Java and Spring Framework Online Test

Consider the following Spring bean:

public class MovieRepository {

    @Autowired
    private DataSource dataSource;

    public List<Movie> findMoviesByName(String name) {
        JdbcTemplate jdbcTemplate = new JdbcTemplate(dataSource);
        return jdbcTemplate.query("select name, year, rating from movies where name like ?",
                new Object[]{name},
                new RowMapper<Movie>() {
                    @Override
                    public Movie mapRow(ResultSet resultSet, int i) throws SQLException {
                        return new Movie(resultSet.getString("name"),
                                resultSet.getInt("year"), resultSet.getInt("rating"));
                    }
                });
    }

}

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Consider the following Spring bean:

@Component
public class TaskExecutor {

    @Value("${thread.count:10}")
    private int threadCount;
    @Value("worker.thread.name")
    private String threadNameTemplate;
    private AtomicInteger counter = new AtomicInteger();
    private ExecutorService executorService;

    @PostConstruct
    public void init() {
        ThreadFactory threadFactory = (runnable) -> new Thread(threadNameTemplate + counter.incrementAndGet());
        executorService = Executors.newFixedThreadPool(threadCount, threadFactory);
    }
}

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Implement the uniqueNames method. When passed two arrays of names, it will return an array containing the names that appear in either or both arrays. The returned array should have no duplicates.

For example, calling MergeNames.uniqueNames(new String[]{'Ava', 'Emma', 'Olivia'}, new String[]{'Olivia', 'Sophia', 'Emma'}) should return an array containing Ava, Emma, Olivia, and Sophia in any order.