Problems if i try to access the members

[jual]

Hello together

I have a findByName method that returns a Collection of LocalRemotes.
findByName works well but when i try to read the membervalues through the getMethods()
like this one:

Iterator i =collection.iterator();

 List resultList = new ArrayList();

 PersonLocal entity = null;
 while (i.hasNext())
 {

 entity =(PersonLocal) i.next();

 entity.getID();
 entity.getName()
 }

i get this kind of exception:

org.jboss.tm.JBossTransactionRolledbackException: null; CausedByException is:
null; CausedByException is:
null; CausedByException is:
null; nested exception is:
javax.ejb.EJBException: null; CausedByException is:
null; - nested throwable: (javax.ejb.EJBException: null; CausedByException is:
null)
at org.jboss.ejb.plugins.LogInterceptor.handleException(LogInterceptor.java:262)
at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:195)
at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)
at org.jboss.ejb.StatefulSessionContainer.internalInvoke(StatefulSessionContainer.java:416)
at org.jboss.ejb.Container.invoke(Container.java:700)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.jboss.mx.capability.ReflectedMBeanDispatcher.invoke(ReflectedMBeanDispatcher.java:284)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:546)
at org.jboss.invocation.jrmp.server.JRMPInvoker.invoke(JRMPInvoker.java:367)
at sun.reflect.GeneratedMethodAccessor43.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:261)
at sun.rmi.transport.Transport$1.run(Transport.java:148)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:144)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
at java.lang.Thread.run(Thread.java:534)
Caused by: javax.ejb.EJBException: null; CausedByException is:
null
at org.jboss.ejb.plugins.BMPPersistenceManager.loadEntity(BMPPersistenceManager.java:433)
at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.loadEntity(CachedConnectionInterceptor.java:352)
at org.jboss.ejb.plugins.EntitySynchronizationInterceptor.invoke(EntitySynchronizationInterceptor.java:239)
at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:185)
at org.jboss.ejb.plugins.EntityReentranceInterceptor.invoke(EntityReentranceInterceptor.java:114)
at org.jboss.ejb.plugins.EntityInstanceInterceptor.invoke(EntityInstanceInterceptor.java:163)
at org.jboss.ejb.plugins.EntityLockInterceptor.invoke(EntityLockInterceptor.java:89)
at org.jboss.ejb.plugins.EntityCreationInterceptor.invoke(EntityCreationInterceptor.java:54)
at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:84)
at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:267)
at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:128)
at org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:118)
at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:191)
at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)
at org.jboss.ejb.EntityContainer.internalInvoke(EntityContainer.java:489)
at org.jboss.ejb.Container.invoke(Container.java:700)
at org.jboss.ejb.plugins.local.BaseLocalProxyFactory.invoke(BaseLocalProxyFactory.java:375)
at org.jboss.ejb.plugins.local.EntityProxy.invoke(EntityProxy.java:38)
at $Proxy469.getData(Unknown Source)
at entities.PersonModel.local2Model(PersonModel.java:94)
at sessions.PersonReader.findByName(PersonReader.java:97)
at sessions.PersonFacadeBean.findByName(PersonFacadeBean.java:71)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.jboss.ejb.StatefulSessionContainer$ContainerInterceptor.invoke(StatefulSessionContainer.java:948)
at org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:118)
at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:185)
at org.jboss.ejb.plugins.StatefulSessionInstanceInterceptor.invoke(StatefulSessionInstanceInterceptor.java:269)
at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:84)
at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:267)
at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:128)
at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:191)
at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)
at org.jboss.ejb.StatefulSessionContainer.internalInvoke(StatefulSessionContainer.java:416)
at org.jboss.ejb.Container.invoke(Container.java:700)
at org.jboss.ejb.plugins.local.BaseLocalProxyFactory.invoke(BaseLocalProxyFactory.java:375)
at org.jboss.ejb.plugins.local.StatefulSessionProxy.invoke(StatefulSessionProxy.java:41)
at $Proxy481.findByName(Unknown Source)
at businessDelegates.PersonDelegate.findByName(PersonDelegate.java:87)
at test.cilent.ClientPersonBean.findByName(ClientPersonBean.java:120)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.jboss.ejb.StatefulSessionContainer$ContainerInterceptor.invoke(StatefulSessionContainer.java:948)
at org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:118)
at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:185)
at org.jboss.ejb.plugins.StatefulSessionInstanceInterceptor.invoke(StatefulSessionInstanceInterceptor.java:269)
at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:84)
at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:267)
at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:128)
at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:191)
... 20 more

[jual]

i just forgot to wrote
that i don't understand what happens ??

Can somebody help me ??

regards jual

[ironbird]

Your bean seems to be a BMP one, and I suspect a transaction issue in your NPE, like your beans are not yet loaded at the end of the finder.

[jual]

Hello ironbird

it is a BMP that uses a DAO-Class to access the DB.
If i have understand it, I don't thing that it's a transaction issue because i use this code

 try
 {
 ...
 }
 catch(FinderException fe)
 {
 context.setRollbackOnly();
 throw new EJBException("Could not find specified Destination. " +
 "Exception is " + fe.getMessage());
 }
 catch(NamingException ne)
 {
 context.setRollbackOnly();
 throw new EJBException(
 "Could not lookup the Destination ejb. Exception is " + ne.getMessage());
 }

Thank You for helping me

regards

Jual

[ironbird]

OK for the naming and finder exceptions.
As your bean is a BMP, what are you doing in the finder ?
How is filled the collection. This is the start point of the problem I think, or just in the first getID method ?

[jual]

Hello ironbird

I found the (my) mistake.
You were just right as you said "the beans are not yet loaded at the end of the finder. ".
Every entity bean has a PK-Class, and in this case i returned just the wrong object type in the DAO-Class.
Than it is clear that it is just impossible to load the bean with the wrong type of the PK-Class.
My imbacility

I just thank You again for your help

regards
jual