I have a Maven JavaFX project in Eclipse and Firebird Database with UTF-8 table encoding (data in tables in Russian). When I try to start it from Eclipse using the command jfx:run, it was successful, and in TableView I see that all the data is correct.

But, when I try to create my own installer with the command jfx:nativeand install the result package, all the data in TableViews is the wrong encoding (search on the Internet prompt that requires converting data from UTF-8 to WINDOWS-1251).

Code to populate data from the database:
private class GetClientListTask extends Task<ObservableList<Client>> {
@Override
protected ObservableList<Client> call() throws Exception {
try (Connection connection = DriverManager.getConnection(App.DB_CONNECTION_STRING, App.DB_USERNAME, App.DB_PASSWORD)) {
com.zvpblog.KomstarService.model.jooq.tables.Client t = com.zvpblog.KomstarService.model.jooq.tables.Client.CLIENT;
DSL.using(connection).
selectFrom(t).
orderBy(t.CLIENTID.desc()).
fetch().
map(rs -> new Client(rs.getClientid(), DateTimeUtils.convertToLocalDate(rs.getRegdate()), rs.getLname(), rs.getFname(), rs.getMname(), rs.getGender(), DateTimeUtils.convertToLocalDate(rs.getBirthdate()), rs.getAddress(), rs.getPhone())).
forEach(c -> clients.add(c));
clientTableViewData = FXCollections.observableArrayList(clients);
return clientTableViewData;
} catch (SQLException e) {
LOGGER.error(e);
return null;
}
}
}
Why is the encoding correct in startup mode but incorrect in the native package?