Latest versions are available on github :
https://github.com/vincss/mcEmptyServerStopper/releases

This plugin will stop your server after a defined time when the last player leaved.

To wait until someone reconnects :

• For 1.8+ : you can use SleepingServerStarter
  • On GitHub
  • On SpigotMc
• For older version : MCSignOnDoor to restart it. (Sentry mode).

What it does :

1. Wait for the last player to leave. Trigger at X minutes timers.
   
2. After the X minutes, check if no one is connected.
   1. No one is connected: shutdown the server.
      
   2. Someone is connected: cancel the timer.

Install the plugin by putting the .jar file in the plugins/ directory of your server

The delay before service shutdown is configurable in : plugins/EmptyServerStopper/config.yml

(Then it can restart using MCSignOnDoor.)

ChangeLog:

• TBC on GitHub
  
• 1.15.1
  • Updated for latest 1.15.1 version
• v0.3:
  • Update to be compatible with 1.9.
• v0.2:
  • New parameters :
    • ShutdownTime: shutdown after x minutes when the last player left.
      
    • ShutdownAtStart: launch the shutdown timer at start.
• v0.1:
  • Working but not configurable.

Note: To create config file: first start the server, then stop it. Edit the parameters in ".\plugins\EmptyServerStopper\config.yml".