User-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0
I checked with the guys working on the TCK -- they report they have run
the TCK builds, and also built all the docs., using JDK 11. The builds
for everything succeed. We haven't done a detailed check of the
contents, but that seems unlikely to be severely broken. So -- we can
check off the TCK project for ancillary build with JDK 11 concerns.