Add items, that contains join column with lazy loading inside, into table

General
1

Hello,
I need to add items form local DB, with I get using hibernate, into table. Problem is quite simple I have one object with contains join field with fetch = FetchType.LAZY and when I try to add item collection from DB response into vaadin table, get hibernate error (org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role).


Collection<ItemInfoCollection> collection = itemInfoService.fetch(code);
BeanItemContainer<ItemInfoCollection> containerDataSource = (BeanItemContainer<ItemInfoCollection>) this.getContainerDataSource();
containerDataSource.addAll(collection);

public class TimetableInfo {
	private String id;
	private Set<Item> items = new LinkedHashSet<Item>(0);
	...
}

public class Item{
	...
	@ManyToOne(fetch = FetchType.LAZY, optional = true)
	@JoinColumn(name = "execution_info_id", nullable = true)
	public ExecutionInfo getExecutionInfo() {
		return executionInfo;
	}
}

public class ExecutionInfo{
	...
	@OneToMany(fetch = FetchType.LAZY, cascade = CascadeType.ALL, orphanRemoval = true, mappedBy = "executionInfo")
	@OrderBy("startAt")
	public Set<Item> getExecutedItems() {
		return executedItems;
	}
}

I want to know it is possible to solve this issue by using any of vaadin add-ons, or only creating extra object with will be mapped from original DB object and already contains all data without lazy loading can solve it.