I m facing exactly the same problem with Oracle database too.
EntityManager.find() method is not able to find the entity in the database.
In the session bean before firing a message to a queue, I m persisting some
data using EntityManager.persist() . and MDB on receiving the message, tries to
fetch the data from the DB.
Initially I doubted that, may be the entityManager.persist is not commiting the
data into the DB. But then I put the code which persist the data in session
bean in a new transaction, this transaction is done even before the session
bean fires the message into the queue thus making sure that data is commited
into the database. (Even checked manually that data is available in DB). But
still EntityManager.find() is not able to find the data in the DB.
This is how I m persisting the data
@TransactionAttribute(TransactionAttributeType.REQUIRES_NEW)
private void updateTradeFormGenerationStatus(String tradeFormRequestID, String
formID, String locale) {
FormattedDocument fd = new FormattedDocument(tradeFormRequestID);
fd.setAForm(formID);
fd.setAFormLanguage(localeConvertor.getLanguage(locale));
fd.setADocumentStatus(Constants.TRADEFORM_STATUS_PEN);
em.persist(fd);
em.flush();
}
Looks like this is a bug in the database connectivity implementation of JBoss
404GA.
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