I received an online technical test with 20 questions to be answered in 30 minutes. Getting 70% covered makes you suitable for the other stages of the interviewing process.
The questions are about different keywords(volatile, transient), abstract classes, singletons,clone, throw/throws and simple Swing details.
Even if I got 80% with their test I didn't get to the other stages. The only reason I can think of is that mainly I worked in web development, but the fact that I didn't have very relevant experience with Swing was mentioned before the test.