Mustang (1.6) Vs Tiger (1.5) Java Virtual Machine Comparison
The first benchmark of Mustang (JDK1.6) versus Tiger (JDK1.5) shows that Java users are up for an agreeable surprise. According to this JavaLobby discussion the virtual machine raw speed has improved significantly (40-100%). Although, the core library implementation (e.g. collections) could also benefit from some rework/optimizations.