Hi Jon.
Most noteworthy is InteliJ IDEA. With Version 13 and Java 8, the UI was slow and garbaged (pixelated). That's where I got the tip with a 1.6 JRE from: running in Java 6, compiling against a Java 8 SDK. But they solved the problem with 13.1.
Some other tools have the same problems, like different Log Viewers or even JMeter (that runs native Swing without a special look & feel!). I haven't checked the dev boards for a while, but I remember posts that this is also a problem with Windows machines.