Updating a legacy Hibernate 4 to latest 5.4.15 version resulted in an odd exception when saving the audit record for a record. Turning up the debugging reveals that the actual save of the record appears to proceed correctly, and then when envers begins to save it's audit entry, the Lazy initialization exception occurs.

Save RelatedToTaskEntity cascades to save TaskEntity, which then moves onto the Owner entity where the exception occurs. I looked at HHH-13191 Closed but toggling the proxy compliance mode didn't seem to effect it. Hibernate 5.4.1 and 5.4.10 work, it appears to have broken in 5.4.11. Looking through the release notes, maybe HHH-13760 Closed is related?

RelatedToTaskEntity

@Audited
@Entity
public class RelatedToTaskEntity extends BaseDO<Integer> {

private static final long serialVersionUID = 60222696142150246L;

@javax.persistence.Column(name = "RELATED_TO_TASK_ID")
@Id
@Getter
@Setter
@SequenceGenerator(name = "RELATED_TO_TASK_ID_GENERATOR", sequenceName = "SQ_RELATED_TO_TASK", allocationSize = 1)
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "RELATED_TO_TASK_ID_GENERATOR")
private Integer relatedToTaskId;

@Getter
@Setter
@Audited(targetAuditMode = RelationTargetAuditMode.NOT_AUDITED)
@ManyToOne
@JoinColumn(name = "TASK_CD")
private TaskEntity task;

TaskEntity

@Table(name = "TASK")
@Audited
@Entity
@Inheritance(strategy = InheritanceType.JOINED)
@NamedQueries(

Unknown macro: { @NamedQuery(name = "getActiveTasksByShopAndCostClass", query = "SELECT t FROM TaskEntity t WHERE t.closedDate is null and t.benefitingShopCd = ?0 and t.costClassCd = ?1"), @NamedQuery(name = "getActiveTasksBySiteAndTeamAndCostClass", query = "SELECT t FROM TaskEntity t, UserInfoEntity u WHERE t.ownerId = u.userId and u.shop.site.siteId = ?0 and t.closedDate is null and t.team.teamId = ?1 and t.costClassCd = ?2") }

)
public class TaskEntity extends BaseDO<Long> {
@NotAudited
private static final long serialVersionUID = -5071999821653470382L;

@Getter
@Setter
@Column(name = "TASK_ID")
@Id
@SequenceGenerator(name = "TASK_ID_GENERATOR", sequenceName = "SQ_TASK", allocationSize=1)
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "TASK_ID_GENERATOR")
private Long id;

@Getter
@Setter
@Audited(targetAuditMode = RelationTargetAuditMode.NOT_AUDITED)
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "OWNER_CD", referencedColumnName = "USER_ID", updatable = false, insertable = false)
private UserInfoEntity owner;