mozilla-services/android-sync — comment on commit 38139e4ae4e93e2b39b867d98d85e44af3665306
File: src/main/java/org/mozilla/gecko/sync/repositories/HashSetStoreTracker.java line 45
By rnewman:

Me too, but I'd rather not have a method call overhead on every record on a first sync. The null check in the filter invocation location will be JITted away.