Gradle Wrapper

The recommended way to execute any Gradle build is with the help of the Gradle Wrapper (in short just “Wrapper”). The Wrapper is a script that invokes a declared version of Gradle, downloading it beforehand if necessary. As a result, developers can get up and running with a Gradle project quickly without having to follow manual installation processes saving your company time and money.

The Gradle Wrapper explains it.

It's more complicated than what I have on my local (for grid), but I don't need it to do much. If I did, then this looks to be a nice addition.