I found a couple posts on the openjpa lists that talk about this
problem.
The first says that making openjpa classes available to the client
will cause the client to be able to deserialize the dynamic proxy.
The second suggests that if the entity you are sending to the client
is detached then a plain Date not a proxy should be sent.
Raising this again on the openjpa lists might produce more info.
thanks
david jencks
On May 19, 2009, at 9:58 PM, Russell Collins wrote:
Hello, I am new to OpenJPA and the entire persistence objects so
bear with me a little. First of all, I am using Apache Geronimo
which has OpenJPA version1.2.1 and I am moving from Hibernate (which
is a pain to try to work in Geronimo). Everything works fine except
for Dates and Times. I have an Embedded class that starts off like
this:
@Embeddable
public class EntityChange implements Serializable {
private static final long serialVersionUID = 1L;
@Column(name = "changedate" )
@Temporal(DATE)
private Date changeDate;
@Column(name = "changetime")
@Temporal(TIME)
private Time changeTime;
@Column(name = "changeuser")
private String changeUser;
When I try to grab an object with these embedded values I get the
error:
java.lang.AssertionError: javax.ejb.EJBException: Unknown Container
Exception: java.rmi.RemoteException: Cannot read the response from
the server. The class for an object being returned is not located
in this system:; nested exception is:
java.lang.ClassNotFoundException:
org.apache.openjpa.util.java$sql$Date$proxy
I have tried multiple ways with adding and removing @Temporal etc.
Oh one more thing, this is a MySQL database that I am trying to
access. Please give me any help you can. Thanks.
Russell Collins
