Add missing javadoc classpath declaration.

[rlazo]

No description provided.

[google-oss-bot]

Coverage Report ¹

Affected Products

No changes between base commit (51cc21f) and merge commit (6b53d41).

Test Logs

• Base (51cc21f): https://android-ci.firebaseopensource.com/view/gcs/android-ci/logs/postsubmit-check-coverage/1517315851424894977
• Merge (6b53d41): https://android-ci.firebaseopensource.com/view/gcs/android-ci/pr-logs/pull/firebase_firebase-android-sdk/3674/check-coverage-changed/1517612182148222976

Notes

• Commit (6b53d41) is created by Prow via merging PR base commit (51cc21f) and head commit (a8b98fc).
• Run gradle <product>:checkCoverage to produce HTML coverage reports locally. After gradle commands finished, report files can be found under <product-build-dir>/reports/jacoco/.

1. https://storage.googleapis.com/firebase-sdk-metric-reports/j7eCZEENtQ.html

[google-oss-bot]

Size Report ¹

Affected Products

No changes between base commit (51cc21f) and merge commit (6b53d41).

Test Logs

• Base (51cc21f): https://android-ci.firebaseopensource.com/view/gcs/android-ci/logs/postsubmit-binary-size/1517315851424894976
• Merge (6b53d41): https://android-ci.firebaseopensource.com/view/gcs/android-ci/pr-logs/pull/firebase_firebase-android-sdk/3674/binary-size/1517612182152417280

Notes

• Commit (6b53d41) is created by Prow via merging PR base commit (51cc21f) and head commit (a8b98fc).

1. https://storage.googleapis.com/firebase-sdk-metric-reports/NQ9nXnUsfP.html