There were standard java questions, like difference between final/finally/finalize, abstract class versus interface, thread.local, etc. Also there were 5 or 6 exercises like merge two sorted linked lists as well as open ended questions like 'given the opportunity what would you change about the language or JVM'. There were some standard db/sql questions such as differentiate between inner/left outer joins, indexes, etc as well as open ended questions such as tuning strategy/methodology for a slow application query, etc