EJB Entity/Session Transaction error

Question

I am getting an error from a Session EJB trying to update two distinct Entity EJB's. From the session bean I open a transaction and create two entity objects. But immediately after trying to create the first one I get the following message:
com.evermind.server.rmi.OrionRemoteException: Error allocating db connection: java.sql.SQLException: Calling setAutoCommit(true) on a Connection is not allowed during a global transaction.; nested exception is: java.sql.SQLException: Calling setAutoCommit(true) on a Connection is not allowed during a global transaction.
at com.evermind.server.ApplicationServerTransactionSynchronization.getConnection(ApplicationServerTransactionSynchronization.java:408)
at CWUsuariosHome_EntityHomeWrapper20.create(CWUsuariosHome_EntityHomeWrapper20.java:535)
at com.saniline.catweb.ejb.session.usuarios.UsuariosSessionBean.InsertarUsuario(UsuariosSessionBean.java:59)
at UsuariosSession_StatelessSessionBeanWrapper2.InsertarUsuario(UsuariosSession_StatelessSessionBeanWrapper2.java:81)
at com.saniline.catweb.servlet.ASS.ASS_editSSUserServlet.doPageService(ASS_editSSUserServlet.java:153)
at com.saniline.catweb.servlet.CatalogoWebServlet.doPageService(CatalogoWebServlet.java:168)
at com.saniline.snfw.servlet.SnFwSessionServlet.doPageService(SnFwSessionServlet.java:83)
at com.saniline.snfw.servlet.SnFwServlet.service(SnFwServlet.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.saniline.snfw.servlet.SnFwServlet.service(SnFwServlet.java:54)
at com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:65)
at oracle.security.jazn.oc4j.JAZNFilter.doFilter(Unknown Source)
at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:663)
at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:330)
at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:830)
at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:285)
at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:126)
at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:192)
at java.lang.Thread.run(Thread.java:534)
I am using JDeveloper 10.1.2.1.

Answer 1

I am using CMP Entity beans. These have their methods specified as "Supports" and the Session Bean (Stateless) has its method as "Required".
I am using the container within the embeded OC4J server for debuging.
The transaction is created within the Session Bean as:
// Get a new transaction instance from session context
UserTransaction ut = sctx.getUserTransaction();
try {
// begin transaction
ut.begin();
// Current time
Timestamp currentTime = new Timestamp(new Date().getTime());
// Insert record in CWUsuarios
CWUsuarios newCWUsuarios = getCWUsuariosHome().create(null,
cwUsuario.getLogin(), cwUsuario.getPassword(),
cwUsuario.getNombre(), cwUsuario.getApellidos(),
currentTime, currentTime, cwUsuario.getActivo(),
cwUsuario.getRoot(), cwUsuario.getIdperfil());
// Insert record in CWPreferencias
CWPreferencias newCWPreferencias = getCWPreferenciasHome()
.create(newCWUsuarios.getIdusuario(),
cwPreferencias.getCodigoidioma(),
cwPreferencias.getIdtema(),
cwPreferencias.getNregslistados());
however after returning form the getCWUsuariosHome().create method i get the specified error message.
Thanks.