A simply silly plugin that prevents entity spawning on your server.
Many people will think: what a useless plugin!
The truth is that it is not. It is intended for non-conventional servers that want to eliminate all entities, for example: building servers, pvp ones, ...
Even if you set all the minecraft server options of mobs spawn in false, mobs can be spawned by eggs, that's why this plugin comes up. The code is extremely short and simple, so the plugin is extremely lightweight.
You only need to drag and drop into the plugins folder to use, anything else.