The brute-force work there is in IntelliJ, not in Swing – they've reimplemented the most broken Swing components, like the menu bar. Other Swing applications ar

The brute-force work there is in IntelliJ, not in Swing – they've reimplemented the most broken Swing components, like the menu bar. Other Swing applications are still slow, ugly and buggy. (And despite all their work, IntelliJ still suffers from Swing bugs.)