Code that was working in 3.2.2, now throws a null pointer in 3.2.3 after bug HHH-252 was fixed.

In the stack trace belowe, a FixedLoanDepositInstrumentEty instance is created and merged. The embedded contractRef is null.
When the new code in TypeFactory.replaceAssociations() gets executed, there is an attempt to get field values from the null component, which leads eventually to the exception.

Hibernate version:3.2.3
Hibernate annotations version:3.3.0
Hibernate entity manager version:3.3.1

Mapping documents:

@Entity
@Table(name = "Tbl_Fixed_Loan_Deposit")
@Cache(usage = CacheConcurrencyStrategy.TRANSACTIONAL)
public class FixedLoanDepositInstrumentEty extends LoanDepositInstrumentEty {

private static final long serialVersionUID = 8899569824112964052L;

@Temporal(TemporalType.DATE)
@Column(name = "Dt_Maturity")
private Date maturityDate;

@ManyToOne(cascade = { PERSIST, MERGE, REFRESH })
@JoinColumn(name = "Id_Duration_Def")
private DurationDefinitionEty durationDef;

@MappedSuperclass
@Cache(usage = CacheConcurrencyStrategy.TRANSACTIONAL)
public abstract class LoanDepositInstrumentEty extends InstrumentEty {

private static final long serialVersionUID = 3924898550785802471L;

@Column(name = "Cd_Loan_Deposit_Style", nullable = false)
private String style;

@Column(name = "Cd_Loan_Deposit_Type", nullable = false)
private String type;

@Temporal(TemporalType.DATE)
@Column(name = "Dt_Start")
private Date startDate;

@Column(name = "Rt_Interest")
private BigDecimal interestRate;

@Embedded
private ContractRefEty contractRef;

@Embeddable
@Cache(usage = CacheConcurrencyStrategy.TRANSACTIONAL)
public class ContractRefEty implements Serializable {

private static final long serialVersionUID = -8645025351223018512L;

@Column(name = "Cd_Type_Contract_Ref")
private String type;

@Column(name = "No_Contract_Ref")
private String value;

Code between sessionFactory.openSession() and session.close():

FixedLoanDepositInstrumentEty fixedLoanDepositInst = new FixedLoanDepositInstrumentEty(FIDUCIARY, DEPOSIT,
cashInst,
startCal.getTime(),
maturityCal.getTime(),
duration);
fixedLoanDepositInst = (FixedLoanDepositInstrumentEty) em.merge(fixedLoanDepositInst);

Full stack trace of any exception that occurs:

javax.persistence.PersistenceException: org.hibernate.PropertyAccessException: could not get a field value by reflection getter of com.lodh.position.instrument.entity.ContractRefEty.type
at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:630)
at org.hibernate.ejb.AbstractEntityManagerImpl.merge(AbstractEntityManagerImpl.java:237)
...
Caused by: org.hibernate.PropertyAccessException: could not get a field value by reflection getter of com.lodh.position.instrument.entity.ContractRefEty.type
at org.hibernate.property.DirectPropertyAccessor$DirectGetter.get(DirectPropertyAccessor.java:35)
at org.hibernate.tuple.component.AbstractComponentTuplizer.getPropertyValue(AbstractComponentTuplizer.java:64)
at org.hibernate.tuple.component.AbstractComponentTuplizer.getPropertyValues(AbstractComponentTuplizer.java:70)
at org.hibernate.tuple.component.PojoComponentTuplizer.getPropertyValues(PojoComponentTuplizer.java:83)
at org.hibernate.type.ComponentType.getPropertyValues(ComponentType.java:353)
at org.hibernate.type.ComponentType.getPropertyValues(ComponentType.java:348)
at org.hibernate.type.TypeFactory.replaceAssociations(TypeFactory.java:535)
at org.hibernate.event.def.DefaultMergeEventListener.copyValues(DefaultMergeEventListener.java:366)
at org.hibernate.event.def.DefaultMergeEventListener.entityIsTransient(DefaultMergeEventListener.java:195)
at org.hibernate.event.def.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:123)
at org.hibernate.event.def.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:53)
at org.hibernate.impl.SessionImpl.fireMerge(SessionImpl.java:677)
at org.hibernate.impl.SessionImpl.merge(SessionImpl.java:661)
at org.hibernate.impl.SessionImpl.merge(SessionImpl.java:665)
at org.hibernate.ejb.AbstractEntityManagerImpl.merge(AbstractEntityManagerImpl.java:228)
... 29 more
Caused by: java.lang.NullPointerException
at sun.reflect.UnsafeFieldAccessorImpl.ensureObj(UnsafeFieldAccessorImpl.java:36)
at sun.reflect.UnsafeObjectFieldAccessorImpl.get(UnsafeObjectFieldAccessorImpl.java:18)
at java.lang.reflect.Field.get(Field.java:357)
at org.hibernate.property.DirectPropertyAccessor$DirectGetter.get(DirectPropertyAccessor.java:32)
... 43 more

Name and version of the database you are using: Hsqldb 1.8.0

The generated SQL (show_sql=true):

Debug level Hibernate log excerpt:


Problems with Session and transaction handling?

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