Hello,
following exception occurs when using objectdb:
com.objectdb.o.UserException: Failed to commit transaction: Unexpected internal exception
at com.objectdb.o.MSG.d(MSG.java:75)
at com.objectdb.jpa.EMImpl.commit(EMImpl.java:304)
....
Caused by: com.objectdb.o.InternalException: Unexpected internal exception
at com.objectdb.o.JPE.h(JPE.java:168)
at com.objectdb.o.ERR.f(ERR.java:66)
at com.objectdb.o.IVP.l(IVP.java:148)
at com.objectdb.o.IVP.k(IVP.java:130)
at com.objectdb.o.ISP.size(ISP.java:163)
at com.objectdb.o.CLT.visitRefs(CLT.java:156)
at com.objectdb.o.TVS.j(TVS.java:169)
at com.objectdb.o.TVS.cascade(TVS.java:156)
at com.objectdb.o.STA.Q(STA.java:476)
at com.objectdb.o.STM.E(STM.java:407)
at com.objectdb.o.OBM.bO(OBM.java:910)
at com.objectdb.jdo.PMImpl.bO(PMImpl.java:2267)
at com.objectdb.o.OBM.bN(OBM.java:826)
at com.objectdb.o.OBM.bL(OBM.java:740)
at com.objectdb.jpa.EMImpl.commit(EMImpl.java:299)
... 45 more
Caused by: java.lang.NullPointerException
at com.objectdb.o.ISP.size(ISP.java:164)
at com.objectdb.o.CLT.visitRefs(CLT.java:156)
at com.objectdb.o.TVS.j(TVS.java:169)
at com.objectdb.o.TVS.cascade(TVS.java:156)
at com.objectdb.o.STA.Q(STA.java:476)
at com.objectdb.o.STM.E(STM.java:407)
at com.objectdb.o.OBM.bO(OBM.java:910)
at com.objectdb.jdo.PMImpl.bO(PMImpl.java:2267)
at com.objectdb.o.OBM.bN(OBM.java:826)
at com.objectdb.o.OBM.bM(OBM.java:776)
at com.objectdb.o.QRR.f(QRR.java:139)
at com.objectdb.o.QRR.a(QRR.java:618)
at com.objectdb.o.InvMemberQuery.e(InvMemberQuery.java:139)
at com.objectdb.o.UMR.v(UMR.java:508)
at com.objectdb.o.ENT.loadInverse(ENT.java:1472)
at com.objectdb.o.IVP.l(IVP.java:142)
... 57 more
Have you an idea what is the cause of this problem?
Following is the example code.
Thanks
entity classes:
public class PatternData extends FormalismData {
...
}
public class FormalismData {
...
private Set<ContractData> usedAsAssumptions;
public Set<ContractData> getUsedAsAssumptions() {
if (usedAsAssumptions == null) {
usedAsAssumptions = new HashSet<ContractData>();
}
return usedAsAssumptions;
}
public void setUsedAsAssumptions(Set<ContractData> usedAsAssumptions) {
this.usedAsAssumptions = usedAsAssumptions;
}
private Set<ContractData> usedAsCommitments;
public Set<ContractData> getUsedAsCommitments() {
if (usedAsCommitments == null) {
usedAsCommitments = new HashSet<ContractData>();
}
return usedAsCommitments;
}
public void setUsedAsCommitments(Set<ContractData> usedAsCommitments) {
this.usedAsCommitments = usedAsCommitments;
}
}
public class ContractData {
...
private List<FormalismData> assumptions = new ArrayList<FormalismData>();
public List<FormalismData> getAssumptions() {
return assumptions;
}
public void setAssumptions(List<FormalismData> assumptions) {
this.assumptions = assumptions;
}
private FormalismData commitment;
public FormalismData getCommitment() {
return commitment;
}
public void setCommitment(FormalismData commitment) {
this.commitment = commitment;
}
}
orm.xml:
<entity class="test.PatternData">
<attributes>
...
</attributes>
</entity>
<entity class="test.ContractData">
<attributes>
<many-to-one name="commitment" target-entity="test.FormalismData">
<cascade>
<cascade-all />
</cascade>
</many-to-one>
<many-to-many name="assumptions" target-entity="test.FormalismData">
<cascade>
<cascade-all />
</cascade>
</many-to-many>
</attributes>
</entity>
<entity class="test.FormalismData">
<attributes>
<one-to-many name="usedAsCommitments" mapped-by="commitment" target-entity="test.ContractData">
<cascade>
<cascade-all />
</cascade>
</one-to-many>
<many-to-many name="usedAsAssumptions" target-entity="test.ContractData" mapped-by="assumptions">
<cascade>
<cascade-all />
</cascade>
</many-to-many>
</attributes>
</entity>
code:
...
PatternData pattern = new PatternData();
entitymanager.persist(pattern);
transation.commit(); // success
...
transation.begin();
ContractData contract = new ContractData();
entitymanager.persist(contract);
contract.setCommitment(pattern);
transation.commit(); // cause the NullpointerException
