I had a question regarding the packaging of the submission jar; specifically, the instructions state:
Full source and object code, including new classes, modified versions of supplied classes, and copies of supplied classes that were not modified. These should be in an appropriate directory structure along with the classfiles. You may use JAR files to contain groups of elements of your submission as you deem appropriate, for example, to support the execution of your programs.
I was planning to include the source (in directories within the submission jar) but package the classes into internal server and client jars. This would seem to be acceptable (grouping elements in jars), but it also indicates the classfiles should be in a directory structure along with the source.
I'd be interested to hear package layouts from those who have taken the exam.