Notice (2018-05-24): bugzilla.xamarin.com is now in
Please join us on
Visual Studio Developer Community and in the
Mono organizations on
GitHub to continue tracking issues. Bugzilla will remain
available for reference in read-only mode. We will continue to work
on open Bugzilla bugs, copy them to the new locations
as needed for follow-up, and add the new items under Related
Our sincere thanks to everyone who has contributed on this bug
tracker over the years. Thanks also for your understanding as we
make these adjustments and improvements for the future.
Please create a new report on
Developer Community or GitHub with
your current version information, steps to reproduce, and relevant error
messages or log files if you are hitting an issue that looks similar to
this resolved bug and you do not yet see a matching new report.
Somehow we are missing this.
Probably due to generics limitation or failed recursive generic argument resolution (bug).
I believe this was fixed awhile back, I see a "ConcurrentSkipListMap" in the most recent stable version of Xamarin.Android:
[Register("java/util/concurrent/ConcurrentSkipListMap", DoNotGenerateAcw = true, ApiSince = 9)]
Xamarin.Android SDK 188.8.131.52
Thus marking this bug as RESOLVED FIXED for the time being as I was able to verify this is available.