributeMapping;
 import org.hibernate.persister.collection.CollectionPersister;
 import org.hibernate.persister.entity.AbstractEntityPersister;
+import org.hibernate.persister.entity.AttributeMappingsList;
 import org.hibernate.persister.entity.EntityPersister;
 
 import static org.hibernate.engine.internal.Versioning.getVersion;
@@ -148,9 +151,56 @@ public abstract class AbstractEntityInsertAction extends EntityAction {
 
 	protected void addCollectionsByKeyToPersistenceContext(PersistenceContext persistenceContext, Object[] objects) {
 		for ( int i = 0; i < objects.length; i++ ) {
-			if ( objects[i] instanceof PersistentCollection<?> ) {
+			final AttributeMapping attributeMapping = getPersister().getAttributeMapping( i );
-				final PersistentCollection<?> persistentCollection = (PersistentCollection<?>) objects[i];
+			if ( attributeMapping.isEmbeddedAttributeMapping() ) {
-				final CollectionPersister collectionPersister = ( (PluralAttributeMapping) getPersister().getAttributeMapping( i ) ).getCollectionDescriptor();
+				visitEmbeddedAttributeMapping(
+						attributeMapping.asEmbeddedAttributeMapping(),
+						objects[i],
+						persistenceContext
+				);
+			}
+			else if ( attributeMapping.isPluralAttributeMapping() ) {
+				addCollectionKey(
+						attributeMapping.asPluralAttributeMapping(),
+						objects[i],
+						persistenceContext
+				);
+			}
+		}
+	}
+
+	private void visitEmbeddedAttributeMapping(
+			EmbeddedAttributeMapping attributeMapping,
+			Object object,
+			PersistenceContext persistenceContext) {
+		if ( object != null ) {
+			final AttributeMappingsList attributeMappings = attributeMapping.getEmbeddableTypeDescriptor().getAttributeMappings();
+			for ( int i = 0; i < attributeMappings.size(); i++ ) {
+				final AttributeMapping attribute = attributeMappings.get( i );
+				if ( attribute.isPluralAttributeMapping() ) {
+					addCollectionKey(
+							attribute.asPluralAttributeMapping(),
+							attribute.getPropertyAccess().getGetter().get( object ),
+							persistenceContext
+					);
+				}
+				else if ( attribute.isEmbeddedAttributeMapping() ) {
+					visitEmbeddedAttributeMapping(
+							attribute.asEmbeddedAttributeMapping(),
+							attribute.getPropertyAccess().getGetter().get( object ),
+							persistenceContext
+					);
+				}
+			}
+		}
+	}
+
+	private void addCollectionKey(
+			PluralAttributeMapping pluralAttributeMapping,
+			Object o,
+			PersistenceContext persistenceContext) {
+		if ( o instanceof PersistentCollection ) {
+			final CollectionPersister collectionPersister = pluralAttributeMapping.getCollectionDescriptor();
 			final CollectionKey collectionKey = new CollectionKey(
 					collectionPersister,
 					( (AbstractEntityPersister) getPersister() ).getCollectionKey(
@@ -160,8 +210,10 @@ public abstract class AbstractEntityInsertAction extends EntityAction {
 							getSession()
 					)
 			);
-				persistenceContext.addCollectionByKey( collectionKey, persistentCollection );
+			persistenceContext.addCollectionByKey(
-			}
+					collectionKey,
+					(PersistentCollection<?>) o
+			);
 		}
 	}
 

hibernate-core/src/main/java/org/hibernate/action/internal/EntityInsertAction.java

@@ -100,7 +100,7 @@ public class EntityInsertAction extends AbstractEntityInsertAction {
 			final EntityPersister persister = getPersister();
 			final Object instance = getInstance();
 			persister.insert( id, getState(), instance, session );
-			PersistenceContext persistenceContext = session.getPersistenceContextInternal();
+			final PersistenceContext persistenceContext = session.getPersistenceContextInternal();
 			final EntityEntry entry = persistenceContext.getEntry( instance );
 			if ( entry == null ) {
 				throw new AssertionFailure( "possible non-threadsafe access to session" );

hibernate-core/src/main/java/org/hibernate/metamodel/mapping/AttributeMapping.java

@@ -6,6 +6,7 @@
  */
 package org.hibernate.metamodel.mapping;
 
+import org.hibernate.metamodel.mapping.internal.EmbeddedAttributeMapping;
 import org.hibernate.property.access.spi.PropertyAccess;
 import org.hibernate.sql.results.graph.DatabaseSnapshotContributor;
 import org.hibernate.sql.results.graph.Fetchable;
@@ -92,4 +93,30 @@ public interface AttributeMapping
 		return this;
 	}
 
+	/**
+	 * A utility method to avoid casting explicitly to PluralAttributeMapping
+	 *
+	 * @return PluralAttributeMapping if this is an instance of PluralAttributeMapping otherwise {@code null}
+	 */
+	default PluralAttributeMapping asPluralAttributeMapping() {
+		return null;
+	}
+
+	default boolean isPluralAttributeMapping() {
+		return false;
+	}
+
+	/**
+	 * A utility method to avoid casting explicitly to EmbeddedAttributeMapping
+	 *
+	 * @return EmbeddedAttributeMapping if this is an instance of EmbeddedAttributeMapping otherwise {@code null}
+	 */
+	default EmbeddedAttributeMapping asEmbeddedAttributeMapping(){
+		return null;
+	}
+
+	default boolean isEmbeddedAttributeMapping(){
+		return false;
+	}
+
 }

hibernate-core/src/main/java/org/hibernate/metamodel/mapping/PluralAttributeMapping.java

@@ -175,4 +175,14 @@ public interface PluralAttributeMapping
 			SqlAstCreationState creationState) {
 		getCollectionDescriptor().applyWhereRestrictions( predicateConsumer, tableGroup, useQualifier, creationState );
 	}
+
+	@Override
+	default PluralAttributeMapping asPluralAttributeMapping() {
+		return this;
+	}
+
+	@Override
+	default boolean isPluralAttributeMapping() {
+		return true;
+	}
 }

hibernate-core/src/main/java/org/hibernate/metamodel/mapping/internal/EmbeddedAttributeMapping.java

@@ -437,4 +437,14 @@ public class EmbeddedAttributeMapping
 		}
 		return parentInjectionAttributePropertyAccess;
 	}
+
+	@Override
+	public EmbeddedAttributeMapping asEmbeddedAttributeMapping() {
+		return this;
+	}
+
+	@Override
+	public boolean isEmbeddedAttributeMapping() {
+		return true;
+	}
 }