Both Eclipse and NetBeans had some kind of IntelliSense, but it didn't scale very well. Scanning and re-scanning project took long time. Freshly written code ei

Both Eclipse and NetBeans had some kind of IntelliSense, but it didn't scale very well. Scanning and re-scanning project took long time. Freshly written code either didn't appear in auto-completion lists or appeared after long delay. Huge projects lagged horribly — and that was just with basic auto-completion. Doing on-fly null-checks and displaying hints, like Idea does, was completely outside of reach. I don't know, if today Eclipse fares better, beacuse like many people I switched to IntelliJ never looked back.