this is a simple plugin to avoid the block destruction to creeper explosions, that's it.
I built this plugin because the effect of disabling the game rule "mobGriefing" can result in misbehaviour in e.g. villager farms, there were already plugins but these had too much configuration options
Download the Plugin from the Releases Tab and put it in the "plugins"-Folder of your Server Directory
I tested the plugin on 1.8.8 and on 1.19 and both worked, so all Versions between should work too.