The busy Java developer’s Guide to Scala
Ted Newman is definitely a charismatic presenter. With great passion he reviewed basic functionality of Scala DSL. Well Scala is a functional language and after the session I really want to learn it.
Performance Tuning a web shop with open source tools
Dr. Jeroen Borgers showed how performance improvement process can be done using Open Source tools. He was using JMeter (while I usually use LoadRunner) for load generation. Jprobe for profiling (I prefer YourKit BTW). JAMon for continuous monitoring (I used SiteScope commercial tool). For reporting purposes they wrote their own tool and placed on SourceForge (JaRep).