You need to tell jboss you are using db generated keys.
This is an FAQ.
Regards,
Adrian
On Thu, 2003-09-11 at 13:33, James Black wrote:
> I am learning to use jboss, and write ejbs. I am getting an error I
> don't understand how to solve.
>
> My unit tests passed before I added in the Data Access Object, I was
> using a different java bean for accessing the database.
> I have now written a DAO, and added it to the system. I am using Lomboz
> to help me generate and integrate the necessary classes.
>
> I have looked to ensure that my ejbFindByPrimaryKey doesn't return a
> null (I return the PK that was passed in), and findByPrimaryKey in the
> DAO doesn't return null.
>
> But, it appears that they never get to any of my code before the
> exception is thrown. I had walked through the execution using the
> debugger in Eclipse, and neither function above is ever called.
>
> Any suggestions on what I can do?
>
> Is memory an issue? Currently my PC has 512M RAM (my new computer
> should have 2G), so it does end up doing swapping, but everything is
> running.
>
> Thank you for any help.
>
> Error I get:
>
>
java.rmi.ServerException: RemoteException occurred in server thread;
> nested exception is:
java.rmi.ServerException: RuntimeException;
> nested exception is:
java.lang.IllegalArgumentException: Attempt to
> get lock ref with a null object
> at
sun.rmi.server.UnicastServerRef.dispatch (
UnicastServerRef.java:292)
> 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)
> at
>
sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer (
StreamRemoteCall.java:247)
>
> at
>
sun.rmi.transport.StreamRemoteCall.executeCall (
StreamRemoteCall.java:223)
> at
sun.rmi.server.UnicastRef.invoke (
UnicastRef.java:133)
> at org.jboss.invocation.jrmp.server.JRMPInvoker_Stub.invoke(Unknown
> Source)
> at
>
org.jboss.invocation.jrmp.interfaces.JRMPInvokerProxy.invoke (
JRMPInvokerProxy.java:135)
>
> at
>
org.jboss.invocation.InvokerInterceptor.invoke (
InvokerInterceptor.java:87)
> at
>
org.jboss.proxy.TransactionInterceptor.invoke (
TransactionInterceptor.java:46)
>
> at
>
org.jboss.proxy.SecurityInterceptor.invoke (
SecurityInterceptor.java:45)
> at
>
org.jboss.proxy.ejb.EntityInterceptor.invoke (
EntityInterceptor.java:97)
> at
org.jboss.proxy.ClientContainer.invoke (
ClientContainer.java:85)
> at $Proxy1.getNamsPerson(Unknown Source)
> at
> edu.usf.acomp.epic.ee.server.persons.NamsPersonServerBeanTest.testGetNamsPerson(NamsPersonServerBeanTest.java:66)
>
> at
> edu.usf.acomp.epic.ee.server.persons.NamsPersonServerBeanTest.testBean(NamsPersonServerBeanTest.java:51)
>
> at
> edu.usf.acomp.epic.ee.server.persons.NamsPersonServerBeanTest.main(NamsPersonServerBeanTest.java:92)
>
> Caused by:
java.lang.IllegalArgumentException: Attempt to get lock ref
> with a null object
> at
org.jboss.ejb.BeanLockManager.getLock (
BeanLockManager.java:80)
> at
>
org.jboss.ejb.plugins.EntityLockInterceptor.invoke (
EntityLockInterceptor.java:81)
>
> at
>
org.jboss.ejb.plugins.EntityCreationInterceptor.invoke (
EntityCreationInterceptor.java:53)
>
> at
>
org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext (
AbstractTxInterceptor.java:84)
>
> at
>
org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions (
TxInterceptorCMT.java:243)
>
> at
>
org.jboss.ejb.plugins.TxInterceptorCMT.invoke (
TxInterceptorCMT.java:104)
> at
>
org.jboss.ejb.plugins.SecurityInterceptor.invoke (
SecurityInterceptor.java:117)
>
> at
org.jboss.ejb.plugins.LogInterceptor.invoke (
LogInterceptor.java:191)
>
>
>
>
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--
xxxxxxxxxxxxxxxxxxxxxxxx
Adrian Brock
Director of Support
Back Office
JBoss Group, LLC
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