I've put up a PR for HBASE-27443, to change the version of the jdk for our general checks to 11.
https://github.com/apache/hbase/pull/4845 This could be good progress on moving up to jdk11, as we have discussed dropping jdk8 support for maybe HBase 4.0. And we could also bump the version of error prone plugin as starting from 2.11.0, error prone plugin only supports jdk11+. PTAL if you have interest. Thanks.
