How to use Atomikos Transaction Essentials with Hibernate >= 4.3

Question

I switched from Hibernate 4.2 to Hibernate 4.3 and my project is not working any more. I\'m getting an

HibernateException: Unable to locate current JT

Answer 1

In Hibernate 4.3 the long deprecated TransactionManagerLookup got removed. Now the JTA provider must implement org.hibernate.engine.transaction.jta.platform.spi.JtaPlatform. An abstract implementation of JTA Platform is already available within Hibernate namely org.hibernate.engine.transaction.jta.platform.internal.AbstractJtaPlatform. Using this it is quite simple to write a JTA Platform for Atomikos:

package test;

import javax.transaction.TransactionManager;
import javax.transaction.UserTransaction;
import org.hibernate.engine.transaction.jta.platform.internal.AbstractJtaPlatform;
import com.atomikos.icatch.jta.UserTransactionManager;

public class AtomikosJtaPlatform extends AbstractJtaPlatform {

  private static final long serialVersionUID = 1L;
  private UserTransactionManager utm;

  public AtomikosJtaPlatform() {
    utm = new UserTransactionManager();
  }

  @Override
  protected TransactionManager locateTransactionManager() {
    return utm;
  }

  @Override
  protected UserTransaction locateUserTransaction() {
    return utm;
  }
}

In addition the name of the platform implementation class must be added to the hibernate configuration:

test.AtomikosJtaPlatform