I have a facade (Stateless) and a DAO (stateless) @Stateless @Local(HotelService.class) @Remote(HotelService.class) public class HotelServiceBean implements HotelService { @EJB private HotelDao hotelDao; public List findAllHotels() { return hotelDao.findAllHotels(); } public Hotel saveHotel(Hotel newHotel) { Hotel hotel = hotelDao.saveHotel(newHotel); String test = null; if(test == null){ throw new RuntimeException(); } return hotel; } } As you can see after the dao save the record i throw an exception , but the record was save to the DB and roll back was not executed. DS: <?xml version="1.0" encoding="UTF-8"?> <!-- $Id: mysql-ds.xml 41016 2006-02-07 14:23:00Z acoliver $ --> <!-- Datasource config for MySQL using 3.0.9 available from: http://www.mysql.com/downloads/api-jdbc-stable.html --> <local-tx-datasource> <jndi-name>TestDS</jndi-name> <connection-url>jdbc:mysql://localhost:3306/test</connection-url> <driver-class>com.mysql.jdbc.Driver</driver-class> <user-name>test</user-name> 1234 <exception-sorter-class-name>org.jboss.resource.adapter.jdbc.vendor.MySQLExceptionSorter</exception-sorter-class-name> <!-- should only be used on drivers after 3.22.1 with "ping" support <valid-connection-checker-class-name>org.jboss.resource.adapter.jdbc.vendor.MySQLValidConnectionChecker</valid-connection-checker-class-name> --> <!-- sql to call when connection is created <new-connection-sql>some arbitrary sql</new-connection-sql> --> <!-- sql to call on an existing pooled connection when it is obtained from pool - MySQLValidConnectionChecker is preferred for newer drivers <check-valid-connection-sql>some arbitrary sql</check-valid-connection-sql> --> <!-- corresponding type-mapping in the standardjbosscmp-jdbc.xml (optional) --> <type-mapping>mySQL</type-mapping> </local-tx-datasource> Perssistence.xml <persistence-unit name="Demo"> <jta-data-source>java:/TestDS</jta-data-source> </persistence-unit> Thank you very much!!!!!! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4054073#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...