I have the error below which happens during a call to e EJB3 SFSB. There is no
explicit rollback happening in the code and the session is (obviously) managed
by the container. I am using JBoss 4.0.4GA.
| 2006-07-17 06:02:05,374 ERROR [org.hibernate.LazyInitializationException]
failed to lazily initialize a collection of role:
org.ictrace.server.pm.DMWeightGroupTotalBean.batches, no session or session was
closed
| org.hibernate.LazyInitializationException: failed to lazily initialize a
collection of role: org.ictrace.server.pm.DMWeightGroupTotalBean.batches, no
session or session was closed at
org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:358)
at
org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected(AbstractPersistentCollection.java:350)
at
org.hibernate.collection.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:343)
at
org.hibernate.collection.AbstractPersistentCollection.read(AbstractPersistentCollection.java:86)
at org.hibernate.collection.PersistentBag.iterator(PersistentBag.java:246)
at package.WeightMediatorBaseEx.addWGTBatch(WeightMediatorBaseEx.java:359)
at ...
|
The code where the exception is invoced looks like this :
| private void addWGTBatch( DMWeightGroupTotalBean obj, String batchRef )
| throws UnidConstraintViolation
| {
| if ( obj == null || batchRef == null ) return;
| try
| {
| Collection<DMWeightGroupTotal_BatchesBean> batches =
obj.getBatches();
| if ( batches == null )
| {
| batches = new ArrayList<DMWeightGroupTotal_BatchesBean>();
| obj.setBatches( batches );
| }
| // check if the object already exists
| for ( DMWeightGroupTotal_BatchesBean bb : batches ) // error is
reported on this line
| {
| if ( batchRef.equals( bb.getBatches() ) ) return;
| }
| batches.add( new DMWeightGroupTotal_BatchesBean( batchRef ) );
| obj.modified();
| }
| catch ( Exception ex )
| {
| throw new UnidConstraintViolation(
UCV_PROBLEM_WHEN_ADDING_BATCH_TO_THE_TOTAL_LINE, batchRef, ex );
| }
| }
|
Does anybody have any idea what is causing this error and how I can fix / work
around it?
Thanks,
Joachim
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