@XXX(defaultValue="...")

CookieValue

RequestParam

@Header

@RequestHeader

@MatrixVariable

@StreamListener
    fun receive(@Input(AccountCreation.CAC) input: Flux<ConfirmAccountCreation>,
                @Output(AccountCreation.ACC) success: FluxSender,
                @Output(AccountCreation.ACF) fail: FluxSender) {
        input.map(this::getResponse)
                .groupBy{it.succes.isPresent}
                .flatMap {  }
    }

data class Response (val succes: Optional<AccountCreationConfirmed>,
                         val failed: Optional<AccountCreationFailed>)

@RestController
class TestController {
    @PostMapping
    fun testValidation(@Valid @RequestBody validRequest: ValidRequest): ResponseEntity<String> {
        // Should not be here
        return ok().body(validRequest.item)
    }
}

data class ValidRequest(
        @Email
        val item: String
)

POST <http://localhost:8080>
Content-Type: application/json

{
  "item": ""
}

data class ValidRequest(
    @field:Email
    val item: String
)

lateinit var enabled: Boolean

lateinit

var enabled = false

{
      "sourceType": "com.mycompany.core.config.CoreProperties",
      "name": "mycompany.core.notification",
      "sourceMethod": "getNotification()",
      "type": "com.mycompany.core.config.CoreProperties$Notification"
},

public class UserDto {
    @NotNull
    @NotEmpty
    private String firstName;
     
    @NotNull
    @NotEmpty
    private String lastName;
     
    @NotNull
    @NotEmpty
    private String password;
    private String matchingPassword;
     
    @NotNull
    @NotEmpty
    private String email;
     
    // standard getters and setters
}