Uses of Class
org.bukkit.command.Command

Packages that use Command 
Package Description
org.bukkit.command
Classes relating to handling specialized non-chat player input.
org.bukkit.command.defaults
Commands for emulating the Minecraft commands and other necessary ones for use by a Bukkit implementation.
org.bukkit.help
Classes used to manipulate the default command and topic assistance system.
org.bukkit.plugin.java
Classes for handling plugins written in java.