DataController.java

@RestController
@RequestMapping("/data")
public class DataController {

    @GetMapping(value = "/")
    public ResponseEntity<tPage<T>> paginate(Pageable pageable) {
        List<T> listFromSource = source.getList();
        Page<T> page = PaginationUtil.paginateList(pageable, listFromSource);
        return ResponseEntity.ok(page);            
    }
}