hibernate/hibernate-orm · error · ObjectDeletedException

deleted instance passed to merge

Error message

deleted instance passed to merge

What it means

Error "deleted instance passed to merge" thrown in hibernate/hibernate-orm.

Source

Thrown at hibernate-core/src/main/java/org/hibernate/event/internal/DefaultMergeEventListener.java:219

				entityIsTransient( event, copiedId != null ? copiedId : originalId, copiedAlready );
				break;
			case PERSISTENT:
				entityIsPersistent( event, copiedAlready );
				break;
			default: //DELETED
				if ( persistenceContext.getEntry( entity ) == null ) {
					final var persister = source.getEntityPersister( entityName, entity );
					assert persistenceContext.containsDeletedUnloadedEntityKey(
							source.generateEntityKey(
									persister.getIdentifier( entity, event.getSession() ),
									persister
							)
					);
					source.getActionQueue().unScheduleUnloadedDeletion( entity );
					entityIsDetached( event, copiedId, originalId, copiedAlready );
					break;
				}
				throw new ObjectDeletedException( "deleted instance passed to merge",
						originalId, getLoggableName( entityName, entity ) );
		}
	}

	@Nonnull
	private static Object copyCompositeTypeId(
			@Nullable Object id,
			@Nonnull CompositeType compositeType,
			@Nonnull EventSource session,
			@Nonnull MergeContext mergeContext) {
		final var factory = session.getSessionFactory();
		final Object idCopy = compositeType.deepCopy( id, factory );
		final Type[] subtypes = compositeType.getSubtypes();
		final Object[] propertyValues = compositeType.getPropertyValues( id );
		final Object[] copiedValues = compositeType.getPropertyValues( idCopy );
		for ( int i = 0; i < subtypes.length; i++ ) {
			copiedValues[i] = copy( session, mergeContext, subtypes[i], propertyValues[i], factory );
		}

View on GitHub (pinned to fad1729dce)

Solutions

1. Do not call merge() on an entity that was deleted in the current session; remove the deleted instance from associations instead.
2. Reload the entity from the database if it must be re-saved after deletion.

When it happens

Trigger: Thrown when an instance already marked for removal is reached again through cascading.

Common situations: Typical situations: a deleted entity still referenced from a collection of another managed entity; orphan-removal plus explicit delete of the same instance.

AI-assisted analysis of hibernate/hibernate-orm@fad1729dce (2026-08-22). Data as JSON: /api/errors/8398c1ca15840b3a. Report an issue: GitHub.