Fix dangling javadoc - #43

CC @dlam

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Thanks for your pull request. It looks like this may be your first contribution to a Google open source project (if not, look below for help). Before we can look at your pull request, you'll need to sign a Contributor License Agreement (CLA).

📝 Please visit https://cla.developers.google.com/ to sign.

Once you've signed (or fixed any issues), please reply here with @googlebot I signed it! and we'll verify it.

What to do if you already signed the CLA

Individual signers

• It's possible we don't have your GitHub username or you're using a different email address on your commit. Check your existing CLA data and verify that your email is set on your git commits.

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@zactestaccount You will need a Test stanza in the pull request body.

Something like Test: N/A.

Updated the body, is that enough to re-kick?

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(Googler, please make sure the reason for overriding the CLA status is clearly documented in these comments.)

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https://github.com/androidx/androidx/pull/43/checks?check_run_id=905231998 😄

@zactestaccount your build was successful ! 🛩️