For which surprises do I have to prepare myself if I switch from Sun JDK to OpenJDK?

Question

If I\'d switch from Sun JDK to OpenJDK which surprises do I have to prepare myself for?

What does frequently go wrong and how difficult can this be?

Of course, e

Answer 1

As I know fonts will look garbled, Sun had to remove original ones from OpenJDK since they are not 'open source' and JVM will use some default which are not so nice...