actually complete

src/main/java/io/zipcoder/tc_spring_poll_application/controller/PollController.java

 import io.zipcoder.tc_spring_poll_application.exception.ResourceNotFoundException;
 import io.zipcoder.tc_spring_poll_application.repositories.PollRepository;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 
     private PollRepository pollRepository;
 
-
-
     @Autowired
     public PollController(PollRepository pollRepository) {
         this.pollRepository = pollRepository;
     }
 
     @RequestMapping(value="/polls", method= RequestMethod.GET)
-    public ResponseEntity<Iterable<Poll>> getAllPolls() {
-        Iterable<Poll> allPolls = pollRepository.findAll();
+    public ResponseEntity<Page<Poll>> getAllPolls(Pageable pageable) {
+        Page<Poll> allPolls = pollRepository.findAll(pageable);
         return new ResponseEntity<>(allPolls, HttpStatus.OK);
     }
 

src/main/java/io/zipcoder/tc_spring_poll_application/dto/error/RestExceptionHandler.java

 @ControllerAdvice
 public class RestExceptionHandler {
 
+    private final MessageSource messageSource;
+
     @Autowired
-    private MessageSource messageSource;
+    public RestExceptionHandler(MessageSource messageSource) {
+        this.messageSource = messageSource;
+    }
 
     @ExceptionHandler(ResourceNotFoundException.class)
     public ResponseEntity<?> handleResourceNotFoundException(ResourceNotFoundException rnfe, HttpServletRequest request) {