Hi everybody! I've got 2 problems I'd like to helped with.
I'm just startet working with JBoss and I'm using the 4.0.4RC1 version of it. During the start up i get the following warning output: WARN [TreeCache] No transaction manager lookup class has been defined. Transactions cannot be used 1.) Now where can I define this transaction manager look up class? And I'm trying to inject an EntityManager into a stateless Session Bean. However, I don't get an instance of it. I've written a persistence.xml file :<persistence xmlns="http://java.sun.com/xml/ns/persistence"; | xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; | xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"; | version="1.0"> | <persistence-unit name="persistenceSample"> | <provider>org.hibernate.ejb.HibernatePersistence</provider> | <jta-data-source>java:/DefaultDS</jta-data-source> | <properties> | <property name="hibernate.dialect" | value="org.hibernate.dialect.HSQLDialect" /> | <property name="hibernate.hbm2ddl.auto" value="create-drop" /> | </properties> | </persistence-unit> | </persistence> And in the bean class I'm trying to inject an EntityManager [EMAIL PROTECTED](unitName="persistenceSample") | private EntityManager manager; But, I already get a Waring from JBoss when deploying the beans, which I've put into a jar file. WARN [ServiceController] Problem starting service persistence.units:jar=DistSampleBeans.jar.jar,unitName=persistenceSample java.lang.reflect.InvocationTargetException ... lots of method names where the exception goes up the call stack ... Does this have something to do with the fact that no Transaction Manager look-up class has been defined? I tried to get an instance of the EntityManager by using an EntityManagerFactory as well: Map<String, String> properties = new HashMap<String, String>(); | EntityManagerFactory emf = Persistence | .createEntityManagerFactory("persistenceSample", properties); | | EntityManager manager = emf.getEntityManager(); Either with or without the properties Map --> no success. The outcome is a NullPointerException. 2.) What am I doing wrong? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3935445#3935445 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3935445 ------------------------------------------------------- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642 _______________________________________________ JBoss-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/jboss-user
