Not able to add 1:m bidirectional relationship

[Marianne Hagaseth]

Hi,
I am trying to add a 1:m bidirectional relationship, but it fails.
I wonder if  could be a mismatch between the versions used for some of the 
stuff needed.
My set up looks like:


*        isis-core-webserver 1.7.0

*        datanucleus-api-jdo-3.2.7

*        Eclipse Java EE IDE 4.4.2

*        mysql-connector-java-5.1.34

*        mysql server 5.6.23

*        Jdk 1.7.0_75


It fails here at backingStore.add(...):

                try

                {

                    backingStore.add(ownerOP,element, (useCache ? 
delegate.size() : -1));

                }

                catch (NucleusDataStoreException dse)

                {

                    NucleusLogger.PERSISTENCE.warn(LOCALISER.msg("023013", 
"add", ownerMmd.getName(), dse));

                    backingSuccess = false;

                }
With Error message:

12:20:54,055  [Datastore            1844639495@qtp-721005297-3 ERROR]  
org.datanucleus.store.rdbms.exceptions.MappedDatastoreException: INSERT INTO 
regulation_clauses (id_oid,id_eid) VALUES (?,?)

12:20:54,055  [Datastore            1844639495@qtp-721005297-3 ERROR]  
org.datanucleus.store.rdbms.exceptions.MappedDatastoreException: INSERT INTO 
regulation_clauses (id_oid,id_eid) VALUES (?,?)

12:20:54,055  [Datastore            1844639495@qtp-721005297-3 ERROR]  Add 
request failed : INSERT INTO regulation_clauses (id_oid,id_eid) VALUES (?,?)

12:20:54,055  [Datastore            1844639495@qtp-721005297-3 ERROR]  Add 
request failed : INSERT INTO regulation_clauses (id_oid,id_eid) VALUES (?,?)

12:20:54,056  [Persistence          1844639495@qtp-721005297-3 WARN ]  
Execution of method "add" on field "clauses" caused an error : Add request 
failed : INSERT INTO regulation_clauses (id_oid,id_eid) VALUES (?,?)

Add request failed : INSERT INTO regulation_clauses (id_oid,id_eid) VALUES (?,?)

org.datanucleus.exceptions.NucleusDataStoreException: Add request failed : 
INSERT INTO regulation_clauses (id_oid,id_eid) VALUES (?,?)

        at 
org.datanucleus.store.rdbms.scostore.JoinSetStore.add(JoinSetStore.java:349)

        at org.datanucleus.store.types.backed.SortedSet.add(SortedSet.java:716)

        at dom.regulation.Regulation.addClause(Regulation.java:795)

        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)


etc.etc...

Best regards,
Marianne Hagaseth