Many-Many Relation

Question

I'm using Sun ONE AS 7 for deploying an EJB jar containing several entitys with relations.
I can use the methods set<Relation> and I can see the new data in the database system, it looks goods even the tables using for the many-many relations.
But when I use the get<Relation> method and I try to access the Collection that returns that method I always found the next error:
WARNING: CORE3283: stderr: java.lang.IllegalStateException
WARNING: CORE3283: stderr:      at com.sun.jdo.spi.persistence.support.ejb.cmp.E
JBHashSet.assertInTransaction(EJBHashSet.java:352)
WARNING: CORE3283: stderr:      at com.sun.jdo.spi.persistence.support.ejb.cmp.E
JBHashSet.iterator(EJBHashSet.java:295)
...I've traced the SQL statement executed by the S1AS and that statement works fine, so the problem is not in the DB system.
Thanks in advance for your help.

Answer 1

Hello,
I got the same problem wit a 1:* Relation, but I can't find an error in my Transactions. All of them are marked as required and I use Container Managed Persistence.
here is my error code:
Caught an exception:
java.lang.IllegalStateException
at com.sun.jdo.spi.persistence.support.ejb.cmp.EJBHashSet.a
EJBHashSet.java:339)
at com.sun.jdo.spi.persistence.support.ejb.cmp.EJBHashSet.s
t.java:192)
at util.EmployeeDetails.toString(EmployeeDetails.java:142)
at clients.TimeRecordClient.main(TimeRecordClient.java:28)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Meth
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethod
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Delegati
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at com.sun.enterprise.util.Utility.invokeApplicationMain(Ut
5)
at com.sun.enterprise.appclient.Main.<init>(Main.java:420)
at com.sun.enterprise.appclient.Main.main(Main.java:92)
Maybe someone could help me....