org.hibernate.LazyInitializationException when de-serializing

[Troy Collinsworth]

Is there a special serializer that needs to be registered for hibernate to avoid LazyInitializationException? I found this HibernateCollectionsSerializerFactory, but it doesn't appear to be compatible.

The hibernate mappings are all set to default-lazy="false" and I've set the offending property to lazy="false" and even tried fetch="join", but it still fails with the LazyInitializationException.

org.hibernate.LazyInitializationException: failed to lazily initialize a collection, no session or session was closed

at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:380)

at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected(AbstractPersistentCollection.java:372)

at org.hibernate.collection.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:365)

at org.hibernate.collection.PersistentSet.add(PersistentSet.java:212)

at com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:109)

Kryo 2.21

Kryo serializers 0.22

Hibernate 3.3.2.GA

Kyro setup:

    kryoSerializer.setInstantiatorStrategy(new SerializingInstantiatorStrategy());

    kryoSerializer.register(Arrays.asList("").getClass(), new ArraysAsListSerializer());

    UnmodifiableCollectionsSerializer.registerSerializers(kryoSerializer);

    SynchronizedCollectionsSerializer.registerSerializers(kryoSerializer);

[Martin Grotzke]

Please try this:

kryoSerializer = new Kryo() {
@Override
public Serializer<?> getDefaultSerializer( final Class type ) {
if (AbstractPersistentCollection.class.isAssignableFrom( type )) {
return new FieldSerializer( kryoSerializer, type );
}
return super.getDefaultSerializer( type );
}
}

AbstractPersistentCollection is
org.hibernate.collection.AbstractPersistentCollection.

Cheers,
Martin

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[Troy Collinsworth]

Excellent, thanks for the quick response! Initial tests, indicate this resolved the issue.

Troy