JPA Master-Detail Rollback Problem

Hello everbody,

Normally, inserting master-detail object to database follow these steps.
1- insert master to database cache.
When error occurred, do rollback.
2- insert detail to database cache.
When error occurred, do rollback.
3-if no error, commit transaction.

But in jpa transaction rollback is not working same, I think.
I have two objects to persist. Like these:

public class ConditionKey implements Serializable {
      private static final long serialVersionUID = 1L;

      @Id
      @GeneratedValue(strategy = GenerationType.SEQUENCE)
      @Column(name = "KEY_ID")
      private Integer keyId;

      @OneToMany(mappedBy = "conditionKey", fetch = FetchType.EAGER, cascade =             CascadeType.ALL, orphanRemoval = true)
      private List<KeyOption> keyOptions;


@Entity
@Table(name = "KEY_OPTION")
public class KeyOption implements Serializable {
      private static final long serialVersionUID = 1L;

      @Id
      @GeneratedValue(strategy = GenerationType.SEQUENCE)
      @Column(name = "KEY_OPTION_ID")
      private Integer keyOptionId;

      @Column(name = "OPTION_VALUE")
      private String optionValue;

      @ManyToOne(fetch = FetchType.EAGER)
      @JoinColumn(name = "KEY_ID")
      private ConditionKey conditionKey;

KeyOption optionValue is unique in database.
When I call jpa persist I have trouble with these object. JPA insert ConditionKey to database cache. KeyOption optionValue is unique. When I insert already inserted optionValue
JPA throw en UniqunessException but ConditionKey is already changed. But database not.
How can I solve these rollback problem in JPA? (EclipseLink)

      public void insertConditionKey(ConditionKey conditionKey) throws Exception {
            EntityManager em = entityManagerFactory.createEntityManager();
            try {
                  em.getTransaction().begin();
                  em.persist(conditionKey);
                  em.flush();
                  em.getTransaction().commit();
            } catch (Exception e) {
                  if (em.getTransaction().isActive()) {
                        em.getTransaction().rollback();
                  }
                  throw e;
            } finally {
                  em.close();
            }
      }
akoyuncuAsked:
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chaitu chaituCommented:
if exception is going into this block;put some debug there;

catch (Exception e) {
                  if (em.getTransaction().isActive()) {
log.debug("coming to exception");

                        em.getTransaction().rollback();
                  }
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