WrongOneof
This field is guaranteed not to be set given it's within a switch over a one_of.

The problem

When switching over a proto one_of, getters that don’t match the current case are guaranteed to be return a default instance:

switch (foo.getBlahCase()) {
  case FOO:
    return foo.getFoo();
  case BAR:
    return foo.getFoo(); // should be foo.getBar()
}

Suppression

Suppress false positives by adding the suppression annotation @SuppressWarnings("WrongOneof") to the enclosing element.