Thus, the depicted references from JavaScript objects to Java objects are virtual—they don't exist directly. Instead, it is the Java bridge who holds the Java objects for as long as it is needed. We ...

abstract continue for new switch assert default goto* package synchronized boolean do if private this break double implements protected throw byte else import public throws case enum instanceof return ...

Immediately after upgrading the Room version from 1 to 2, does your app crash on startup and show an exception like this in ...