To reproduce:

- add items "a","b","c","d"
- select item "b"
- remove items "b","c" using removeAll method

expected:

- getSelectedItem() returns "a", getSelectedIndex() returns 0
- getSelectedItems().get(0) returns "a", getSelectedIndices().get(0) returns 0

actual:

- getSelectedItem() returns "b", getSelectedIndex() returns 1
- getSelectedItems().get(0) returns null, getSelectedIndices().get(0) returns -1

Test case to reproduce:

    @Test
    public void testListViewSelectionChanges() throws Exception {
        new JFXPanel();
        ListView<String> stringListView = new ListView<>();
        stringListView.getItems().addAll("a","b","c","d");
        stringListView.getSelectionModel().select("b");

        stringListView.getItems().removeAll("b","c");

        Assert.assertEquals(0, stringListView.getSelectionModel().getSelectedIndex());
        Assert.assertEquals(Integer.valueOf(0), stringListView.getSelectionModel().getSelectedIndices().get(0));
        Assert.assertEquals("a", stringListView.getSelectionModel().getSelectedItem());
        Assert.assertEquals("a", stringListView.getSelectionModel().getSelectedItems().get(0));
    }