@NotNull
 @Override
 protected List<String> getAllValues() {
   return ContainerUtil.map(
       myLogData.getAllUsers(),
       user -> {
         String shortPresentation = VcsUserUtil.getShortPresentation(user);
         Couple<String> firstAndLastName = VcsUserUtil.getFirstAndLastName(shortPresentation);
         if (firstAndLastName == null) return shortPresentation;
         return VcsUserUtil.capitalizeName(firstAndLastName.first)
             + " "
             + VcsUserUtil.capitalizeName(firstAndLastName.second);
       });
 }
 @NotNull
 @Override
 protected VcsLogUserFilter createFilter(@NotNull Collection<String> values) {
   return new VcsLogUserFilterImpl(values, myLogData.getCurrentUser(), myLogData.getAllUsers());
 }