I can't seem to figure this out. Using the internal designer I add a ComboBox to the layout. I load the layout and then use ComboBox1.Items.Add("item") to add the first item to the dropdown list. The app compiles and runs but if I click on the ComboBox the app hangs. I've tried Combobox.AddAll, I've added lists, strings. I've initialized both the ComboBox and the Combobox.Items, all with the same results. What am I doing wrong? My paths are set to Java 1.8. Feels like I am I missing the obvious.