A collection of utilities and extended APIs to support the rapid and easy development of Bukkit plugins.

• Events - functional event handling and flexible listener registration
• Scheduler - easy access to the Bukkit scheduler
• Promise - a chain of operations (Futures) executing between both sync and async threads
• Metadata - metadata with generic types, automatically expiring values and more
• Messenger - message channel abstraction
• Commands - create commands using the builder pattern
• Scoreboard - asynchronous scoreboard using ProtocolLib
• GUI - lightweight by highly adaptable and flexible menu abstraction
• Menu Scheming - easily design menu layouts without having to worry about slot ids
• Random - make random selections from collections of weighted elements
• Bucket - sets of distributed and uniformly partitioned elements
• Profiles - a lookup repository and cache for player uuid & name profiles
• Plugin Annotations - automatically create plugin.yml files for your projects using annotations
• Maven Annotations - download & install maven dependencies at runtime
• Terminables - a family of interfaces to help easily manipulate objects which can be unregistered, stopped, or gracefully halted
• Serialization - immutable and GSON compatible alternatives for common Bukkit objects
• Bungee Messaging - wrapper for BungeeCord's plugin messaging API
• JavaScript Plugins - javascript plugins using helper-js and Nashorn

... and much more!

• How to add helper to your project
• Standalone plugin download

Documentation and a more detailed feature overview can be found on the wiki, here: https://github.com/lucko/helper/wiki