GWTApp provides several features like: HTML templating and messaging at runtime without application recompiling, MetaField to auto bind and simulate annotation of RPC data fields, Strong typing in MVC, Modular structure in Maven.
MbeanStat provides a very easy way to instrument Runtime MBeans in WebLogic servers and capture system runtime data like CPU utilization. It also provides scripts to generate graphs for easy analysis. The tool is easy to setup and use.