??? Absolutely not. ErrorProne is a Google project that is not integrated into javac, and merely acts as a plugin to it. To have ErrorProne running on your project, you need to:

- Know about it (first, big problem for many java shops)

- Integrate it with Gradle/Maven/Ant/yourbuildtool

- Enable the null checks because they are not enabled by default.

Compare this with "it's already in the compiler"