MinecraftForge/MinecraftForge — pull request #634 by Soaryn (2013-07-03 00:08:58+00:00)
Title: Proper return for getRegisteredFluidContainerData

Without declaring a type in the toArray() via passing an instance of a FluidContainerData[] java has hicups with things such as for loops that are Object Based rather than index based.
Scenario: for(FluidContainerData data: getRegisteredFluidContainerData()) would crash due to inability to cast an Object to a FluidContainerData type.