Hi there,
using bytecode enhancement with enableDirtyTracking=true and enabled second level cache, I'm encountering lazy init exceptions when the enhanced codes tries to clear the dirty attributes:
{noformat}
org.hibernate.LazyInitializationException: failed to lazily initialize a collection, no session or session was closed
at org.hibernate.collection.internal.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:582)
at org.hibernate.collection.internal.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected(AbstractPersistentCollection.java:574)
at org.hibernate.collection.internal.AbstractPersistentCollection.access$200(AbstractPersistentCollection.java:55)
at org.hibernate.collection.internal.AbstractPersistentCollection$1.doWork(AbstractPersistentCollection.java:165)
at org.hibernate.collection.internal.AbstractPersistentCollection$1.doWork(AbstractPersistentCollection.java:146)
at org.hibernate.collection.internal.AbstractPersistentCollection.withTemporarySessionIfNeeded(AbstractPersistentCollection.java:247)
at org.hibernate.collection.internal.AbstractPersistentCollection.readSize(AbstractPersistentCollection.java:145)
at org.hibernate.collection.internal.PersistentSet.size(PersistentSet.java:143)
at com.sobis.jaf.model.security.sid.JafSid.$$_hibernate_clearDirtyCollectionNames(JafSid.java)
at com.sobis.jaf.model.security.sid.JafSid.$$_hibernate_clearDirtyAttributes(JafSid.java)
at org.hibernate.tuple.entity.PojoEntityTuplizer.afterInitialize(PojoEntityTuplizer.java:297)
at org.hibernate.persister.entity.AbstractEntityPersister.afterInitialize(AbstractEntityPersister.java:4659)
at org.hibernate.engine.internal.TwoPhaseLoad.doInitializeEntity(TwoPhaseLoad.java:284)
at org.hibernate.engine.internal.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:128)
at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:1152)
at org.hibernate.loader.Loader.processResultSet(Loader.java:1011)
at org.hibernate.loader.Loader.doQuery(Loader.java:949)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:341)
at org.hibernate.loader.Loader.doList(Loader.java:2692)
at org.hibernate.loader.Loader.doList(Loader.java:2675)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2507)
at org.hibernate.loader.Loader.list(Loader.java:2502)
at org.hibernate.loader.criteria.CriteriaLoader.list(CriteriaLoader.java:109)
at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1897)
at org.hibernate.internal.CriteriaImpl.list(CriteriaImpl.java:370)
at com.sobis.jaf.tests.setup.DatabasePopulation.startBasicSetup(DatabasePopulation.java:122){noformat}
This error always happens after clearing the persistence context (either manually or when doing a commit) when the authority is reloaded:
{code:java}
Authority a = new Authority();
JafSid sid = new JafSid().setSid("sid!");
sid.setRelatedEntity(a);
sid.setClassType("type!");
a.setClassType("type");
a.setSid(sid);
a.setAuthority("name");
$session().save(a);
$session().flush();
$session().clear();
//throws exception in next line!
LOGGER.error("auth: {}", $session().get(Authority.class, a.getId()));
{code}
where
{code:java}
@Entity
public class Authority extends SidEntity<BOUser> {
(...)
}
{code}
where SidEntity is
{code:java}
@Entity
@Table(name = SidEntity.TABLE)
public abstract class SidEntity<BO extends BOSidEntity<? extends SidEntity<BO>>> extends Base<BO> {
(...)
private JafSid sid;
(...)
@OneToOne(mappedBy = JafSid.RELATED_ENTITY, optional = false, fetch = FetchType.EAGER, orphanRemoval = true)
@IndexedEmbedded(depth = 1, prefix = SID + JSONFieldDefinition.MODEL_SUFFIX)
@Cascade(CascadeType.ALL)
public JafSid getSid() {
return sid;
}
(...)
}
where JafSid is
{code:java}
public class JafSid extends Base<BOJafSid> implements Sid {
(...)
private Set<UserGroup> groups = new LinkedHashSet<>();
(...)
@IndexedEmbedded(depth = 1, prefix = GROUPS + JSONFieldDefinition.MODEL_SUFFIX)
@ManyToMany(mappedBy = UserGroup.MEMBERS)
@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
public Set<UserGroup> getGroups() {
return groups;
}
{code}
The issue happens in TwoPhaseLoad.doInitializeEntity, when the hydrated state of JafSid is resolved.
!image-2018-03-22-16-47-49-937.png|thumbnail!
The collection that needs to be taken from this.xrefLoadingCollectionEntries throws the LazyInitializationException.
Maybe this already gives enough clues. As the inheritance structure of the entities is quite difficult, I wasn't able to prepare an isolated test case yet, but maybe this already helps to fix the issue. |
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