readthefuckingmanual.net

I had this problem, and couldn't understand why as jdbcTemplate was a final field, and was initialised in the constructor.

Changing my MVC method from private to public stopped this error.

@Controller
@RequestMapping("/path")
public class MyController {

	private final JdbcTemplate jdbcTemplate;

	public MyController(JdbcTemplate jdbcTemplate) {
		this.jdbcTemplate = jdbcTemplate;
	}

@GetMapping
private String get() {
  getEmail(...);
}

	private Optional<String> getEmail(String username) {
		SqlRowSet row = jdbcTemplate.queryForRowSet("SELECT email FROM emails WHERE username = ?", username);
		if (row.next()) {
			return Optional.of(row.getString("email"));
		}
		return Optional.empty();
	}

to

@GetMapping
public String get() {
  getEmail(...);
}

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