OSPage is a project mainly written in Java, it's free.
Execute the simulation from this directory with the following command line.
java -cp bin Simulation
If you want to alter the logging behaviour (e. g. to set the logging level from "INFO" to "FINE") use the following command line.
java -cp bin -Djava.util.logging.config.file=logging.properties Simulation
Note: Log level "FINE" is good for debugging, but produces a lot of output and is therefore quite slow in execution.