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system exception occurred during an invocation on EJB GuestDao

occurred during an invocation on EJB GuestDao, method: public java.util.List guest.GuestDao.getAllGuests() 2014-09-01T19:09:01.324+0200|Avertissement: javax.ejb.EJBException at com.sun.ejb ... ) at com.sun.ejb.containers.EJBContainerTransactionManager.completeNewTx(EJBContainerTransactionManager

ObjectDB with JRebel: copious 'Not Enhanced:' errors with EJBs

JRebel I am getting copious server log output for nearly every @EJB on startup. Typical message ... : com/example/ejb/query/__EJB31_Generated__ExampleQuery__Intf__: com.objectdb.o.TEX: Type com.example.ejb.query.__EJB31_Generated__ExampleQuery__Intf__ is not found at com.objectdb.o.MSG.e(MSG.java:108

How to package orm.xml when using EJB in WAR?

correctly copies META-INF and all contents into the root of jar file when the (EJB) project is built. When that EJB is deployed to e.g. GlassFish 3.1.1 all apperar to be OK ... EJB is built and deployed, this error message pops up: Caused by

Issue deploying EJB project to Jboss/Glassfish

I have been trying to deploy an EJB project created in Eclipse/Juno to both JBOSS and Glassfish.  The error I get with Glassfish is cannot Deploy HappyThought Deployment Error for module: HappyThought: Error occurred during deployment: Exception while preparing

Step 3: Define an EJB Session Bean

Operations on the database will be performed by an instance of a session bean (EJB ... Next. Enter GuestDao as the EJB class name - use ... bean (EJB) class.

Step 3: Define an EJB Session Bean

Operations on the database will be performed by an instance of a session bean (EJB ... bean (EJB) class. ejb.png" style="display: block; margin-left: auto; margin-right: auto;">

Once served to JSF page via @EJB query bean, many list fields are null (but same query ok after fresh persist in @PostConstruct)

via a querying @EJB gives many fields null (and not even empty, I mean truly null). In ... whether or not I perform the above post-construct query. When I serve the query via and @EJB ... as null (!). The query is performed by an @EJB: @Stateless public class

objectdb-2.6.9_06: Extended Persistence Context fails: 'Attempt to begin a new transaction when a transaction is active'

> Set DO_FORCE_COMMIT_AFTER_BUILD = false in com.greensoft.objectdb.test.mini.ejb ... All_ { @EJB private ExtProjectBuilder builder; @PostConstruct public void createData ... project 2 { ... Warning: A system exception occurred during an invocation on EJB ExtProjectBuilder

Step 4: Add a Servlet Class

.ejb.EJB; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet ... ; // Injected DAO EJB: @EJB GuestDao guestDao; @Override protected void doGet ... with the @EJB annotation). The next step is

Step 4: Add a Servlet Class

guest; import java.io.IOException; import javax.ejb.EJB; import javax.servlet.ServletException ... { private static final long serialVersionUID = 1L; // Injected DAO EJB: @EJB GuestDao guestDao ... automatically (since the field is marked with the @EJB annotation). The next step