Test name is misleading. It checks for null index instead of negative:
@Test(expected = NullPointerException.class)
public void testBooleanValueAt_Variable_NegativeIndex() {
final ListProperty<Boolean> localProperty = new SimpleListProperty<Boolean>();
Bindings.booleanValueAt(localProperty, null);
}
@Test(expected = NullPointerException.class)
public void testBooleanValueAt_Variable_NegativeIndex() {
final ListProperty<Boolean> localProperty = new SimpleListProperty<Boolean>();
Bindings.booleanValueAt(localProperty, null);
}