That looks interesting but I am not sure if I understand correctly,
isn't the problem that the system API (Bigtable, Cassandra, etc)
exposes guava related stuff? Or in other words, wouldn't the
transitivie version of guava leak anyway?
If it does not I am pretty interested on doing this to fix the
Cassandra IO from leaking too.
https://issues.apache.org/jira/browse/BEAM-5723

On Thu, Feb 28, 2019 at 5:17 PM Kenneth Knowles <[EMAIL PROTECTED]> wrote: