Basically the subject says it all: We have a couple of components running on Java 5, they're talking to each other via RMI. Should we expect any problems, if we move some of them to Java6? By moving I mean compiling them with -source/target 1.6
and running on a java6 vm.
Nope, you shouldn't expect any problems with that. But anyway take a look to the Release notes for RMI in java 6
Good luck!