Detect OS Sleep and Wake Up events in Java

Question

Is there a way for a Java program to detect when the operating system is about to go to sleep, or failing that, at least detecting a wake up?

The actual problem is t

Answer 1

I know it's not exactly what you're looking for, but maybe the right answer is to try to write the code with the assumption that your sockets won't necessarily stay up. There are lots of reasons why the connection could crash, for example because the DB is taken down for maintenance, or because someone tripped over your Ethernet cable. I think you'd have similar problems with errors if someone pulled out the network cable while your app was running, and these are not unheard-of conditions, so maybe it's a better approach to try and handle those conditions gracefully.