I'm almost positive this isn't something specific to my environment but the gradle + gradlew autocompletion never seems to works. Here's what i'm trying:

in my .zshrc:

 plugins=(brew git git-extras ruby rails gradle)

in my aliases.zsh:

alias gradlew="./gradlew"
alias gw="./gradlew"
alias gr="gradle"

on my console, as i type gradlew <hit tab here> nothing shows up. i've tried almost every combination with/without aliases etc.

I don't have this problem with git/brew/ruby or the other plugins shown above.