Spring IllegalStateException: A JTA EntityManager cannot use getTransaction()

Question

So after a big refactoring project, I am left with this exception and am unsure as how to correct it. It\'s dealing with some code that I did not write and I am unfamiliar w

Answer 1

The problem is your configuration. You have hibernate configured for JTA.

Whereas you are using local transactions instead of distributed transactions.

at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:380)

You have 2 possible solutions

1. remove the JpaTransactionManager and replace it with a JTA transaction manager
2. remove the remove the hibernate.transaction.manager_lookup_class from the hibernate settings.

If you don't really need distributed transactions option 2 is the easiest, if you need distributed transactions simply adding will setup a proper JTA tx manager for your environment. Remove the definition for the JpaTransactionManager.

Update:

Your configuration is flawed in 2 ways.

1. Your EntityManager configuration already contains a jndi lookup for the datasource, which you override in your applicationContext by configuring a local datasource
2. You have both a and JpaTransactionManager which one do you want to use? At the moment the latter is overriding the first one.

Create 2 seperate configurations one for local testing and one for production using JTA en JNDI lookups. (Preferable your testing code only overrides the beans necessary).