gistfile1.txt

public function validate($value, Constraint $constraint): void
{
    try {
      if ($someService->checkValue($value)) {
          $this->context
              ->buildViolation($constraint->message)
              ->addViolation();
        }
    } catch (YourSpecialException $exception) {
        // Silently ignore this one
    } catch (\Exception $exception) {
        $this->context
              ->buildViolation($exception->getMessage())
              ->addViolation();
    }
}