MinecraftForge/MinecraftForge — pull request #499 by fresc81 (2013-04-01 14:51:56+00:00)
Title: Added support for common (java style) event listeners

There seems to be no good reason for me to force modders to know at
compile time which events their mod should listen to at runtime. With
this minor change Forge offers the modders a higher degree of freedom
when implementing event handlers.