Multiverse/Multiverse-Core — comment on commit 2eb61af76f583b4e33b3c266980e45b751b23ddb
File: src/main/java/com/onarandombox/MultiverseCore/api/MVWorldManager.java line 43
By main--:

I don't really like abusing primitive-wrappers like that...

([Using and avoiding ``null``](http://code.google.com/p/guava-libraries/wiki/UsingAndAvoidingNullExplained))