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SimJava is a discrete event, process oriented simulation package. It is an API that augments Java with building blocks for defining and running simulations. The original SimJava was based on HASE++, a C++ simulation library. HASE++ was in turn based on SIM++. The approach to simulating systems adopted by SimJava is similar to other process based simulation packages. Each system is considered to be a set of interacting processes or entities as they are referred to in SimJava. These entities communicate with each other by passing events. The simulation time progresses on the basis of these events. As of version 2.0, SimJava has been augmented with considerable statistical and reporting support. The modeller has the ability to add detailed statistical measurements to the simulation's entities and perform output analysis to test the quality of the collected data. Furthermore much effort has gone into the automation of all possible tasks allowing the modeller to focus on the pure modelling aspects of the simulation. Automated tasks range from seeding the random number generators used in the simulation, to producing detailed and interactive graphs.