EJBException: null
Hello!
I´m developing an EJB, modifying the source code of Duke's Bank example. The method where I have is this:
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public ArrayList getReservasOfHorario(String horario)
throws InvalidParameterException {
Debug.print("ReservaControllerBean-Sesion getReservasOfHorario");
Collection t_reservas;
ArrayList reservaList = new ArrayList();
if (horario == null)
throw new InvalidParameterException("null horario");
try {
t_reservas = objReservaHome.findByHorario(horario);
if (t_reservas.isEmpty())
System.out.println("Reserva No Encontrada: Excepcion");
} catch (Exception ex) {
return reservaList;
}
try {
Iterator i = t_reservas.iterator();
while (i.hasNext()) {
Reserva objReserva2 = (Reserva)i.next();
//Debug print
System.out.println("Show iterator: " + i);
System.out.println("Show object: " + objReserva2);
//Hasta aqui
DatosReserva datos = objReserva2.getDatos();
reservaList.add(datos);
}
} catch (RemoteException ex) {
throw new EJBException("getReservasOfHorario: "
+ ex.getMessage());
}
return reservaList;
} // getReservasOfHorario
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As you can see, this is very simple and "standard" code. But I have an error, like this:
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19:57:41,203 INFO [STDOUT] Show iterator: java.util.AbstractList$Itr@ff6348
19:57:41,203 INFO [STDOUT] Show object: MyReserva:2004-04-14 19:57:41.163
19:57:41,203 ERROR [STDERR] Debug: ReservaBean-Entity ejbActivate
19:57:41,203 ERROR [LogInterceptor] TransactionRolledbackException in method: public abstract negocio.util.DatosReserva negocio.ejb.reserva.Reserva.getDatos() throws java.rmi.RemoteException, causedBy:
java.rmi.NoSuchObjectException: null; CausedByException is:
null
at org.jboss.ejb.plugins.AbstractInstanceCache.get(AbstractInstanceCache.java:116)
at org.jboss.ejb.plugins.EntityInstanceCache.get(EntityInstanceCache.java:61)
......
at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:85)
at $Proxy58.getDatos(Unknown Source)
at negocio.ejb.reserva.ReservaControllerBean.getReservasOfHorario(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
......
at java.lang.Thread.run(Thread.java:534)
19:57:41,213 ERROR [LogInterceptor] EJBException:
javax.ejb.EJBException: getReservasOfHorario: null; CausedByException is:
null; nested exception is:
java.rmi.NoSuchObjectException: null; CausedByException is:
null
at negocio.ejb.reserva.ReservaControllerBean.getReservasOfHorario(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
......
at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:85)
at $Proxy60.getReservasOfHorario(Unknown Source)
at negocio.web.ReservaJBean.populate(Unknown Source)
at negocio.web.Dispatcher.doPost(Unknown Source)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
........
at java.lang.Thread.run(Thread.java:534)
19:57:41,213 INFO [STDOUT] Excepcion remota al recoger las reservas de las 12:10: EJBException:; nested exception is:
javax.ejb.EJBException: getReservasOfHorario: null; CausedByException is:
null; nested exception is:
java.rmi.NoSuchObjectException: null; CausedByException is:
null
19:57:41,213 INFO [STDOUT]
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Anybody knows why I have this error? How can I solve it?
Thanks