Javafx table view multiple selection sometimes skips one of the items

Question

I have created a table view in javafx for my custom object. I have enabled multiple selection in the code by doing: table.getSelectionModel().setSelectionMode(SelectionMode.MULTIPLE);

Randomly I observe that when I select all the items by pressing Ctrl+A, one of the items is returned as null among all the selected items. Not sure why this happens. I use below line to fetch all items:

ObservableList<MyObj> selectedItems = table.getSelectionModel().getSelectedItems();

Any suggestions?

Complect

Can you provide a minimal, complete, verifiable example exhibiting this behavior? – Illlooking

maybe the index -1 ? – Hypsography

i see the same issue, the index returned for the null object is -1 . #36894479. Were you able to fix this ? – Agnosia

Answer 1

Apparently it's a bug, already fixed for version 9 (and also 8u112, if I understand correctly): https://bugs.openjdk.java.net/browse/JDK-8144501

A workaround for now is to use getSelectedIndices(), then get the items corresponding to these instances from table.getItems()

Illlooking