create database arraytest;
create schema arraytest;
create table array_test (id serial primary key, arr varchar(64)[]);
insert into arraytest.array_test (arr) values ('{"some", "value"}');

@Entity
@Table(name = "array_test", catalog = "arraytest", schema = "arraytest")
@NamedQueries({
    /*Deleted automatically generated queries. */
})
public class ArrayTest implements Serializable {
    private static final long serialVersionUID = 1L;
    @Id
@Column(name = "id", nullable = false)
    private Integer id;
    @Column(name = "arr")
    @ElementCollection
    private List<String> arr = new ArrayList<String>();
/* Getter and Setter methods */
}