@Embeddable
	public class EmployeeId implements Serializable {
		@Column(name = "first_name", length = 32)
		String firstName;
		@Column(name = "last_name", length = 10)
		String lastName;
	}

	@Entity
	@Table(name = "EMLOYEE")
	public static class Employee {
		@EmbeddedId
		EmployeeId id;
	}

	@Embeddable
	public class DependentId implements Serializable {
		String name;
		EmployeeId empPK;
	}

	@Entity
	@Table(name = "DEPENDENT")
	public static class Dependent {
		@EmbeddedId
		DependentId id;
		@MapsId("empPK")
		@JoinColumns({
				@JoinColumn(name = "FK1", referencedColumnName = "first_name"),
				@JoinColumn(name = "FK2", referencedColumnName = "last_name")
		})
		@ManyToOne
		Employee emp;
	}

create table DEPENDENT (name varchar(255) not null, FK1 varchar(255) not null, FK2 varchar(255) not null, primary key (FK1, FK2, name));

create table EMLOYEE (first_name varchar(32) not null, last_name varchar(10) not null, primary key (first_name, last_name));

alter table DEPENDENT add constraint FKkqgwmxb5thxojceyxdcjkdxsl foreign key (FK1, FK2) references EMLOYEE;