MinecraftForge/MinecraftForge — pull request #413 by immibis (2013-02-13 12:41:55+00:00)
Title: Fix EventTransformer throwing an NPE when transforming a class that doesn't exist.

All other transformers handle the case where the class being transformed doesn't exist, and bytes == null.
EventTransformer throws an NPE in this case, so most ClassNotFoundExceptions point at EventTransformer as the cause. This PR fixes that.