Stefan Richthofer added the comment:
could you please specify Jython-version and Java-version you tested with?
Especially, did you use Jython 2.7.0 or current trunk version?
I am asking, because AFAIK TLS protocols are not implemented in Jython, but imported from either netty or JVM. In september or so we upgraded Jython's netty support to Netty 4 which might have improved this support. This upgrade has not yet been released, not even in Jython 2.7.1b3. So it would be crucial that you check this issue in current Jython trunk version (e.g. by cloning from https://github.com/
Then. It might be relevant that Java 7 disables TLS 1.2 by default for client side. E.g. see
questions/747377/enable-tls-1- 1-and-1-2-for-clients-on-java- 7
I am not sure in what way this applies (if at all), given that netty is involved. Anyway, please check it first, before we investigate further.