I am sorry if this is duplicate or can be done somehow but I could not find it.

An issue is the simple one, FXML can't get translation from ResourceBundle for example in this list:

</ChoiceBox>
<items>
<FXCollections fx:factory="observableArrayList">
    <String fx:value="%str1" />
    <String fx:value="%str2" />
    <String fx:value="%str3" />
</FXCollections>
</items>
</ChoiceBox>