jboss 7.1 how to solve "Blobs may not be accessed after serialization" error with hibernate 4

[matukituki]

Hi,

I'm migrating an application from JBoss 5.1 to JBoss 7.1.

I'm facing the following problem "Blobs may not be accessed after serialization". I had solved the problem in JBoss 5.1 using org.hibernate.lob.SerializableBlob class.

The hibernate4 jars used by JBoss 7.1 do not contain this class.

I have seen through the classes of the org.hibernate.engine.jdbc package of the hibernate-core-4.0.1.Final.jar bunbled with the JBoss 7.1 and I have tried the following with no luck:

NonContextualLobCreator lobCreator = NonContextualLobCreator.INSTANCE;
WrappedBlob blobSerialized = (WrappedBlob) lobCreator.wrap((Blob) result[1]);
Blob theBlob = blobSerialized.getWrappedBlob();

But I'm getting the same error when retrieving  the binary stream from the blob variable

theBlob.getBinaryStream()...

I have google it for two days but I couldn't find something useful.

I have also tried in the hibernate forums.

Any help would be appreciated.

Thanks.

[matukituki]

It was a EJB remote invokation problem.

Retrieving the blob from a local EJB works perfectly.

[bondchan921]

Hi Daniel,

I have the same issue as you, I'm using Jboss 5.1.2.EAP

1)Could you detailed your changes to resove this exception in jboss 5? someone said

   "This is pretty much just a limitation of JDBC blobs. They may not be accessed outside the txn they were retrieved in."

2)For you jboss 7, call from local intercface works, but why remote interface not work?

Sorry for bring this up 2 years later...:D

[matukituki]

Hi Bond,

On JBoss 5 I also get the blob through a local ejb call using the org.hibernate.lob.SerializableBlob class.

I don't know why this not work on JBoss 7 ejb remote calls.