HPServer is a free, open-source light-weighted framework for concurrent networking software.
Some traits of HPServer:
object-oriented
cross-platform (support windows & linux)
event-driven
support I/O events, timer, and signals.
support multi-thread.
ShutdownMe is a simple java utility that helps you to shutdown, restart, hibernate, and log off your computer using a timer which you can specify.
This version support only windows.
github.com/MohamedWael/ShutdownMe/
I hope you to like it, enjoy.