moving the base JVM level forward to Java 11

[Rick Hillegas]

Discussion on https://issues.apache.org/jira/browse/DERBY-7076 suggests 
that we could move the base JVM level of the next (10.16) release 
forward from Java 9 to Java 11. The practical consequence of this is 
that the 10.16 family would NOT run on Java 9 and Java 10 JVMs. I do not 
think that this would be a serious problem. I suspect that most users 
who migrate off Java 8 will skip the intervening non-LTS versions and 
upgrade to Java 11 directly. Moving the base JVM level forward would let 
us take advantage of more improvements to the core libraries. Following 
our past practice, this change would require a vote by the community.

What are your thoughts?
Thanks,

-Rick