@Entity
@Table(name = "MY_ENTITIES")
public class MyEntity {
    @Id
    @GeneratedValue
    @Column(name = "ENT_ID")
    private Integer          myId;

    @ElementCollection
    @CollectionTable(name = "MY_EMBEDDED", joinColumns = @JoinColumn(name = "BED_ENT_ID"))
    private List<MyEmbedded> myEmbeddedList;

    @Column(name = "ENT_DATE_VALUE")
    @Temporal(TemporalType.TIMESTAMP)
    private java.util.Date   myDateValue;
}

CREATE TABLE MY_ENTITIES (
    ENT_ID INTEGER NOT NULL,
    ENT_DATE_VALUE DATETIME,
    PRIMARY KEY (ENT_ID)
);

@Embeddable
public class MyEmbedded {
    @Column(name = "EMB_NAME")
    private String myName;

    @Column(name = "EMB_DATE_VALUE")
    @Temporal(TemporalType.TIMESTAMP)
    private java.util.Date   myDateValue;
}

CREATE TABLE MY_EMBEDDED (
    EMB_DATE_VALUE VARCHAR(255),
    EMB_NAME VARCHAR(255),
    BED_ENT_ID INTEGER
);