Hey everyone! I've recently stumbled into one of my silly problems once again! So, this time I want to save this: Code (Text): public static HashMap<UUID, Integer> rentalTime = new HashMap<UUID, Integer>(); Into a config when the plugin is disabled, and when the plugin is enabled again, it puts the config info back into the hashmap. I know this seems quite simple, but I cant seem to figure it out! If people were wondering what I'm trying to do, I have a command that a player can rent, and it removes from the uuid -1 every hour, so when the server is disabled, it saves the rental time, but when the server is turned back on, it puts it back into the hashmap once again! Thanks ahead of time! Improvements/Tips are greatly appreciated! PS: I did google this problem! So dont say "Google this", or "Good that". Just as a heads up!