Objects.requireNonNull throws NullPointerException, not
IllegalArgumentException. The English source was correct;
the Turkish translation had the wrong exception type.
The route calls .marshal().json() before reaching the mock endpoint,
so the body is a JSON String, not a POJO. Removed expectedBodiesReceived
with POJO and getBody(BusinessRulesPayload.class), replaced with
String body assertion using contains().
- Add missing @Slf4j and bucketName field to FileStorageService
- Fix PaginatedList → List type mismatch (Panache returns List)
- Fix executorService.submit → execute mock (supplyAsync uses execute)
- Update S3 failure test to throw from putObject instead of failed future
Applied to English + all 3 locale copies (tr, ja-JP, zh-CN).
Changed "Always use AssertJ" to "Prefer AssertJ for value checks" and
documented the intended pattern: JUnit assertThrows/assertDoesNotThrow
for exception lifecycle, AssertJ for value validation. This matches
the actual code examples in the document.